Acetone

[lane]

ive been using acetone for months with great results mpg went from a norm of 26-28 up to 30-36 mpg it definately works and makes my car start faster and run smoother.:thumbup:
does any one else have any expirience with using acetone???? i would like to know.
1-3 oz per 10 gallons gassoline
1-2 oz per 10 gallons diesel (bio or petroleum)

[SVOboy]

Search the forums, there are several threads on it. I saw no effect.

What car do you have?

[lane]

i drive a 92 geo storm, maybe the gas your using contains ethanol? because using ethanol blend gas will neutralize the increased efficiency .

[SVOboy]

The gasoline I used at the time did not.

You should be aware that I do not believe in acetone. The science isn't there, and neither is the empirical evidence, as far as I'm concerned.

[tomauto]

I wish it were just that easy...IF it was, than it would be in the gas already...

This same subject is what brought me here...but alas, it cannot ever be better than driving techniques.

[kickflipjr]

What do you think about it cleaning the injectors? I think that may be one advantage to acetone. If the car has clogged injectors puting some acetone in every few tanks MAY help.

I saw no real results when I used it. I have seen no results in anything except for driving style and conditions (of couse I don't have a sangauge so I can't test enything...)

[onegammyleg]

What do you think about it cleaning the injectors? I think that may be one advantage to acetone.

Thats my theory too.
This would explain why some get benifits and some do not.
I have posted about this before.

Down side is that acetone will eat injector O rings and rubber hoses (if fitted)

[zpiloto]

Thats my theory too.
This would explain why some get benifits and some do not.
I have posted about this before.

Down side is that acetone will eat injector O rings and rubber hoses (if fitted)

I think it helps a tiny bit but my theory is that when people start to use acetone they are trying to get better gas mileage thus change driving habits. I've have not seen any data from anyone with instantaneous FE feed back that has shown a gain or show data proving a gain.

[jamescartagena]

I've been using Acetone and other "additives" for 2 years now and it works great on both my vehicles. 97 Ford F150 (average 2 mpg increase) and 92 Saturn (average 5 mpg increase). My last five tanks of gas average slightly over 40 mpg. That's with an automatic where the best I could get before trying acetone on this car was 35 mpg. Last fillup I didn't use any additive in the gas and mileage went back down to 35. It works for me and I'll keep using it. So far have used 3 gallons in the past two years in the family's three vehicles and not one problem except better gas mileage.

[MetroMPG]

It's great that you're getting good fuel economy, but tank to tank results are not a good basis to authoritatively assert that something "works" or not. There are simply too many variables at play.

I've also yet to see a properly controlled test showing beneficial FE effects of acetone.

[brick]

I have tried additives in the past and I don't plan to try them again. There were no results with any of them, including acetone. Instead I decided to focus on driving habits and managed a handy 25% increase in average fuel economy, with the capability to reach numbers in the region of 50% improved or better if I give it 100% effort. I agree with Metro, simply looking at your tank results is not a good way to test this kind of thing. It requires instrumentation as a minimum, and really should be done in a lab. The human factors are way too significant otherwise.

[repete86]

It's great that you're getting good fuel economy, but tank to tank results are not a good basis to authoritatively assert that something "works" or not. There are simply too many variables at play.

I've also yet to see a properly controlled test showing beneficial FE effects of acetone.

I don't know of any controlled tests, but I do know that the fact that my '93 Accord is getting an additional six mpg in the city and eight on the highway is no coincidence. I was driving it for about five months before acetone, and have been driving for two months with it. The best I could get before acetone was 24/30. I now get 30/38. Occasionally, I will do better. The best I have seen was 34 in the city and 40 on the highway.

It seems to work better on older cars. Most of the people saying that it does nothing that I've seen are driving cars that are only a few years old whereas the cars that have been around for a while get better results. I think it may be because of carbon buildup in the engine and injectors. Acetone is an ingredient in most fuel injector cleaners.

[MetroMPG]

I think it's great that you're getting better mileage. Seriously!

But without results from controlled testing, I'll remain skeptical. Nothing personal.

I think it may be because of carbon buildup in the engine and injectors. Acetone is an ingredient in most fuel injector cleaners.

Are you still using it now that you've cleaned your fuel system?

[repete86]

I'm still using it, and it's remained consistent. I'm not sure about what I want to do next to the car though. I'm trying to get the best mileage that I can out of it. I'm thinking that freeing up the air intake and exhaust will be my next step.

[Spule 4]

This has gone on for years. In refining, this is what off brand gasoline is for, if you have a batch of a few thousand gallons, you can dispose of a bit of off spec industrial solvents in the mix, none the wiser.

[lane]

Well i do agree that ACETONE cleans the fuel injectors but thats not the only reason it boost gas mileage, because as soon as i stop using acetone the MPG goes back down to my norm

also if your using ethanol blend gasoline this will neutralize the benefit of the acetone, you might get a 0-5% boost in MPG while with strait gasoline and acetone you should get 10-35% increase in MPG.

[lane]

also oil companies are in the buisness to make money, they would not make a more efficient fuel unless the government forced them too, they know that if they make a fuel that is 10-35% more efficient that they will lose that much in profit.

[SVOboy]

also oil companies are in the buisness to make money, they would not make a more efficient fuel unless the government forced them too, they know that if they make a fuel that is 10-35% more efficient that they will lose that much in profit.

If an oil company could make a gas that much more efficient, they would. They'd somehow protect their mystery blend and drive everyone else out of business and then charge outrageous monopoly rates on people. I sincerely doubt any company resists simple, cheap, "proven" things that can better their product by a third.

I mean, car companies spend millions of dollars doing little crap to eek out better efficiency and test new ideas, you'd think if it were so easy toyota would just buy a chain of stations and sell toyota gas to be all, look at me, I'm toyota and my hybrids get 100 mpg when using special, toyota hybrid gas. But of course, that's complete crap.

So is a 35% increase from acetone. It's just ridiculous.

[zpiloto]

also if your using ethanol blend gasoline this will neutralize the benefit of the acetone, you might get a 0-5% boost in MPG while with strait gasoline and acetone you should get 10-35% increase in MPG.

Why??

[lane]

partly because ethanol has a lower energy content than gasoline but besides that i have no clue. But i know that this is true from my own expierience, from the very first time i filled up with Ethanol blend gas E10 my MPG dropped by 5 MPG

[JanGeo]

I didn't use acetone on my return trip from Maine and had head winds going up and averaged about 37.5mpg - haven't finished compiling the info yet but when I do you should see a dip in the gas log. My fillup after I returned I used both Torco and Acetone and was getting 41.9 from my 200 mile trip to the Cape and back on Thursday this week and did a 70mpg segment on the way back and got 45.6mpg round trip today with a school bus on one of my legs where I usually coast. This is a New Scion xB so as far as I am concerned it works HOWEVER if you want to go fast it will burn gas just like without it.

[Ted Hart]

also oil companies are in the buisness to make money, they would not make a more efficient fuel unless the government forced them too, they know that if they make a fuel that is 10-35% more efficient that they will lose that much in profit.

Absolutely! Anyone who has taken Econ 101 should have learned this! :thumbup:

[Ted Hart]

I mean, car companies spend millions of dollars doing little crap to eek out better efficiency and test new ideas,

So is a 35% increase from acetone. It's just ridiculous.

I completely agree...35% is a whopping increase! Like putting a turbo on an air-breather! Even 3.5% is a bunch! I believe the 3.5% figure ( from a slipped decimal point?) is buried in the "noise" of these test procedures! Giving one number for a MPG is not smart....A range would be preferred...but wouldn't impress many people! MPG is a rubbery parameter, anyway! No two tests, especially on different days, will give the same number! :rolleyes:

[badgett]

mix in some xylene with the acetone. Equal parts. Then you will see a noticable difference. I did. Xylene is useless by itself but if you put it with Acetone it really helps. It can be found in the same place as acetone in your hardware store. Also make sure your acetone is 100% pure. Paint stores seem to be the only ones who truly have 100%.

[bobc455]

Xylene is useless by itself
Xylene (by itself) can be used as an octane boost, much like Toluene.

In fact, if I want to make some home-brew race fuel, I add one gallon of xylene and one gallon of toluene to my tank.

But from an MPG perspective, I do agree that you would probably see no benefit from adding Xylene.

-Bob C.

[JanGeo]

partly because ethanol has a lower energy content than gasoline but besides that i have no clue. But i know that this is true from my own expierience, from the very first time i filled up with Ethanol blend gas E10 my MPG dropped by 5 MPG

IT has to do with surface tension and the ability of fuel droplets to form - ethanol increases surface tension and thus makes the tiny droplets harder to form small sizes - big droplets of fuel do not burn or evaporate as well as small droplets of fuel. Acetone reduces the surface tension of the gas to allow smaller droplets to form thus letting it evaporate and burn more completely. At high fuel volume it doesn't amount to much of an increase in combustion because it all gets burned up pretty well HOWEVER spray just a little fuel in and have the timing try to ignite it well before top dead center at a reduced pressure and concentration and that is when a better vaporized fuel will burn a little better ALA Acetone enhansed !! Or your hydrogen added gas as well. This is why water beads up on surfaces and your hand and skin where as acetone wants to run down the side of the bottle or can when you pour it and spreads all over your hand when it touched one spot. Surface tension!!

[koinos]

Surface tensions for Acetone, Ethanol, or any gasoline blending component (i.e. iso-octane) are almost same 22 dyne/cm. The mixture of any of those components will have same surface tension, presumably. The big difference for Acetone is flash point. It has flash point of 10 deg F, while iso-octance has 90 deg F. Therefore, I can say Acetone is more volatile, it also has a heating value a little bit higher than ethanol but much lower than iso-octane. Acetone (C3H6O) is also a oxygenate component like ethanol or MTBE. It may have some effects but surface tension may not be the correct answer.

I have tried with my 96 Paseo manual that has already 40 MPG with Chevron gasoline with 5.7 vol % ethanol.(in Calif.) But I have very little or no improvement that's why I studied about their properties. I'm still studying and I'll post if I can make some experiment by myself.

[undrgnd]

I just came across this forum last week and spent a few days reading up. I own a 2007 Civic and have been slowly tweaking it to where I now get better mileage than the numbers on the sticker, which we all know will drop by 10-15% in 2008. I must say there are some interesting ideas here, although some I would not feel like trying, just yet.

What still amazes me is how many people are on opposite sides of this acetone thing. For all the doubters that have NOT tried it, you're simply expressing an opinion, and as we know, opinions are like arm pits, everyone has them, and they all stink. For those that HAVE tried it and claim they saw no benefit, I am amazed by how many said "but if I had some instrumentation, maybe I would see a difference"... WTF? Which brings us to those like myself who HAVE tried it, DID have instrumentation, maintained good records, and are absolutely convinced. I will take my results for something I saw with my own two eyes, any day of the week, over some BS on the internet that acetone will dissolve my fuel system and melt my pistons. Think about it: There is no effing way ALL of of us did this wrong, found a significant gain with acetone, and then a marked drop without. It must be a conspiracy, I suppose. Or we can just chalk it up to 'the human factor' because we were just trying to conserve fuel with acetone in the tank. Oh right, I purposely skewed my driving style w/o acetone to waste fuel so I could finance some Arab's life style.

What you should be doing is trying to figure out WHY it worked for some of us, and it didn't for others (assuming they even tried it, or have the correct results in the first place). I KNOW it works: Three years, over 100K miles, on 4 very different vehicles. The effect will vary based on the car, driving style, and gas brand. But, all else being equal, acetone improves FE significantly! As far as I'm concerned, I hope nobody uses acetone so its price can stay nice and low for me.

[LxMike]

undrgnd. thats a good first post. can you go to the introduce yourself forum and tell us some more about you and your car and the Tweaks your've made.

[ELF]

What you should be doing is trying to figure out WHY it worked for some of us, and it didn't for others


I have to agree with you, I have been using acetone for more than 2 years. In my car its worth a solid 2 mpg, but in my old f150 it has no effect I have tried various amounts and different gas such as ethanol free gas, but acetone did nothing in the truck.

[Coyote X]

When my metro xfi was stock I could pick up 1-2mpg with acetone. Now with the cam advanced a few degrees and 10.5:1 compression acetone doesn't do anything except make it knock more.

One idea is maybe acetone lowers the octane rating of the gas slightly so if your timing is not advanced as far as it should be then it helps your mileage by making the timing match the fuel burn speed more closely. I can't see it actually changing it much so maybe .1 point lower on the rating. This would be about the same as advancing your ignition timing maybe 1 degree. One degree of timing advance might give you 1-3mpg depending on how far off optimal the timing is.

Just an idea from what I have seen with using acetone. Prob not right though just a wild guess.

[SVOboy]

Acetone has an octane of 150.

[MetroMPG]

If I saw a properly controlled acetone test, I would look more closely at it.

The results of tank-to-tank testing of any fuel and/or oil additive are subject to too many external variables to make authoritative claims with a straight face.

Extraordinary claims require extraordinary evidence, and nobody has shown any quality evidence when it comes to acetone.

[RunningOnFumes]

Would it be possible to get some feedback regarding this page ? http://www.lubedev.com/articles/additive.htm
It seems to very well written and informative but I'm not an engineer . Thanks

[SVOboy]

I'm not an engineer either, but I think his writings are very far off the mark. If you read through them carefully you will not things that are blatantly not true and/or completely misleading.

Tony's Fuel Saving Info is the best resource for debunking such an article. But I'm sure someone will disagree...

[psyshack]

If I saw a properly controlled acetone test, I would look more closely at it.

The results of tank-to-tank testing of any fuel and/or oil additive are subject to too many external variables to make authoritative claims with a straight face.

Extraordinary claims require extraordinary evidence, and nobody has shown any quality evidence when it comes to acetone.

Well how do we know areo mods work? Even some seasoned hypermilers say it works. They don't talk about it much cause they get slammed.

My tanks have gotten pretty stable since the ECU change in my Civic. I may give this a try. I will be off the WAI soon also. This time of the year rain and winds can have a effect. But the cold temps are going to be gone. I think I will give this a try. I know how hard it is for me to get a 50 mpg tank out of my Civic.

Think I'll try it. Wont be a controlled test. I know my marks and what Im going to be getting if certin conditions and the whys about them. Might be fun.

psy

[RunningOnFumes]

Well , I've put in a mild solution of acetone into my LS1 powered Chevy truck . These engines are known for being economical for thier dispacement as well as their power out put . The last mileage check I did with a topped up tank on a highway trip was 21mpg . This was averaging 70mph with the a/c on the entire way . Also I was going north from N.O. into northern Mississippi so I got into hill country . I know that this was only one time and that you need a log , which I didn't have , but will now . With prices the way they are I usually just put in 10 gallons at a time and run it back down to the quarter tank mark . I know that 's not accurate but I'm estimating I average about 16 to 16.5 around town with some highway going to work . I'll let you guys know if I see any kind of gain at all . Guess I need a scanguage , right ? How much do those run ? Thanks

[Phoenix]

How do we put this issue to bed? Maybe a scangauge, a baseline consisting of 3 bidirectional 6 mile runs at 55 with cruise control, pull over to add the acetone and then maybe two more runs? Any other controls to add to the test? I am really curious as to the controversy over this... so skeptics unite and lets create the test to find the truth!

[Peakster]

How do we put this issue to bed? Maybe a scangauge, a baseline consisting of 3 bidirectional 6 mile runs at 55 with cruise control, pull over to add the acetone and then maybe two more runs?

:eek: Why didn't I think of that?!?! It's so simple and obvious! *bangs head on desk* I kept on thinking: "how on earth can I drive with acetone in one trip & then drive without the next?". Starting off the experiment without acetone and then adding it later makes SO MUCH sense that I feel silly!

I'll definitely make that one of my next YouTube (http://www.youtube.com/watch?v=van5VmJ1yno) experiments! Thanks. Awesome first post!

382

[SVOboy]

Indeed, but that always has the issue of, "it got warmer" or something else coming with it. I think if someone actually pulled an injector out of their car and taped the spray to show the "difference" in vaporization it might be interesting. *shrug*

[MetroMPG]

The most valid test is A-B-A, one immediately after the other, in the exact same conditions. That's why testing fuel/oil additives is so difficult. It's easy to add something to the fuel, pretty hard to take it out to return to the baseline condition.

[ELF]

http://www.metacafe.com/watch/524517/double_your_gas_mileage/

[trebuchet03]

I'm not an engineer either, but I think his writings are very far off the mark. If you read through them carefully you will not things that are blatantly not true and/or completely misleading.

It's far from an engineering report :P Claims are qualitative, many without a reason. Why would acetone work with some brands of fuels and not others? This makes me think that your problem isn't that you're not using acetone... It's that you're using a poorly maintained fuel station :thumbdown:

Big Oil and the American Car Manufacturers and others do NOT want you to know.

An engineering report would never say anything like that - it destroys your credibility telling everyone you're no longer an objective observer (that's not engineering - that's scientific method). Again, I stand by this. If a single oil company could claim "Our gas may give you 35% more FE reliably" - imagine how quickly their customer base will grow.

This reverse test method will be repeated in the spring with new oil and some other additives in the acetone that I am working on.

So, what this person just said is that they are posting their results BEFORE completion of their testing.

A number of things must be done and these are outlined in other SmartGas articles. The right spark plugs and wires. The right oil. The right thermostat. The right oil filter, etc. Find the best gasoline station in your area. THEN we add a little acetone to the fuel. Or these items may be done concurrently. You will not get good mileage by putting good acetone in bad gas. At least we never have. So that is the methodology we regularly use.

No mention of driving technique.

The pattern seems to be that engineers and researchers are nearly all in favor of acetone while mechanics are split or afraid to try for reasons based on myths.

Obviously, this person hasn't searched through academia - said engineering and researchers' reports :p

Look at what happened in Brazil. Millions of engines and fuel systems were ruined in that country by alcohol.

Utterly False. Perhaps if they were using methanol - maybe. but they're not and it took them over 20 years to do the switch. But there's no hype in their media about mass engine damage - nor is there any documentation that mass engine damage has occurred. Respect for that article = 0. That person is playing off ignorance now - why didn't s/he say ethanol instead of alcohol. Because yes, there are alcohols that are hazardous to AL. Hell, ethanol is hazardous to fiberglass (so don't be putting it in fiberglass fuel tanks - you boaters :P).




Well how do we know areo mods work?

A-B-A testing - literature in scientific journals - repeatability of results.

Here is a big question... Why are the results not repeatable across all engines (lets even narrow it down to fuel injected). I ask this because part of verification of a result is the repeatability of a result by others in the community. If someone else, following your method, can't repeat it - it's not a result.

When that happens, you're asked to review your results and search for sources of error or external factors that could have influenced your measurements. The key is: A measurement is not a result (yet).


--------
Please don't get me wrong - I am willing to test this. But, we all must agree on a viable way to test. Those that claim it works must agree to the testing conditions. And then it must be a long term test using multiple makes/models in different climates (no worries, the statistics of the data will show how temperature effects it).

Again, I'm bashing on the article and the claims it's making without support.

Then, we need to figure out why it works. Honestly, I'm not satisfied with the atomization explanation and I've found not academic/scientific journal that supports that claim. Hell, one web site claimed that it was the increase in octane and higher octane means cleaner burn :thumbdown: I'll even go as far as going surface tension testing (which I have done in the past and I can easily repeat - it's not hard at all).

But to be honest, I'm not so sure a long term test would do any good.... I suspect that it's just going to be lost through the evap system :thumbdown:

[MetroMPG]

A number of things must be done and these are outlined in other SmartGas articles. The right spark plugs and wires. The right oil. The right thermostat. The right oil filter, etc. Find the best gasoline station in your area. THEN we add a little acetone to the fuel. Or these items may be done concurrently. You will not get good mileage by putting good acetone in bad gas. At least we never have. So that is the methodology we regularly use.Another example of failure to understand proper methodology - if he's suggesting you tune up your car, switch thermostats & gas stations, and add acetone, how can you isolate which factor influenced the results?

Of course, it may just be a case of unclear writing, and the author may be trying to say that you should do all the tune up items at once, to gain a baseline, and THEN change another variable (acetone).

[zpiloto]

It's amazing that this comes up over and over again. Acetone really seems to be a YMMV additive. This is one of those subjects that never wants to die. But here's (http://www.gassavers.org/search.php?searchid=91507) some more reading for you. It's just a search of this site for the discussion so far.

[Phoenix]

Ouch...I guess trying to get involved in an emotionally charged acetone discussion for my first post was setting myself up a bit... but damn!

Anyway, before I make anymore suggestions, could anyone explain what kind of test could be devised to prove or disprove acetone? MetroMPG pointed out that a return to baseline would be needed to validate the test... What other complications exist that make this issue more difficult to find consensus?

I to would like to help with this test but will need a little coaching in order to avoid a novices' errors.

One more thing, what did trebuchet03 mean by this: "I'm not so sure a long term test would do any good.... I suspect that it's just going to be lost through the evap system"

[zpiloto]

You can do like I did and dump it into someones car with out telling them and see what happens to there mileage.:)

[MetroMPG]

Hey Pheonix - don't worry about it.

I'm not sure if Trebuchet was suggesting we lose fuel to evaporation if the tank isn't used up quickly? We'll have to wait until he chimes in again. I was under the impression modern cars have closed fuel systems.

It does raise the general issue of tank-to-tank testing again, and it bears repeating: there's too much variability in tank-to-tank testing to be able to draw firm conclusions from changes made, unless the effect is likely to be very big.

There are very few drivers who could track their fuel consumption - without making ANY changes to the car - and not see a significant amount of variability in their results.

That's what makes tank-to-tank testing questionable.

[MetroMPG]

Z: that's funny. :)

[Phoenix]

Yeah, I never felt like I was getting anywhere with tank-to-tank...(then I discovered the Internet, and scangauge, and the the fact that almost everything I had been trying to "discover" as to having an effect on FE had already been done for me with refreshingly dedicated precision and objectivity...and with published results to boot!)

So, being barely past the tailgate up or down question, acetone seemed like a nicely inexpensive and easy next step, especially after dropping a good chunk of my new tire money on a Scangauge instead. But the wildly disparate claims, the warnings over fuel system and/or engine damage, and especially all the heated debate, scared me out of just dumping it in the tank. This all brings me here to my next set of questions:

What is the lowdown on fuel system and/or engine damage? Isn't acetone the main ingredient in some type of commonly-found-in-the-gas-station engine maintenance fuel additive?(fuel injector cleaner?) And if so I assume that adding a few ounces to ten gallons of fuel can't possibly have a short term effect (I guess we might start asking questions about long term effects once the results are in)

As far as the A-B-A testing, I can see why getting that second A would be very desirable, but is it necessary in order to get the test off the ground? Would the results from a first round of A-B tests with multiple makes/models in different climates it be significant enough to prove verifiable and repeatable effect?

And lastly, if the A-B tests are convincing enough, maybe as second round test (or as the only test if people generally disagree with the validity of the idea of an A-B first round test) we could feel justified in dropping the bucks on one of those fuel additive injection devices (or as Peakster suggested, utilizing a duel fuel tank set up) and easily get an A-B-A test to neatly tie up the lose ends?

Yes? No? Go to hell? I'm ready for it :)

[Antoine]

Let me add my grain of salt here ! Being a non-beleiver in any additives after many past experimentations without any effect on FE, not knowing why... I tried acetone last winter and... oh surprise I got 8-10 % improvement. What was my scientific method ? Well the best one .... feeling !!!!! Well not exactly, but I usually know in advance the FC I will get on a tank just by the way I drive and the route I take, speed, etc... And I rarely miss since 40 years. But when I do miss, I have to know why... and last fall-winter, I saw this 10% improvement... so I knew there was something different.

[trebuchet03]

I'm not sure if Trebuchet was suggesting we lose fuel to evaporation if the tank isn't used up quickly? We'll have to wait until he chimes in again. I was under the impression modern cars have closed fuel systems.
e.

Slaps hand on forehead.... sorry for the memory lapse there :p I was in 50's panel truck mode (my father's restoration project) :thumbup: You're 100% right - my apologies :P

What is the lowdown on fuel system and/or engine damage? Isn't acetone the main ingredient in some type of commonly-found-in-the-gas-station engine maintenance fuel additive?(fuel injector cleaner?) And if so I assume that adding a few ounces to ten gallons of fuel can't possibly have a short term effect (I guess we might start asking questions about long term effects once the results are in)

I'm going to say damage is little to 0. Testing yourself is very easy -- just make sure to use fuel system hose - as it's not exactly rubber (I'm fairly certain it's a neoprene) ;)

As far as the A-B-A testing, I can see why getting that second A would be very desirable, but is it necessary in order to get the test off the ground? Would the results from a first round of A-B tests with multiple makes/models in different climates it be significant enough to prove verifiable and repeatable effect?

No - think of it as the placebo test. You can get quite drastic before after results just by taking a placebo - this is why pharm. testing uses blind/double blind testing. The best test is more than one A-B-A cycle - to verify your results are consistent.

[Bill in Houston]

I stiil think that I could be convinced by a series of A-B tests, if it was on a flat stretch of road, using a scangauge and cruise control. But that's just me.

[Phoenix]

What about distance? I saw a test where someone was talking about 100 miles or so... I was thinking more like 6 miles total in a bi-directional run. Does that seem too short?
oh...and trebuchet03, when you said "just make sure to use fuel system hose - as it's not exactly rubber (I'm fairly certain it's a neoprene)" Did you mean to deliver the acetone to the tank? If so, why not a long funnel?

[trebuchet03]

oh...and trebuchet03, when you said "just make sure to use fuel system hose - as it's not exactly rubber (I'm fairly certain it's a neoprene)" Did you mean to deliver the acetone to the tank? If so, why not a long funnel?

No, I was talking about if you wanted to do your own testing on how acetone effects fuel system components (damage wise) ;) This way you don't find any old piece of rubber (from say... an old shoe) and assume it's the same material as your fuel lines et. al. components.

[rvanengen]

Why not have someone do a bench test on a couple different engines running in a lab setting. Doing so , you have controlled temperature, humidity, traffic, lead-foot syndrome, and the placebo effect, resulting in documented results.

Then if you are a believer, you have proof...and if you are a skeptic, you have proof.

--Randall
Concord, NC

[trebuchet03]

Why not have someone do a bench test on a couple different engines running in a lab setting. Doing so , you have controlled temperature, humidity, traffic, lead-foot syndrome, and the placebo effect, resulting in documented results.

Then if you are a believer, you have proof...and if you are a skeptic, you have proof.

--Randall
Concord, NC

Like this? (http://www.kettering.edu/visitors/storydetail.jsp?storynum=406)

I've been trying to find a paper published by them... but I've only found that teaser news article :thumbdown:

[kwtorbe]

I tried acetone for one tank in my HX. It is the tank that I got 43mpg in instead of 45....Boooo to acetone for my car anyway...

[ELF]

I tried acetone for one tank in my HX. It is the tank that I got 43mpg in instead of 45....Boooo to acetone for my car anyway...

This is why acetone has a lot of negative feedback IMO , people try it once and that particular tank ends up as less mpg. One tank either up or down would not be proof that something is or is not working. Beside that fact that every tank your mpg will vary. The point is they try it once and come to there own conclusion that its not working, instead of trying another tank, or try a different amount or even a different brand of acetone.

[Phoenix]

Vehicle prepped by running as close to E as possible and then adding 10.5 gallons to tank plus 2 gallons in a potable tank placed in vehicle that is mixed @ 2 oz acetone to 1 gal gas.

"A-A-A" each "A" consisting of a pair of bi-directional 2.6 miles runs, 5.2 per set
At end of "A-A-A", estimated 20.64 miles traveled (plus another 4 to get to the track, and considering that my vehicle gets about 25 miles to the gallon), tank should be down to about 9.5 gal

"B-B" same runs but with 2 quarts of premixed gas first added to tank, bringing the fuel in tank back up to about ten gallons and a total concentration 1 oz acetone per ten gallons
At end of set B-B, estimated 13.75 miles traveled on track, tank should be down to about 9.5 gal

"C-C" started by adding 2 quarts of premixed gas added to tank, total concentration 2 oz per ten gallons
At end of set C-C, estimated 13.75 miles traveled on track, tank should be down to about 9.5 gal

"D-D" started by adding 2 quarts of premixed gas added to tank, total concentration 3 oz per ten gallons
At end of set D-D, estimated 13.75 miles traveled on track, tank should be down to about 9.5 gal

"E-E" started by adding 2 quarts of premixed gas added to tank, total concentration 4 oz per ten gallons
At end of set E-E, estimated 13.75 miles traveled on track, tank should be down to about 9.5 gal

The idea is to see if there is any real change using acetone, and if so can the curve I saw at be recreated. Unfortunately, the best I can come up with for getting back to "A" again is to come back another day a fresh tank or two later and Repeat the same "A-A-A" test and then repeating the same concentration that yielded the best result and comparing the difference.

The other idea I had was to do this same test except with only one gallon initially added (instead of 10.5). I thought the unknown amount of fuel in the tank would pose a problem by being a relatively much larger amount to skew the concentration of acetone, but the benefit would be that after test "E-E" it would not take long to run the tank empty and then go for a full refill to get a return to "A" on the same day and conditions. BUT, although it would be heavily diluted, there again is the unknown quantity of fuel and acetone left in the tank even after running it out of gas.

This would take a lot of time to do so I am hoping for a critique BEFORE I commit to explaining to my wife where I will be this Sunday ;)

[zpiloto]

If you can't do the all the testing in the same day it probably not going to be very good. That protocole will take most of the day and the weather conditions could change quite a bit from begining to end with temperature and winds. I think that would need to drive a little after adding the acetone to make sure it's mixed. Then there the problem of the ECU taking time to readjust for the acetone.

You could just have 2 containers of gas. One clean and one with acetone. Then run the car out of gas fill 2-3 gallons run the experiment run it out of gas and then add 5 gallons pure gas. Hard on the fuel pump though.

[Phoenix]

If you can't do the all the testing in the same day it probably not going to be very good. That protocole will take most of the day and the weather conditions could change quite a bit from begining to end with temperature and winds.

I agree about the same day thing, I was actually budgeting about 3-4 hours for the whole test (11 5.2mile runs, 67.2 miles, with four stops to add acetone and then a short break after each 2.6 miles segment to record data) and as far as wind and temp I would definitely try to do this on a day with fairly consistent weather, and in the afternoon, where the temperature is relatively stable at the top of the daily curve. (also the run is surrounded by temperature stabilizing ponds and trees, and a wind reducing cliff and again the trees)

I think that would need to drive a little after adding the acetone to make sure it's mixed.

A little extra pre-segment driving after adding any acetone seems like a good idea, but how much do you think is necessary? (Peakster's test seemed to indicate that very little time was needed)

Then there the problem of the ECU taking time to readjust for the acetone.

Yeah, that really complicates things as far as trying prove that acetone does make an change. If the test does initially show improvement in FE, then the final ECU adjustment should just show even better FE, right? (And then merit further long term testing?)

You could just have 2 containers of gas. One clean and one with acetone. Then run the car out of gas fill 2-3 gallons run the experiment run it out of gas and then add 5 gallons pure gas. Hard on the fuel pump though.

Yeah, but I thought the unknown amount of fuel in the tank, even after "running out", would pose a problem by being a relatively much larger amount in relation to the acetone/fuel being added and unpredictably skew the concentration.

As for the the fuel pump comment... how hard? Like don't do it?

[trebuchet03]

Yeah, that really complicates things as far as trying prove that acetone does make an change. If the test does initially show improvement in FE, then the final ECU adjustment should just show even better FE, right? (And then merit further long term testing?)



You'd need something better than the scan gauge... Pretty much a laptop connection so you can see short term and long term fuel trim. If the ECU adjusts for long term (which takes a bit of time) - that would be an positive indicator...

I wonder if resetting the ECU before each test would compensate for that...

[zpiloto]

You'd need something better than the scan gauge... Pretty much a laptop connection so you can see short term and long term fuel trim. If the ECU adjusts for long term (which takes a bit of time) - that would be an positive indicator...

I wonder if resetting the ECU before each test would compensate for that...

I've reset the ECU all the time and it can take serval cycles before it smooths out. This is just one of those factors that makes it interesting.

I don't think running it out of gas a half dozen times is going to kill your fuel pump but maybe someone with more experience will chime in.

In reality just run your test. The folks that have had success with this stuff say they get huge gains in the range of 5-10%. Any less than that and it's probably just noise.

Then if you do have success you need to try blind testing. I did that with several tanks on unkowning cars. To see the effect it had with folks that don't know it in there.

[JanGeo]

I don't know the exact mechanical setup for the fuel pump it is a hig pressure pump for Fuel Injected cars and running it out is definately a NO NO! It runs under load normally and that limits the RPM and cools it - no fuel going through it could cause excessive speed and friction and heat and POW! Also getting air in the fuel system is not good either causing all sorts of irratic fuel flow when an air bubble hits the injectors and surges the fuel in the lines then hammers it when the air is gone.

[kwtorbe]

ELF"This is why acetone has a lot of negative feedback IMO , people try it once and that particular tank ends up as less mpg. One tank either up or down would not be proof that something is or is not working. Beside that fact that every tank your mpg will vary. The point is they try it once and come to there own conclusion that its not working, instead of trying another tank, or try a different amount or even a different brand of acetone."

My problem with trying acetone once and having my cars mpg fall 2 mpg is that before that tank I got for 2 months consistent 45mpg tanks. Then on the tank I add acetone, it fell. I wouldn't be so against it if my mpg remained at 45. I think I get more consistent average mpg tanks because I pretty much drive to and from work on the highway going 65mph. Maybe now I should try some more and see if it falls again....I honestly do not like having my average fall though.....

[lunarhighway]

this thread renewed my intrest in acetone. i'm on my second tank with the stuff now.
my first tank with the stuff was a little less but still good hard to blame the difference on the acetone. i've added a little more to see it that that will do.

i did notice some classic things people attribute to acetone. smoother idle and less engine noise (even at high revs). there might however he a slight loss of power but it's hard to tell... the car still runs fine, so perhaps its the lack of noise that makes me think so. at the low revs it actually seems to have more power, but once again that's just a "feeling".

this got me thinking what is the acetone actually doing under the hood?
what causes engine noise and what would reduce it how does combustion at the low revs differs from the high revs. and what would pormore better startup?

my car is carburated, so no electronics adjusting for anything.

[milesgallon.com]

The acetone discussion sound to exactly like those on vortex devices, for some there is a significant improvment (using semi-scientific tests) for others there is marginal or no improvment, for some it affects mpg negative.

I'm starting to think it's actually not improving the fuel economy, BUT making it less bad. That is if you have an old car where the engine was not optimally designed for fuel economy from the beginning and where there is definetly parts of the engine that is not properly tuned anymore these fuel economy additives might change something that neutralizes the flaws of that engine.

A scientific test on one single engine is no good. I would like to have a scientific test several of the cars/engines where the driver has allready proven through their own semi-scientific tests that the fuel economy improves.

That way it would be possible to catc the improvment even though it's only visible in sertaing combinations of cars/engines/driving habits.

Something to consider in lab tests is that even if 99% of fuel is burnt in a warm well tuned engine, many engines are run half of their lifetime below normal operation temperature. Especially in cold climates and with below 10mile commuting distance.

I have never had a car that burns 100% of fuel when the engine is cold, that's proven with the "smell test".

Still a 35% improvment sounds a bit over optimistic, in that case the engine have to be in pretty bad shape before adding acetone and tuning it up might give a 15-25% inprovment without acetone.

Those saying acetone can't do any good seems to have good scientific arguments, but if someone say they have tested it and it work, and it works every time, and they have a habit of monitoring their fuel economy it just feels like they can't be all wrong.

It would really be interesting if any of you who have had above 10% improvements with acetone could do some end-all scientific test on your vehicle with the same driving habits and enviroment where you usually get the improvment.

A data analysis test would be to list every vehicle that has been tested with parameters like carburator/injection, age, engine size, driving habits, fuel type and see if the improved mpg only shows up with specific parameters.

Now that was a long post, excuse me for that, It just intrigues me how the results can be so different. With other mph mods, like tires, people tend to accept that every vehicle gets different results but with engine mods it seems like there is a belief that is has to work for everyone on every engine or it can't be true.

Does anyone know if acetone can be added to diesel and if it's supposed to help?

Simon

[Red]

Going to give acetone a shot on this tank. Using a 2oz/10gallon dose. We'll see what happens

[kitcar]

Very interesting thread. I started down the Acetone road to fabulous savings a couple of years ago with some interesting results. Smoother idle for one - but only after several miles so that's probably the cleaning effect in the injectors.

If I use Speedway gas (10% alcohol) - a Marathon company - I see little or no change at my usual 4 oz per 10 gallons. Maybe 1 mpg but that's noise so I stopped using the Acetone and started getting 20.5 city, 22.5 highway average even with my silly short shifting and coasting downhill.

Then I switched to Meijer gas (a large superstore chain in the mid west) which apparently doesn't have alcohol in it - no pump labels and it doesn't carry that alcohol smell - my mileage went up to 22.5 city and 23.5 highway even with my silly short shifting and coasting downhill. Okay. So I start adding Acetone again and I get 24.5 highway on long trips, the exact same 22.5 in the city.

I know that's poorly explained but I see virtually no difference in the city and enough to make it worthwhile at highway speeds. Plus from what I've seen (and think about this) the more efficient an engine is, the less effect it will have.

That's probably why people with something like a Ford cargo van see giant leaps and folks with already efficient vehicles see no change. As far as the chemical change goes there really isn't one. It's a surface tension thing that is supposed to occur at the molecular level by exciting the molecules in the fuel, what "they" call molecular vibration. Gasoline has "X" surface tension which affects the atomization of the fuel in the combustion chamber and supposedly there is leftover fuel that is just blown out the tailpipe. Acetone is supposed to reduce the surface tension and that is supposed to allow the gasoline that you're spraying in the cylinder to burn more completely because the droplets are smaller thus allowing you to use less fuel to do the work and that's what gets the better mileage. Whether or not an individual vehicle will get better gas mileage is debatable. However, if you live in a smog test state, get your tailpipe sniffed, go home and add the Acetone and then go back for a re-sniff. That'll tell you right there that it does something in the engine.

On paper it makes sense. In real life, who knows. Conducting tests in a laboratory (in my opinion) is pointless (unless you happen to have a whole bunch of engines from different manufacturers) because different engines in different vehicles in different environments with different drivers driving on different road surfaces with different tires will net different results.

[Snax]

I remain unconvinced about the benefit of the stuff beyond what you just said.

To me, the effectiveness of acetone is likely to be little better than unscrewing your antenna for long trips. Yeah, you might see a difference, but probably not much if any at all.

[Red]

Well so far I've run through half a tank. Initial observations are
Quiet idle
Improved throttle response
Better cold MPG 19->21
Lower NVH from the engine

Ambient temps have been a steady 75ish all week.

All improvements could be the result of the injectors getting cleaned, though with only 48k on the clock I was hoping that they shouldn't be too cruddy.

[ELF]

I have been testing acetone in my geo for the last month or so. I have also been driving to the same jobsite for 5 weeks so my testing should be somewhat valid. I found no difference in mpg with acetone, no more power, no smoother running, no faster idle. I tried 2oz. 3oz. 4 oz. per 10 gal. no change at all.

I had the same results with my 94 f-150.

But my sable has at least 2mpg better with acetone, plus it runs smoother. I can not explain why but it does work in some cars.

[JanGeo]

. . . though with only 48k on the clock I was hoping that they shouldn't be too cruddy.

Well how many miles do you think it takes for them to get dirty??? I started using it with less than 10k on a new vehicle and it has helped . . . and when I didn't use it the mileage dropped. I have one theory that it partly dissolves some of the plastic in the fuel system and that ends up being burnt as additional fuel. Just a theory for now. The exhaust does smell different when the engine is cold like I can almost smell the acetone . . . don't stand out there very often and do that however.

You all might try some STP gas treatment a couple of ounces to a tank as I used to do with my 94 Geo Metro 5 door. It seemed to make it run smoother and increase mileage - didn't know about acetone back then to have tried it.

[Snax]

I wonder if the benefit of acetone is related more to the type of oxygen sensors used. In other words, do cars with wideband sensors obtain the benefit while those with the narrow band units don't because of a difference in oxygen levels that fools the wideband toward sensing a rich condition? Obviously if this is the case, then carbureted cars should see little if any benefit.

[Snax]

I've created a poll here (http://www.gassavers.org/showthread.php?t=3491).

[JanGeo]

Guy in Florida used it in a generator and it ran a lot longer - carb without FI.

[VetteOwner]

ehh i still would never even try it on either of my vhelcles. since well pure acitone will disolve plastic and "melt" it together. its essentially glue... my dad and i used it to build plastic model kits and one drop created a bond so strong that if you glued a piece wrong you were screwed if you wated more than 2 minutes...it spreads out like gasonline does so it runs down the seams and fuses them together.

i realize that you guys that do use it regularly dillute it a whole lot so its not going to glue anyhting together but im not goign to risk the long term effects on rubber gaskets,plastic fuel pump parts, hoses, etc

[JanGeo]

It only attacts certain plastics and those plastics are not used in fuel systems because the gasoline would also attact those plastics.

[kitcar]

Don't forget that the 10% Alcohol in your gasoline is just as if not more corrosive than Acetone. And you're using 4% at most Acetone in the fuel. Granted there have been long term soak tests in 100% Acetone however that's without mixing the gasoline in with it.

As an aside, many vehicles that are in a family of flex fuel vehicles (engine family, vehicle family) usually have the only difference being the ECU and some sensors that detect the E85. Since the fuel system is the same and we know the effects of Alcohol in a fuel system, adding Acetone to one of these vehicles isn't going to matter a whit to the fuel system components even if it isn't a flex-fuel vehicle.

I suspect that you can test it in tank or two of gas without melting your fuel lines. If it does melt them on contact I suspect you might want to consider a higher quality vehicle.

[Red]

Well ran a tankful, MPG difference came out to be 0.4ish MPG. Its no miracle juice, but it seemed to have helped a little. Observations so far are

Starting up after sitting overnight - no more pig rich smell in exhaust
Quieter at cruise and at idle, yet idle speed has no change
Improved throttle response, before it would bog then go, now it just goes
What I thought was a sticky lifter noise seems to have quieted, could have been a dirty injector.
On a certain stretch of freeway quarter throttle would barely hold me at 65, now it inches up to 67ish
If I floor it hard then let off the gas and drop to neutral it will rev up to 1250rpm. Then tach and spedo match needle speed as I slow down

[JanGeo]

whoaw kitcar you never get to 4% acetone more like 0.3125% = 4oz to 10 gallons

Red - sounds like you have a throttle idle controlled by ecu that needs adjusting

[zpiloto]

Curious those that have had success with acetone could you give the % increase in FE. It seems like every one get 2-3 mpg irrelevant to what the base MPG's was.

[Red]

Red - sounds like you have a throttle idle controlled by ecu that needs adjusting

Figured as much, just recently cleaned it too......

[Red]

Curious those that have had success with acetone could you give the % increase in FE. It seems like every one get 2-3 mpg irrelevant to what the base MPG's was.

Mine looks like a 2% increase

[milesgallon.com]

Have anyone tried acetone in diesel?

Simon

[Antoine]

Have anyone tried acetone in diesel?

Simon


I did give it a try last fall and I got improvement of around 8% at regular speed. But this spring I gave it a second test at low speed (hypermiling or HE) and I saw no improvement. I drive a small Smart cdi 800 cc dsl. See this thread :

http://www.gassavers.org/showthread.php?t=3315

[broodlinger]

It just intrigues me how the results can be so different.

Agreed. The user reports for acetone vary from one extreme to the other.

I'm not expecting 35%, but a little octane boost would be worth the price.

[LarryClapp]

I wish it were just that easy...IF it was, than it would be in the gas already...

This same subject is what brought me here...but alas, it cannot ever be better than driving techniques.

HOGWASH- Why would the Big Oil Companies want us to get BETTER mileage? Their only objective is to make as much MONEY as they can!

[dosco]

I have a '99 Camry, 2.2L engine. Tried Acetone in 5 or so tanks, with no measurable results.

[acetone marty]

If you are using acetone make sure it is 99.6% pure less than that will decrease or show no measurable gain. When you use acetone no more than 3 oz per 10 U.S gallons more is not better, my focus is getting best results at 2 to 2.5 ozs,also add 3to 4 ozs xylene and one ounce 100to1 synthetic 2 stroke oil per 10 U.S gallons. I have had very good results with this combo and so have my friends.I put it in my wifes 2000 ford focus and never told her and she gained 77 kms per tank in town driving 427 versus 350 kms. Since i started trying FE mods i have gone from 38 mpg to my latest test on the scangauge 52mpg. Mods are pcv trap,kiker plug wires,modified ngk plugs,max tire inflation and acetone and xylene. The acetone and xylene alone brought me from 38 mpg to 46.

[fallbrookdave]

Tried spreading the good news about Acetone to my friends and got shot down with Snopes.com and cartalk.com reports this is all bogus. I HATE when I get emailed saying "Dave, that's a urban legand" . I don't see how 3oz in 10 Gallons could hurt anything. I will evaluate this and just report back here I guess.

[dosco]

Tried spreading the good news about Acetone to my friends and got shot down with Snopes.com and cartalk.com reports this is all bogus. I HATE when I get emailed saying "Dave, that's a urban legand" . I don't see how 3oz in 10 Gallons could hurt anything. I will evaluate this and just report back here I guess.

I think the consensus is that acetone in gas doesn't result in much *measurable* FE improvement.

[acetone marty]

I havent tried just acetone, so i cant comment if it works by itself but i do know that the combo i mentioned earlier does work. My buddy has a 95 astro van with a 4.3 and that is the only mod he has done he went from 17 mpg to 23 mpg on hwy. The only way to tell is to get a scangauge there is no guessing. If my wife noticed the difference when she fueled up that hey we went further this tank when i never told her what i did, so it cant be contributed to hypermilling techniques it is working. It doesnt seem to work as well on my hemi as my focus. I think cause the hemi eats so much fuel nothing can help.

[dkjones96]

I should see if I can bring my car in our lab for a day on the weekend and run some economy and power tests. I'll use the same method we use for testing our Pulstar plugs only the change would be what's in the fuel(maybe, I've been wanting to run a plug comparison against the Platinum +2s I used to run, but that's mostly for power and part throttle tests, couldn't hurt to get some fuel economy figures too).

I can easily do a normal power run and fuel economy test, add 1oz per 10 gallons and stir the tank, do another power and fuel economy test and continue few more times until I get to 5oz per 10 gallons. It'd be all in the same day and strapped to the dyno the whole time as per normal testing. Our fuel meters also read as little as 1/43,000ths of a gallon so it should be pretty accurate...

[bowtieguy]

dk,

please keep us informed! start a new thread if you're able to do it.:thumbup:

[dkjones96]

I got it approved, just gotta make sure i'm not there alone when i'm doing it.

Makes sense, if i get caught in a roller or something and nobody is there that would suck lol

Where do I get the acetone?

[acetone marty]

You can get the acetone at sally beauty salon i know that is pure, also i contacted the company Reochem they make acetone 99.6% pure i buy it at canadian tire but you wont have that in the U.S, i think home depot sells it also try and get some xylene also they sell it home depot. It will be interesting to see what happens, make sure you purge the fuel lines of the old test fuel before pumping through the next load.

[dkjones96]

Why xylene?

[hvyironfr8dog]

Marty...I had to pay $97 for those exact plans you just published for all to see from the water4gas.com folks and Ozzie Freedom and crew.

While I understand this is a free flow information site, you could have just posted the page regarding his formula for acetone, xylene and Torco GP-7 instead of the whole book. Or you could have posted it before I forked over the $97 a couple of weeks ago.

Whatever...

[acetone marty]

Sorry i found the website the other day googling water for fuel to see what there was and found the website.I didnt even think about a person paying for it as that web site is there for all to see for free. So i removed the link if anyone wants to have it they can find it themselves.

[ZugyNA]

I paid for the water4gas info and it is true that most of it can be found for free on the web...but the details of making the HHO gens and modding sensors is probably worth it....because you actually have to do stuff instead of just reading and talking about it.

Info for diesels and gas.

IMO some of his stuff is off and inaccurate...but that's just my opinion.


The original source as far as acetone?

http://www.brightgreen.us/improve.htm

[AwPhuch]

I have been using acetone in 2 of my vehicles for over a year now

I will say this 1st off...in both trucks (a 1992 Dodge Dakota 318V8 and a 1989 Chevy S-10 2.5L I4) both fuel pumps went bad after approx 3-10 tanks, well the Dodge the motor stopped working, the Chevy the rubber hose between the pump and the plumbing burst...I would equate and almost guarantee both occurrences were due to NOT changing my fuel filter and the acetone emulsifying all the poo in the tank to which it partially clogged up the filter and caused excessive back pressure in the lines, the Dodge pump just quit because it a) was the original from 1992, b) was pumping harder to push the fuel thru the lines, the Chevy blew the rubber hose and stopped pushing fuel in the line.

If you do choose to experiment with acetone...PLEASE change your fuel filter after 2 or 3 tanks or it could cause costly repairs! I will say this..after approx 10 tanks of acetone in the Chevy S-10 the tank inside was PERFECT...no water, no floating poo, NOTHING but clean golden gasoline!

Currently at this time there may be up to 12 different "types" of gasoline on the market driven by region and requirements due to the 1990's Clean Air Act Amendments [http://www.heritage.org/Press/Commentary/ed040606b.cfm] The fuel mixtures are HEAVILY regulated and their chemical makeup is demanded to be precise...thus one company couldn't just slap a 2oz per 10 gallon acetone mixture and go see see ours is better than theirs without getting a HUGE fine slapped on them...so they don't...plus it would cut into their profits as acetone would be another mixture and it would cost them more to make

Acetone is a surfactant, it allows the mist of fuel particles to vaporize more readily, thus instead of fine droplet it can be more of a pure gaseous vapor which is the perfect fuel (hydrogen, propane), pre-heating your fuel also helps vaporization as well..acetone would improve that as well

I notice that my current truck (Chevy S-10) idles more smoothly, has more power, and I get approx 10-15% better gas mileage out of it, but its a truck and the wind resistance is HORRIBLE compared to my old Nissan Sentra that I put acetone in and got a very easy 40ish MPG.

I know that acetone DOES work..but be prepared to change your fuel filter because acetone will clean the tank and the only place it can go is into the filter, be prepared to change your filter ever 10-15 tanks like clockwork otherwise you will get a clogged filter and a damaged/destroyed fuel pump

I put 2oz (approx 1/4 cup) of acetone in my S-10 tank when it hits the 1/4 tank line (it reads off so 1/4 tank is actually 1/8 tank) and I usually put almost EXACTLY 10 gallons in...I will start keeping my fuel history up so you can see the results

Oh the biggest improvement in my vehicles were when I checked the tire pressure religiously..I put EXACTLY 35psi cold, I also found a great additive/runflat product that seems to seal the tires and allows the tire to hold air longer, its called Ride-On (http://www.ride-on.com/) and instead of having to put 1-2 psi a week I can go up to a month before it needs it

Improper tire inflation is the FASTEST killer of fuel economy...PERIOD!

Acetone works!

[fallbrookdave]

Ok in my Junk Grand Cherokee V8 I was getting 16.8 on average with a couple tanks of acetone laced gas. After a staight tank of fresh gas it went back up to 18.7 mpg. Runs smoother too. So Acetone DOES NOT work in my vehicle type. Maybe it's good for you, but not me.

[acetone marty]

Usually when this happens you had too much acetone in your tank to begin with so when you added more gas it diluted the acetone so mileage went up, no more than 3 oz per 10 gallons anymore mileage will go down some vehicles work better on less my focus gets better at 2 to 2.5 oz if i add more mileage drops. Second the quality of acetone is poor has to be 99.6% pure or mileage will decrease, i use reochem from home depot got the whimis paper its 99.6% pure.