Putting Acetone in gas tank to increase fuel economy

[Matt Timion]

Backround: Some claim that a VERY small amount of acetone in the gas tank will increase fuel economy.

EDIT: I removed the link after a rather nasty email from the author of the article. I emailed asking for permission to use his article on this website and his response was less than nice. There was mention of him publishing a book and he repeatedly said "NO." Needless to say, acetone as a gas mileage enhancer can be read about on various sites throughout the internet. Contact the google gods for more information.

Others argue that this claim is ridiculous, and others claim that it will destroy your engine.

I propose we run an experiment to determine if acetone will in fact increase gas mileage as described.

We have heard that the mileage benefit may NOT be noticable until after the first tank of gas. Due to this, we ask that all volunteers do not begin recording their mileage until after you have been through one tank of gas.

5 volunteers are needed. Please reply to this thread if you are interested. Guidelines to be followed are contained in thread How to properly conduct an experiment (http://www.gassavers.org/node/3)

Matt

[SVOboy]

I'll definately work on this one pretty soon, just need to figure out my loops and find a gas station that will help me out by not topping off. Here in New Jersey we don't get that kinda control but I think it can be figured out. I'll start on my second tank running acetone and shoot you the numbers.

[Matt Timion]

I'll definately work on this one pretty soon, just need to figure out my loops and find a gas station that will help me out by not topping off. Here in New Jersey we don't get that kinda control but I think it can be figured out. I'll start on my second tank running acetone and shoot you the numbers.

Very cool. One volunteer down and 4 to go.

[Diemaster]

i would volenter but my pride and joy is also my DD so if somthing went south i'd be fu*ked w/ no transportation for my handicap mom + no way to school. i'm most profeshient in electronics and wiring so i'll help there.

[john galt]

This subject has been covered extensively at
http://groups.yahoo.com/group/pes_acetone/

In general, the smaller and more underpowered the vehicle is the more MPG gain one _might_ get.

replacing OEM spark plug wires with Bosch premium will almost always give better results. OEM plug wires are good for maybe 50K then they start breaking down.

another good forum with lots of archived data is
http://groups.yahoo.com/group/BetterMPG/


there is no magic bullet for significantly increasing MPG, the only thing that really works is driving less and slowing down.

[Matt Timion]

Thanks John. I am hoping that some of the folks at the yahoo groups can migrate over here. We have the ability to more fully customize the layout of this site to suite the needs of all of us wanting better gas mileage.

You said that acetone MIGHT affect gas mileage. Does this mean you have had unfavorable results? If so, please tell us about it.

[john galt]

<p>Compared with yahoo this forum is a slow, cumbersome pain-in-the-*** for anyone on dial-up access, I won't be back.</p><p>As for acetone, yes I tried it in my truck for many months.&nbsp; At first it gave a 3% to 4% increase, but then I replaced the spark plug wires and got a 10% increase.&nbsp; After that, acetone or not had no measureable effect.</p><p>&nbsp;Acetone is mostly a band-aid that masks more significant problems.<br /></p>

[bagpipe goatee]

xml might not be the MOST efficient way of doing things, but it's really easy to manipulate.&nbsp; (if you're even reading this anyway). &nbsp;&nbsp; so, i'd be interested in how acetone changes the chemical makeup, like, does it make it burn evener, or does it clean? &nbsp; &nbsp;

[SVOboy]

Some say it is good because it allows the molecules to vaporize more easily and others say it is just cleaning the injectors making it spray finer. I will test out my next three tanks with acetone and then let it go and see if the benefit (if there is any) stays or goes away, and if some more people share my conclusions then it should be resonably easy to say which side is correct.&nbsp;

[Scorn]

Yesterday I bit the bullet, said "**** it" and dumped 50ml into my gas tank (holding about 7gal at the time). I didnt notice anything at first, but after driving for about 15min, I looked down and realized that my engine temp was down and I was going about 70mph. Next light I raced and completley destroyed a stock silverado in my little 4banger toyota truck. How much it helps? I'm not sure, didnt measure exactly. But it definatley does make a differance. Right now I'm just waiting to see if my fuel lines melt or not, but if they dont, its definatley something worth doing.

[Matt Timion]

Yesterday I bit the bullet, said "**** it" and dumped 50ml into my gas tank (holding about 7gal at the time). I didnt notice anything at first, but after driving for about 15min, I looked down and realized that my engine temp was down and I was going about 70mph. Next light I raced and completley destroyed a stock silverado in my little 4banger toyota truck. How much it helps? I'm not sure, didnt measure exactly. But it definatley does make a differance. Right now I'm just waiting to see if my fuel lines melt or not, but if they dont, its definatley something worth doing.

Thanks for the post Scorn, and welcome to the site.

I have been in contact with a man who has soaked entire fuel lines in pure acetone, and mixtures of acetone and gasoline. He is also putting injectors that are split in half into his mixtures. to determine if acetone affects the internals of the injectors.

As soon as his results are ready I will be posting the results on this website.

[GhostHunter]

Tsikot.Com Acetone/Gasoline Test 2005 (Philippines)

The Car: 1999 Toyota Corolla 1.6 GLi A/T
Typical Milage: 5.5 to 6km/L all city driving with a/c always on.
Typical Destinations: Cubao, Makati, San Juan, Mandaluyong, Manila in the Philippines

Fuel Used: Shell Unleaded (approx 93 octane)
Gas Station: Shell @ Ortigas/Connecticut, San Juan, Metro Manila, Philippines


Status/Results: (as compared to 5.75km/L)

First dose results (60mL per 40L) = 6.44km/L (12% gain in fuel milage)
Second dose results (75mL per 40L) = 6.53km/L (13.56% gain in fuel milage)
Third dose results (90mL per 40L) = 6.05km/L (5.2% gain in fuel milage) *see below
Fourth dose results (90mL per 40L) = 6.1km/L
Fifth dose results (60mL per 40L) = 6.8km/L

April 07, 2005

Today I filled my tank with 60mL of acetone and filled the rest of the fuel tank with Shell Unleaded gasoline.

After half a day and 12km, there was no difference in how the car behaved in starting, accelerating or idling.

April 11, 2005

so far I have used up about 1/4 of my tank of acetone treated gasoline. Typically I get about 60 to 70km at this point with "normal" gasoline. I got slightly over 80km (83km to be exact). That is about a 30% improvement assuming the basis is 65km @ 1/4 tank consumed.

Note: At this point, the "gains" are unofficial because any car's fuel level guage can be relatively inaccurate. The official km/L will be when I fill up my fuel tank again. Based on current consumption, it will be at the end of the week.

April 13, 2005

Given my fuel guage is still above 1/4 line (fuel remaining), I went ahead to fill up my gasoline tank. My trip odometer registered 191.5km while 29.7L of gasoline was filled into my tank. That computes to about 6.44km/L fuel milage. Its an increase but not as much as I was expecting. Given the increase is only 12%, I cannot consider it to prove anything at this point.

When I filled my gas tank, I poured in approx 2.5oz per 10 gallons equivalent of acetone. Maybe a slightly stronger dose will give better results. I'll know in a week's time.

April 19, 2005

Finally, I went back to Shell @ Ortigas Ave to fill up my fuel tank. Current gasoline price is now around P31.50 from about P30.50 per liter. My trip odometer registered 223.9km while 34.3L of gasoline filled my tank. That is 6.53km/L fuel milage.

This time, I poured in the equivalent of 3oz (roughly 90mL) of acetone per 10 gallons gasoline. Hopefully this could get me a bit more milage.

A minor note, the car felt a bit more "energetic" at the 2.5oz dose level. But since its only a "seat of the pants" feeling, I can't really verify any real gains in terms of performance.

I bought my current supply of pure acetone from Unimart in Greenhills. Price is at P12.50 per 120mL plastic bottle.

April 25, 2005

I went back to Shell to fill my talk after nearly a week. Downside, I've been doing a bit more of "hataw" during this tankful, like late last night where I've been doing "Ferrari Tune-Ups". I guess it showed in my gas milage for this week which resulted with 6.05km/L. (I guess watching 2 Fast 2 Furious can have side effects on driving styles on certain people )

I'll try to do another week with 3oz concentration level to get more "accurate" results.

May 04, 2005

This would probably be my last update. Anyway, I've have had two fill-ups since my last update. Kinda weird result for the 90mL per 40L dose since I got a relatively low milage result (6.1km/L) with my normal/typical driving. Just to verify, I added enough acetone to adjust my fuel tank mixture to be around 60mL per 40L ratio (actually slightly over) and resulted in a 6.8km/L milage for that tank full.


May 25, 2005

An epilogue of sorts...

Just to test my car's milage WITHOUT acetone, I have not poured acetone in the last three fill-ups.

My last two full tanks without acetone had a milage of:
5.4 km/L
5.7 km/L


Sept 7, 2005 NEW!

In the quest for even better milage, I have tried increasing my tire pressure from my normal 30 psi to 35 psi on all tires.

My average milage with just acetone is 6.3km/L and I haven't stopped using acetone since the last update.

For my last two fill-ups with tire pressure @ 35psi & acetone (approx 60mL to 40L ratio) resulted in the following:
1st test (Sept 3, 2005): 6.50 km/L
2nd test (Sept 7, 2005): 6.76 km/L

It might be too early to conclude anything (with only two tests) but the early results is a good sign.

[dfoxengr]

id like to try this also.

the general concensus seems to be that theres about 10-12% increase in mileage from what i can see. not bad for the price of acetone.

whoever asked about toluene. i think it was on this thread.
toluene can be purchased at lowes, in the paint section. it is used as a paint thinner, but is also used in gasoline production as well.

certain F1 cars use it almost solely as fuel because of its characteristics.

lots of honda tuners use it as a backyard way to boost octane. there is a website that has the ratio's for what ocatane you will have after addig x fuel, and y toluene. but like someone said you can also calculate by [(gallons of fuel)x(octane rating)+(gal of toluene)x(116 octane)]/total gallons

im pretty sure thats it but correct me if im wrong.

you do not want to go over a 30% toluene mixture however or it could be harmful. so with 10 gal total in the tank, you shouldnt have more than 3 being toluene.

only benefit in toluene would be if you were tuning your car for performance and needed to advance timing more, or had higher compression resulting in knock.

[SVOboy]

I just bought a thing of acetone. 16oz, 100% pure, 3.49 + 6% tax. I'll fill up tomorrow to get the average I'll use for my baseline and add 1 oz. Then I'll go at least three tanks to work it into the system, all at 1 oz per 10 gallons, and then go from there as to increasing and seeing which mixture gives the best results. I'll also be testing on some cars of my friends in the near future.

[dfoxengr]

cool man. make a good graph and overlay your friends results on it as well. make sure to be accurate and precise too.

are nail polish removers 100% acetone?
3.50 for 8 tanks might not be as worth it...

[SVOboy]

No, I had to look especially for 100% acetone nail polish remover, but the drugstore had it so it's not like I had to go multiple places or anything. You can get it at drugstore.com for 2.75 and free shipping for 16oz, but I'll prolly end up just buying a gallon for a lot less.

[diamondlarry]

When I last bought Acetone, I bought a gallon at Wal-Mart for about $12. A gallon last a long time.

[SVOboy]

So hopefully when I buy it at not wal-mart it'll be 15-18.
:-)

[dfoxengr]

yeah and 16 oz at 3.50= 21.9 cents/oz
1gal=129oz at 12$= 9.38 cents/oz
thats more like it.

[SVOboy]

I started my acetone test today, I'm very excited about this. One thing I learned is you should use a container that pours well. My acetone jar poured like crap (into a medicine measuring thing I used to make one ounce) and I got a lot on my hands, haha. I'll just funnel the acetone into a different container.

First three tanks will be "break in" tanks where I will use 1 oz of acetone per 10 gallons of gas. The fourth tank I will assume the acetone is all mixed up and working, and use that for a number. Then I'll go up to two and three doing something similar, unless I do two and three at the same time with a few of my friends. My baseline number will be 38.5 mpg (all city/suburban < 50 mph), and we'll see where that goes to.

[squala]

Some tips on putting acetone:

1. Using something like a graduated cylinder or test tube to pour acetone is a good idea.

2. Always be careful of spilling on your car paint - it will definitely corrode with the finish.

3. As much as possible, try putting acetone when your engine is still cold to prevent any premature evaporation.

[Flatland2D]

Now that I've finished the tire pressure trials I'll be starting with acetone. I will be adding some soon (tonight or tomorrow) and will probably do a test run within a few days to see if there's any inital improvement. It has been reported that it takes up to three tanks to reach full effect, so I'll be conducting trials and tracking results as the acetone is taking effect.

I bought some science supplies to accurately measure the acetone. The large pipette is for getting precise amounts of acetone from the container to the test tube or specimen sample jar and possibly to inject the acetone right into the tank. The test tube has 0.5mL degradations for small accurate measurements, mostly for when topping off and I only need to add a minute amount to keep the ratio. The larger specimen jar is for adding enough acetone to mix with a full tank of gas. I will be using 1.5oz acetone per 10 gallons of gas. That is roughly 44.4mL.

I hope there's more to write about this experiment than the tire pressure experiment.

<img src="http://www.morlinos.com/delsol/acetone.jpg">

I didn't see anywhere on the can that says it's 100% pure acetone, but I'm guessing it's good stuff. I got it for under $5 at Wal-Mart. This is enough to mix with 213 gallons of gas or about 7,500 miles for my car.

[Flatland2D]

Just read a nice piece of information concerning acetone and how long it takes to take effect. Apparently the reason it takes a few tanks to work at its full potential is because the ECU is relearning the mixture. Disconnecting the battery (negative lead) for a few minutes will reset the ECU and it will immediately start learning the new mix next start-up. I plan on doing this before my acetone trials. I will drive around for about a day so the ECU can relearn with acetone, then I will conduct the first trial. Just thought I'd mention this to those participating. Hopefully it will speed up the results.

[Matt Timion]

Good call on resetting the ECU.

I plan on testing acetone on the trip down to vegas. I will drive to vegas without acetone (nearly 400 miles) and then drive back with acetone. There is a problem with the fact that I'll be going downhill one way, and uphill another way. Perhaps I'll monitor RPMs as well to determine a ratio and figure it out that way.

[dfoxengr]

youre using 6oz/10gal gasoline?

if you only use 2 oz/10 gal, then itll last you 640 gallons.

[Flatland2D]

No. If you do the math right you get:

(32 oz. / 1.5 oz.) * 10 gallons = 213 gallons

[dfoxengr]

thought you said a gallon (128 oz)


hammer on me

[SVOboy]

This is how I reset my ECU:
http://www.filefarmer.com/cruisur/DSC02529.jpg
Just pulled that fuse you don't see there.

[Matt Timion]

On the way down to vegas from SLC I had 42mpg. This was without acetone, and with the A/C on most of the time.

On the way back to Salt Lake City my mpg was 37. This is with acetone and without A/C.

At first glance it looks like acetone hurt gas mileage. It may have, but I'm not totally convinced. This is mainly b/c the trip down to vegas is a very slight decline. The trip back to Salt lake City is a very slight incline. On both trips my target speed was 65mph at 3000rpm.

For some comparison, my last trip from Vegas to Salt Lake City yielded 33 miles per gallon. Since then my oil has switched to synthetic and my transmission fluid was changed, so too many variables have been introduced to determine if my mileage boost was due to acetone or not.

Looks like I'll have to plan a second trip (this time, somewhere flat) to determine the effects.

Wendover, NV seems to be the most logical choice.

[SVOboy]

On my first tank with 1 oz per 10 gallons I went up from my baseline of 38.5 to 41.7, so that's good, I'll run another tank to be sure, and then begin increasing stuff bit by bit.

[SVOboy]

I'll have my official one oz per 10 gallon results tomorrow, and I've got a strong feeling they'll suck terribly, so I'ma forego acetone and try IAT, then tires prolly (cuz I wanna have it done so I can keep using them) and then I'll revisit with a stronger concentration.

[SVOboy]

Here are my results for 1 oz of acetone per 10 gallons. I ran three tanks, but I tossed the first one due to bad alignment.

The next two gave me these totals:

346.3 miles
9.039 gallons
38.3 mpg
.2 mpg loss

I will try a 3 oz concentration sometime later, but right now I'm trying the IAT mod, the car had a funny smell this morning, so I dunno if it is that or what, I dunno, car seems to run fine, anyone else with a b2 wanna try it real quick and tell me what it does? I'm using 110ohms, I might use some more ohms if I decide I want to take it down from like 220 degress to 150 or something, if I'm thinking it is not running the best.

[SVOboy]

Started 3 ounces/ ten gallons today.

[Matt Timion]

I'm beginning to wonder if acetone only works on dirty inefficient carborated cars and not little fuel injected cars like ours. perhaps our vehicles are already too efficient for there to be much room to grow..

[SVOboy]

Too efficient my ***. Someone on here has an si that gets 40+ mpgs. DPFI is in no way efficient, damn these things, I swear, I've seen stats from lots of stuff loving acetone, look to larry! There is hope, I am only one testor.

[Matt Timion]

Too efficient my ***. Someone on here has an si that gets 40+ mpgs. DPFI is in no way efficient, damn these things, I swear, I've seen stats from lots of stuff loving acetone, look to larry! There is hope, I am only one testor.

you make a good point. the DPFI might actually be counter-productive with a lot of these mods. Since honda was the only one who made a crappy DPFI system, no one else has to deal with the "technology."

DieMaster got a huge MPG boost after swapping to MPFI. As we both know, MPFI is way more tunable than DPFI as well. Maybe after the MPFI swap things will start looking up.

[TheSSG]

9/09 43.76mpg, conservative driving

1oz Acetone, conservative driving
9/21 329.2 miles
6.995 gallons
47.062187 mpg

2oz Acetone, aggressive driving
9/28 311 miles
7.286 gallons
42.68460 mpg

No Acetone, Aggressive driving
10/6
259.8 miles
6.198 gallons
41.91674 mpg

there are my results....

I've meant to post them up awhile ago...

[SVOboy]

What model crx do you own?

[n0rt0npr0]

Seeing this leads me to believe that maybe some ECM's take a bit longer to calibrate to acetone in fuel...

2001 Chevy suburban
90k+ miles
used a scan gauge computer that plugs into diagnostic port for hard numbers.
I also live on a mountain so that is why the numbers are low
using dino oil and no ethanol in gas
using 89 octane rated gas from the same pump at the same exxon at the approximate same time of day

before acetone mpg per tank
11.2

After acetone
1st tank 13.2 (2 oz per 10 gallons of gas)
2nd tank 13.6 (3 oz per 10 gallons of gas)
3rd Tank 13.8 (3 oz per 10 gallons of gas)
4th tank 13.3 (emergency bat out of he** driving up a mountain)
5th tank 14.1 mpg (3oz per 10 gallons of gas)

I just caught this on a general forum...I asked the driver to join this one. No reply.

[SVOboy]

Generally I just unplug my ecu for a night after I do something like acetone so it resets, then I have the least possible time. It could also be the whatev cleaning of the acetone having its effect.

[The_Head]

on my 1997 Yamaha YZF1000R and 1987 Acura Integra, and have seen about a 8-10% increase in fuel mileage. I haven't tried it for long enough to know if it was just a natural variation due to driving habits or conditions, or if the Acetone actually made a difference.

[JanGeo]

Hey guys wouldn't it be funny that the initial improvement is caused by plastics in the fuel disolving and burning in the engine adding to the fuel content and once the "loose" plastic is gone the effect is reduced!

I just came back from a trip out to Cape Cod and back to pick up a friend - the guy that drove me to the dealer to get my xB. I didn't run any acetone in this tank just the 3cc GP-7 but got 40.6 mpg today 190 miles. Will get used to the ScanGauge recalibration readings and then on the next tank put in 3oz per 10 gallons and the 3cc GP-7 and see what happens - by then I should be on a trip to Stamford CT - more highway.

[chesspirate]

Hey guys wouldn't it be funny that the initial improvement is caused by plastics in the fuel disolving and burning in the engine adding to the fuel content and once the "loose" plastic is gone the effect is reduced!

Not even close to funny... seriously, would plastic add value to the fuel?

[SVOboy]

Plastic doesn't burn very well from my experience, and it also burns with lots of poisonous qualities.

So, yeah.

[JanGeo]

maybe it only disolves small molecules of the plastic...the acetone I had in the stp bottle turned a little yellow as it disolved the plastic - burned with a yellow blue flame when lit.

Another thing is my brother works on two stroke bikes and says the Torco oil doesn't burn - it comes out the exhost as oil - pours out from the muffler and pipes on bikes he repairs - so maybe it really helps to lubricate the top end really well - which would be a good thing.

[n0rt0npr0]

I've completed 6 tanks of acetone added now, and when I stopped the acetone additions my engine would knock like crazy on a cold startup. So bad it even threw a code for the knock sensor. I reset the ECU and its perfectly normal now but I am thinking that acetone really does add octane? Anyone have any thoughts?

My results were a .53MPG gain over last years base fuel economy.
Having a tough time concluding one way or another on this.

December 04
22.25mpg
Total Precipitation: 3.25"
Average Temperature: 29.2ºF
Average humidity: 72%
Average windspeed: 4.2mph
Highest Temp: 58.7ºF
Lowest Temp: -2.4ºF

December 05
22.78mpg
Total Precipitation: 1.7"
Average Temperature: 26.6ºF
Average humidity: 74.6%
Average Windspeed: 3.1mph
Highest Temp: 41.5ºF
Lowest Temp: 5.8ºF


What would be awesome is if there was an easy way to automatically datalog exactly when the 0BD1 vehicle was in use during the month, and then just average up the weather values from those timeslots.

[JanGeo]

Well I didn't add any this tank filling and it seems to start a little harder - just turned 2000 miles on the xB yesterday on a trip to Cape Cod - I still get Calibrated ScanGauge 42.6mpg on my test ride around Ocean Drive 12 miles cold start but I am still using the Torco 3cc per 10 gallons. Of course I am getting some outragious MPG on this beast - way more than I expected. Hope a little Slick 50 engine treatment will bring it up a little more but that has to wait for the oil change at 3750 miles. After this tank - maybe I will fill up at half a tank I will add 3 oz and see what happens now that I know what to expect on the ScanGauge for Highway miles and local driving. FYI going more than 60mph starts to drop the mileage a little. Best is around 20-25mph in 5th or 4th gear at about 50-55 mpg - this engine is a m a z i n g!

Only thing I could think could affect the knocking is the gas not keeping the big and small hydrocarbons together and thus effectively modifying the octane (lower) as the smaller molecules ignite first and fast but the Torco is supposed to be taking care of that. Or maybe the fuel is not vaporizing as well and hitting the intake surfaces and heating more or washing away the lubrication.

[SVOboy]

Make sure to document well this slick50 stuff, I'm a skeptic but it'd be nice to not be anymore, :p

Will you use slick50 or xcel plus?

[JanGeo]

No need to document it I know it works - but the gas log will show how well it works. I have used it before and I have a bottle of the engine treatment already to go. Wallymart $11 pour and drive concentrate. Supposed to be good for 12,000 miles - not like in the old days when it was good for 50k. Xcel Plus may be next, problem is the small sizes are all out of stock on line and the shipping is now a killer for a lot of stuff. Tufoil is a repeat application so you have to keep putting it in for the moly and TPFE. It may pay for itself but getting the service guy at the dealer to leave out a quart may be a little tricky.

[JanGeo]

Saw this posting in pes_acetone group . . . interesting!

Date: Sat Feb 18, 2006 1:39 am
Subject: Acetone in B-12 Chemtool
Posted by: shinycars14

Today I saw it mentioned that Acetone is an ingredient in B-12 Chemtool, so I looked up some MSDS's at Berryman's (B12) website. I'm noticed that Acetone is in many of their products. I'm a layman probably like most people here, and read that B-12 is a "strong" product. For safety purposes at the low percentages we are using (2-3 oz to 1280 oz of fuel) I don't think it should be a problem. Also I believe the original Acetone website mentioned using 3-4 tanks with Acetone followed by 1 tank without Acetone. Here's a list of Berryman's products with the percentage of Acetone in each.

Berryman's Products MSDS
http://www.berrymanproducts.com/Default.aspx?tabid=120

FUEL SYSTEM TREATMENT - 5-15% Acetone - Part# 4016
B-12 CHEMTOOL CARBURETOR CHOKE CLEANER - 20-30% Acetone - #0101,
0105, 0116, 0155
B-12 CHEMTOOL - 20-30% Acetone - #0216
PREMIUM GAS TREATMENT - 15-20% Acetone - #8016
CHEMTOOL AIR-INTAKE CLEANER (STEP 1) - 50-60% Acetone - #2630-1
CHEMTOOL COMBUSTION CHAMBER CLEANER (STEP 2)-less than 3% Acetone - #2630-2
CHEMTOOL FUEL SYSTEM CLEANER (STEP 3) - 5-15% Acetone - #2630-3
NITRO POWER BOOSTER ("STREET") - 5-15% Acetone - #1513
MMT OCTANE BOOST ("OFF-ROAD") - 5-15% Acetone - #1516
SILICONE SPRAY (AEROSOL) - 20-30% Acetone - #1716
FUEL INJECTOR AIR-INTAKE CLEANER (AEROSOL) - 50-60% Acetone - #2209
TOTAL COMBUSTION SYSTEM CLEAN-UP - less than 3% Acetone - #2610
TOTAL FUEL SYSTEM CLEANUP - 5-15% Acetone - #2616

Normal Acetone Use %:
2oz per 10 gal= .00156
3oz per 10 gal= .00234

[SVOboy]

Yep, the b12 stuff has it, I've known for a while but never thought to post up about it. My latest acetone tests screwed me again so I'm gonna try after I swap injection systems.

[JanGeo]

From: jerry freedomev <freedomev@...>
Date: Wed Feb 22, 2006 5:20 am
Subject: Re: [maxmpg] Acetone - spiking freedomev

Hi Francois and All,

Acetone spiking is a load as gasoline already has a fair amount of it in it made during the refining process or in oil naturally.

Also on another list they experimented with it and nothing improved.

HTH's,
Jerry Dycus

---------------------------------------------------------------------
This from a guy that is building plywood cars powered by e-Tek motors. So anyone think that Acetone doesn't work and that it is already in Gasoline??

[n0rt0npr0]

Spent this morning re-reading some good sites on acetone and octane...

Acetone is 150 octane, by the way. That explains why my engine knocked to all hell after I did not replace the acetone which I had been using for 6 tanks. I HAD TO reset the ECM to stop the knocking!

so lets see..first off, I will tell you that IF your engine does NOT have a knock sensor, you will not get any improvements from acetone.

Second, since it adds octane, you MIGHT NOT see any improvement in MPG's UNLESS you are indeed a spirited driver. The more conservative you are (like Dan, and SVO) the less benefit you will see. If any...

I tried it, yah I seen mpg from it...but inconclusive mileage benefits. I didn't use the same pump, ect

Third, Acetone is a cleaner...in fact its in most throttle body, top engine and carburator cleaners. If your system WAS dirty, it probably adversely affected MPG's....if you are seeing an increase in mpg's...it could be from the mild cleaning that the acetone is doing. You would really think that acetone would not affect fuel at that small of an amount, but if you have ever seen some drops of acetone fall through 50ml of gasoline and how cloudy the whole thing becomes after the acetone mixes....!

Also since I've done the mower testing and have had that 200ml fill where I let 50ml of fuel sit in an open container subjected to 2 hours of evaporation...That run lasted 2.44% longer than the average run! What happened esentially is that evaporated fuel became premium "like" fuel. It became more dense. And it lasted longer. That's a characteristic of Premium...its more dense.
That and acetone at the 1oz to 10 gallon ratio really didn't do **** in the mower experiment I'm conducting.

lol, more testing needed.

Good read on premium fuels btw... (http://www.fuelsaving.info/fuels.htm)
read the whole damn site if you get the chance!

[JanGeo]

Also since I've done the mower testing and have had that 200ml fill where I let 50ml of fuel sit in an open container subjected to 2 hours of evaporation...

Hummm . . . sounds like buying gasoline when the gas station tank is almost empty might get some higher density fuel and better gas mileage!!

[SVOboy]

Second, since it adds octane, you MIGHT NOT see any improvement in MPG's UNLESS you are indeed a spirited driver. The more conservative you are (like Dan, and SVO)

Yay for me, mwahaha. Anyway, I forgot what I was gonna see. We need something with a scangauge or superMID to test this.

[n0rt0npr0]

If this were true, and them underground tanks vented that much off...then my niehborhood would smell a helluva lot worse than it does, seeing that I live 1000 feet downwind from a station! Yeah no way that an underground almost empty tank would have evaporated enough to create a benefit of fuel economy for you and I.

The EPA would not let "in tank" evaporation like you are talking happen. Thats the whole reason why the winter and summer blends exist in the first place...

[JanGeo]

Well it doesn't have to leave the tank to leave the fuel - when the tank is almost empty it has a lot of air in it that can absorb a lot of the more volatile components and then that vents into the tanker truck or through a filter trapping the fumes when the tank get filled but they probably are not in the fuel anymore.

I wonder if the milky acetone reaction was from moisture in the acetone seperating from it when mixed with the gasoline?

[n0rt0npr0]

yeah, good point on the air in the tank just absorbing those fumes. So maybe by a fraction of a percent does that air in that tank absorb the volatile fumes and make that fuel more dense. I still think that fact is so minute, that it would be undetectable. Maybe not...very very complicated to really know for sure.

[JanGeo]

Lawnmower testing time!!!

[tomauto]

I did a little test of my own before I came to this website and published it to Honda-Tech. They pretty much said that my trip was too short. (even though it was the same route and I drove the same) - I can show you my report if you want to see it. But they basically said that it would rot the fuel system and that the pumps have a high rate of error.

I still have the same tank of gas right now. I just haven't been driving. Should I fill the tank up now to get a more definate (200 mile) answer? What might have killed the test is one night I got a little throttle happy, so...it might have killed any gains.

[Matt Timion]

I did a little test of my own before I came to this website and published it to Honda-Tech. They pretty much said that my trip was too short. (even though it was the same route and I drove the same) - I can show you my report if you want to see it. But they basically said that it would rot the fuel system and that the pumps have a high rate of error.

I still have the same tank of gas right now. I just haven't been driving. Should I fill the tank up now to get a more definate (200 mile) answer? What might have killed the test is one night I got a little throttle happy, so...it might have killed any gains.

The 'rotting the fuel lines' comment is kinda old. I've yet to see any evidence of it really happening.

I've also yet to see much conclusive evidence of acetone working. Lots of anecdotal evidence, but nothing concrete.

I think the best way to test this is to either use a few tanks on the same trip, which takes lots of dedication.

Another possible way would be to use a scangauge or a SuperMID to look for instant fuel savings.

[tomauto]

I dont know if I am ready to buy a scangauge yet. I dont really want to plunk down the money for it. How much cheaper is the SuperMID?

[krousdb]

I dont know if I am ready to buy a scangauge yet. I dont really want to plunk down the money for it. How much cheaper is the SuperMID?

Scanguage it cheaper.

The first 4 tanks in my gaslog are with acetone, 3 oz per 10 gals. The rest are without. One could argue that the acetone had a negative effect. At the very least I would say that it had absolutely no effect.

[JanGeo]

was that with some pure acetone and do you have ethanol in the gas that you are pumping?? Maybe you should try it again and see if it was cleaning out the junk in your fuel system before you write it off.

[cheapybob]

All gas is going to have ethanol from now on so you might as well be sure whatever additives you might use are effective with the new formulation.

[cheapybob]

Spent this morning re-reading some good sites on acetone and octane...

Acetone is 150 octane, by the way. That explains why my engine knocked to all hell after I did not replace the acetone which I had been using for 6 tanks. I HAD TO reset the ECM to stop the knocking!
...........snip..............


If you do the numbers with 10 gal = 1280 oz x 87 + 1 oz x 150 / 1281 oz total, you'll get the revised octane value.

GM OBD II PCM's automatically reset octane settings anytime the tank is refilled, I read somewhere years ago. I want to say it reset if 8 gal was added. That was for a Firebird or Trans Am. Not sure if thats for all.

[n0rt0npr0]

Wait maybe the right way to calculate that would be to replace 1280 with what would actually fit in the tank after you added acetone. So in your equation it would be 1279oz.

And in my real-world equation it would be 1276oz so: 1276 x 87 = 111012. 4oz x 150 = 600. 600 + 111012 = 111612 / 1280 = 87.2 octane
Guess my engine and OBDI computer is sensitive to slight change of octane and whatever else acetone does...

On the OBDII comment, I remember reading that same thing a while back. I'm looking to have enough money saved for an OBDII vehicle by the end of next year:D

[cheapybob]

Wait maybe the right way to calculate that would be to replace 1280 with what would actually fit in the tank after you added acetone. So in your equation it would be 1279oz.

And in my real-world equation it would be 1276oz so: 1276 x 87 = 111012. 4oz x 150 = 600. 600 + 111012 = 111612 / 1280 = 87.2 octane
Guess my engine and OBDI computer is sensitive to slight change of octane and whatever else acetone does...

On the OBDII comment, I remember reading that same thing a while back. I'm looking to have enough money saved for an OBDII vehicle by the end of next year:D

My guess would be that the octane of the fuel you bought this latest time might have been lower than what you'd bought the previous tankfull. My Trans Am with its 5.7L OBD II LS1 V8 can run on 87 from here in Chicago, Pittsburgh, or Detroit just fine, but when I filled it with 87 up in Canada it FREAKED OUT. Luckily I carried a couple bottles of 104 octane booster with me, and as soon as I dumped them in, it ran fine.

[n0rt0npr0]

Ya I think you may be on to something, that latest tank would have been Citgo. I was testing Acetone with Shell fuels and then when I stopped, Citgo had ten cent lower prices and I filled up. Yucky Citgo.

[cheapybob]

When I'm done with mods I'll try some acetone at 3 oz/10 gal and GP-7 at 3/4 oz/10 gal if I can ever find any GP-7 without needing to pay an arm and leg for it due to shipping, etc. Very few places seem to carry the stuff. I see no point trying toulene as its cheaper to just buy higher octane fuel if all you want octane booster.

I hope you guys don't just pour the additives in the tank. When using additives, I've been told its best to put the additive into a fuel jug, then pump the gas into it and mix it up good, then pour it into the tank so that you are sure it gets mixed in well.

[benhuey]

I have tried different amounts of acetone anywhere from 2-4 oz/ 10 gallons. For my car the acetone helps, but less seems to be more. i have gotten my best results so far at around 2 oz per 10 gal. Maybe even a little less will do better??

[krousdb]

was that with some pure acetone and do you have ethanol in the gas that you are pumping?? Maybe you should try it again and see if it was cleaning out the junk in your fuel system before you write it off.

Pure acetone, pure gasoline, no ethanol. My car had only 42k miles on it at the time and the engine/fuel system was clean to begin with. I think 2000 miles is enough to determine that there is no benefit in my case.

[JanGeo]

Yeah it is supposed to help atomize the fuel but I have heard that it doesn't help honda engines much if at all, possibly because they have the fuel vaporization working as well as possible already.

[thisisntjared]

see honda was smart. they said, "who wants to put acetone in their tank?" another said, "yea that would be annoying" so they agreed "hey lets just make our cars totally freaking sweet so nobody has to put acetone in them" :lol:

[tomauto]

The only way I can really see its use now is if you had a mistreated engine, and it restored to near factory. So, on a not very well taken care of car.

[Matt Timion]

Yeah it is supposed to help atomize the fuel but I have heard that it doesn't help honda engines much if at all, possibly because they have the fuel vaporization working as well as possible already.

Hmm... "atomize fuel"...

Not really buying that explanation.

Also, Honda doesn't do anything special to vaporize their fuel, unless you consider Honda fuel injectors to be any different than the rest.

[JanGeo]

Yeah injectors and the turbulance in the intake and combustion chamber - remember the acetone is just supposed to lower surface tension of the gas and allow smaller droplets of fuel thus it will evaporate faster.

[zpiloto]

I been using acetone with varing strength from 1-3 oz/10 gallons and it is inconculsive for me. The reason I continued to run it is for it supposed cleaning properties. Don't alot of the fuel system cleaners have a good percentage of acetone? I'm going to stop all fuel additives once my gas log peaks and see what happens then.

[SVOboy]

Yeah injectors and the turbulance in the intake and combustion chamber

Well, the injectors are nothing special, they're swappable with lotsa other stuff.

Also the only special stuff I have seen honda do for turbulence was on the vx, being really madly dished pistons.

[JanGeo]

What you need to look at is the combustion chamber and piston top at TDC and see if there is a squish area - that is what causes turbulance in the cylinder as the piston gets to the top of the compression stroke and makes the gases swirl around in the head.

I shot some Torco into the filler spout before heading to the gas station last sunday and then didn't gas up - I checked in the filler spout a few days later and saw white bumpy stuff looked like sand in the spout but it was soft. I think the oil and PIB seperated due to lack of fuel washing it down into the tank.

[cheapybob]

Mix it real good with a couple gallons of gas and THEN pour it down the spout.

What's going to happen when a big glob of it gets sucked into the fuel line and up to the filter? Want me to guess, or do you want to tell us when it happens?

[JanGeo]

Usually I add a bunch of gas after I squirt it in but this time I passed by the high price gas and only ended up going back and getting it there anyway . . . ahhh the price we pay for scientific consistancy . . . same pump for every fillup. I shot some into a little gas one time and it dispersed really quickly - it should it is made to mix with gas as it is two stroke oil. The idea is to NOT have to handle gasoline at all - the fumes have a habbit of lingering around forever.

[badgett]

I have used Acetone for a year now in my dodge neon. It gave me 6 more mpg's. It has not had any bad effects on my engine. It does help once you figure out how much to use. For my car it's 2 oz. per 10 gallons. To much will decrease FE. You have to play around with the mixture to see what helps your car. For me , over 3 oz. makes my mpg fall. It will not hurt the engine to use too much. It actually runs much better but you will lose FE. It depends on how efficent your engine is allready. It will greatly help a carb. engine but if you have a DOHC 16valve 4 banger it doesn't help much because your engine burns pretty efficently allready.

[Matt Timion]

The Mythbusters episode where they tested acetone was on again last night. I had never watched before, so I really enjoyed it :)

[JanGeo]

Yeah I saw it too - really disapointing because they fed it to a gas hungry V8 on a dyno that was carburated and then a BMW Fuel Injected gas monster too. Like I said it works best at light throttle when the fuel usually doesn't vaporize well. The hydrogen test was pretty funny - ya think they are working for the oil companies MAYBE???

[MetroMPG]

Like I said it works best at light throttle when the fuel usually doesn't vaporize well.

Why doesn't fuel vapourize well at light throttle?

[JanGeo]

Because there is a really short spurt of it being injected into a small amount of air and then it tries to ignite it way before tdc under lower pressure in a larger volume (before top dead center the combustion chamber is not fully compressed yet) so little heating and mixing from compression has occured yet. Also a much smaller in rush of air is being used at light throttle vs wide open. Short injection pulse means only some of the passing air got fuel sprayed into it and the rest of the air is lean.

[MetroMPG]

I still don't buy it.

First - it appears that a well tuned car produces fewer unburnt hydrocarbons at idle than at speed, which suggests that combustion completion under light loads is actually better.

http://www.gassavers.org/showthread.php?t=2324&highlight=post

Second, gasoline should vaporize more readily in the partial vacuum of light engine loads compared to higher loads because its boiling point decreases as pressure drops.

Lastly, do you have info about the surface tension of acetone vs hydrocarbons? I saw one reference (can't find it now, of course) that showed acetone's was actually slightly higher.

[scostanz]

This probably won't add much to this conversation, but I tried acetone for about 3000 miles a couple of years ago and saw absolutely no effect at all. I drive the same route every day and use my cruise control set at virually the same speed so the only variables should be weather conditions and variances in topping off of the tank during fueling. I just went back over my data from that time period and I don't see anything that stands out. Based on all the claims surrounding this issue, I should have noticed something. My methods aren't very scientific, but with the way I use my vehicle, acetone is a waste of money for me.

-- Scott

[omgwtfbyobbq]

First - it appears that a well tuned car produces fewer unburnt hydrocarbons at idle than at speed, which suggests that combustion completion under light loads is actually better.

http://www.gassavers.org/showthread.php?t=2324&highlight=post

Maybe, maybe not. It depends on catalytic converter operation... Which probably isn't consistent imo. What'd be cool is if someone could convince a tech to measure pre cat... :thumbup:

[ELF]

Speed Evaporation Rate
(BuAc = 1.0) Examples
Fast > 3.0 Methyl Ethyl Ketone = 3.8
Acetone = 5.6
Hexane = 8.3.
Medium 0.8 to 3.0 95% Ethyl Alcohol = 1.4
Naphtha = 1.4
Slow < 0.8 Xylene = 0.6
Isobutyl Alcohol = 0.6
Water = 0.3
Mineral Spirits = 0.1

If you look at this you will notice that acetone's evap rate is slower than hexane. gasoline contains quite a bit of hexane. So I'm not sure what acetone is supposed to do if it's evap rate is slower than gas? I know it works in some cars and not in others.
Some of you guys mentioned that you need gas without ethanol for it to work? It would seem it evaporates faster than Eth. So in theory it should work better in gas with ethanol?

[zpiloto]

Gas has 35-40 % aromatics so adding 2oz per 10 gallons is suppose help it how. What concentration is that .15% and that suppose to help vaporization. I can see it cleaning out the crud on a high time engine but thats only going to help until it's clean and then it won't make any difference.
I've tried this in 3 cars, one of which was a blind test. Zipp, nada, nothing on all accounts. I guess that's why the gas pill and increase mileage formulas make money because there is always someone that will get an increase in FE.:p YMMV

[MetroMPG]

Maybe, maybe not. It depends on catalytic converter operation... Which probably isn't consistent imo. What'd be cool is if someone could convince a tech to measure pre cat... :thumbup:
Yes that would be cool.

As for cat operation, I agree it's not consistent: you'd think it would be performing better at higher engine loads (hotter). Which makes the low unburnt HC reading at idle/low load that much more interesting.

[omgwtfbyobbq]

Would idle versus 40km/hr really make that much of a difference if the cat was already warmed up according to the ECU's warm-up tables? Which it should be before the test. To elaborate, the cat should already be at optimum operating temp once the car is warmed up, any increase in temp may help out cat operation a bit, but probably not much. I'm guessing that the increase in HCs comes from greater exhaust/HC density, so the cat may not be able to knock down as many HCs when there are more of them per unit time flowing through it.

[RunningOnFumes]

Here's a link I found with compilations of results in different makes using acetone . Apologies if it's already been posted .

http://peswiki.com/index.php/Directory:Acetone_as_a_Fuel_Additive

[SVOboy]

It's unfortunate that the peswiki has an obvious bias in stating the facts, which is probably why people like me, who saw a decrease, don't even post reports there.

[Zoticus]

I'd try it on a weed eater or mower but certainly not my vehicle that I depend on. I can see how running a small amount thru your system would help clean it out, but I would not suggest this as a mileage booster or for anyone to use it on a regular basis.

My question however is, Is there another formula/chemical that could produce such an effect that would not be a threat of damage?

I know some vehicles run like crap and knock pretty bad if they don't run high octane fuel, but I've seen some run better on the most rotgut gas you can get (without water contamination) then if you run the best stuff.

I would not advice anyone trying this unless you actually have a car that you don't care about or need to depend on to get you to work daily. Testing is all good, but remember don't always believe everything to hear or read. I could boast that this acetone myth is giving me 97 mpg and no mechanical problems for the last 5 years, but wheres my proof? Posting without some sort of way to PROVE it actually works and I am not talking about these silly videos you see on youtube etc does not mean anything!

[ma4t]

I'm not seeing any improvement with Acetone. The best mod to date is learning to drive like a hypermiler. Now I have a year's supply of nail polish remover! Yeah!

Maybe I'll give it to the lady in the mall that runs the fingernail store.

[JanGeo]

Try 3 oz to 10 gallons but in a vehicle that gets that low a mileage it may not help much because you are probably burning at idle what a vehicle that it does help burns at 30-40 mph. I see it helping more at really low speeds when there is not a lot of fuel being injected and helping it vaporize with such small squirts makes a difference.
What did you end up paying for it?

[ma4t]

Try 3 oz to 10 gallons but in a vehicle that gets that low a mileage it may not help much because you are probably burning at idle what a vehicle that it does help burns at 30-40 mph. I see it helping more at really low speeds when there is not a lot of fuel being injected and helping it vaporize with such small squirts makes a difference.
What did you end up paying for it?
If you were addressing me, I paid about 7 or 8 bucks for it. I'm just joking about giving it away. I'll probably use it periodically because it seems to keep the engine running smoothly. I'm going to try using it as charcoal starter fluid. If it makes the food taste bad, I'm switching right back to lighter fluid. :D

m

[cugir321]

I've tried it in my toyota tercel...seemed to give me about 1-2 mpg. One thing I do know. Acetone softens plastic parts. There's a great tip for epoxying a door handle. Use a Q-tip with acetone on the parts you want to glue. Let it sit for about 10 minutes. It softens the plastic so the epoxy takes. I tried putting together my toyota door handle and the plastic would not bond....after acetone. Perfect! Never broke free again. Use it on the non-glueable plastics. I stopped using acetone in my car after that.

[Roadkill]

If your going to try the Acetone testing I say get a long funnel so none of the acetone will get on your cars finnish. get a mesureing glass from Walmart or some cooking store. (glass or metal) I myself have a complet cook book I use for a fuel mod and I get around 40 mpg in my toyota corolla with a 5 sp trans.

[Roadkill]

I have been doing this fuel mod for about 3 years and I have 125000 on this care with no problems to the fuel system or injectors.
Im you wish to E-mail me pleast put the word Aceton in the subject heading so I will not deleat it with all of the juck mail my Yahoo account get from day to day.

Also hope ya do not mind my bad spelling, Never was much good at it.

[getnpsi]

the first tank in my "garage" had 3 oz of acetone in it. My fuel tank is rather small but I wanted to introduce it for its cleaning properties before anything else. This was one neglected lil car. Anyway after the first treatment the tanks after did not. I have even done a tuneup, added a few a basic aero's and cleaned components since the first tank and the mpg's have not gotten any better. My routes are NOT the same so you all can rip me apart but this tank I'm burning up now DOES have acetone so 4 tanks will have little left vs this new dose which might show something. I would not go purchase acetone looking for gains, id get 2 gallons of premium fuel that is high detergent...but since I had half a container sitting here for plastic hobbies I went for it.

I'd love to see an emissions profile for a non catted car, and then introduce acetone.

[theholycow]

I'd like to find some actual numeric data on the amount of detergent in various gasolines from various vendors. I suspect that most use the same amount of detergents in all their octanes.

However, if you're really concerned about getting enough detergent, you should just buy the octane level your car recommends at a Top Tier Gas vendor. See http://www.toptiergas.com for the list.

As for me, I'll purposely run some cleaner through the system on occasion, but in the meantime I'd rather be burning gas than detergent, so I don't mind if my gas has less detergent. I doubt detergent is a very efficient fuel.

The "Premium" label is just great marketing, since it makes people think that it's better than "Regular" when really it's just specified to avoid knock at higher compression ratios. It would be like selling Load Range E tires as "Premium", where the difference is that they can take higher pressure and therefore can carry more load...but most people still run the same pressure and load on them.

[Eeksyrider]

I'm totally new here but I have been experimenting with acetone for a few months now. I started off at a dismal 21.8 mpg, hard driving, extended idling. Before using acetone I cleaned up my driving, alot, enough so that I was not going to attribute any further gains to driving style. This netted 23.2mpg. I then started using a blend of acetone/xylene/2cycle oil, acetone being the critical ingredient. I never use more than 3oz/10gal of acetone and I've been trying different amounts of xylene/oil but usually it's about 1oz/10 gal oil ( mobil1 synthetic) and 2oz xylene. The oil doesn't mix with the acetone untill the xylene gets in there. I've seen a steady increase in my mpg which is now up to 29.28, part of this can be attributed to the temp (outside) increase but my driving has gotten more aggresive than at the beginning. My mpg is still climbing but my job has recently moved closer to home and I recently aquired an XR650L (traded two rifles worth half as much) so I'll be testing the stay-fresh ability of the mix now! This was tested in a '91 accord wagon,5spd, lowered,cf hood,cat-back exhaust. Similar results have NOT been found w/my wifes 2000 accord 4cyl 5spd, I think it's her driving though.:eek:

[ZugyNA]

Similar results have NOT been found w/my wifes 2000 accord 4cyl 5spd, I think it's her driving though.:eek:

People will ridicule the idea...but my impression from testing fuel additives is that:

* you need to find and keep to the correct amount per 10 gallons for the best mpg.........accurately....for best results

* you can either get your kicks and more power out of an additive...OR you can get better mpg by driving "cool".

This mpg effect is not fully attributable to driving style changes...it's just that additives can EITHER give you more power or better mpg. In some cases you might find both...where you'd get better acceleration in limited situations and still better overall mpg.

A test could be done where a hypermiler could drive the same way with and without a certain additive...and I think they'd see a difference.

[JanGeo]

Just an update after a few trips with Sally's Acetone in the last fillup I am seeing pretty consistant 50+mpg trips where I used to see 46-48mpg trips using ACE brand Acetone. I didn't expect to see this much of a difference but I will take it!!! Also the clock just hit 21,000 miles last weekend so that is 17,300 on Synlube in the engine.

[morempg]

I know I'm kinda late to this party but just to throw in my two cents. I am using acetone in a 97 Ford Tarus. I've been mixing 4 oz. of acetone (bought at Home Depot) to 16 gallons of gas and haven't seen any noticeable improvements after 3 tanks of gas. Should I try increasing or decreasing the amount of acetone?