Urban vs extra urban FE

[african_andy189]

This is confusing me, whats going on!The fuel economy for most cars is rated at a higher value for extra urban than urban, but with my car im noticing the complete opposite!In the city i can pull off about 15 miles per litre and the highway im lucky if i get 10 and im averaging about 12.9 at the moment according to scanaguage.Is the increase in the city dues to the hypermiling techniques?

[DRW]

Yes, hypermiling helps more in the city. This is especially true if you have a sporty car with a low top gear that has the engine spinning rapidly.

[theholycow]

How many RPM do you see at high speeds?

I haven't had a way to test for it, but I believe my car gets better FE in non-highway driving.

[african_andy189]

yes i definitely think it's the case, with my car at least, but with my older toyota corolla 2 litre diesel it was a lot better on the highway! my car now is 16v so i presume its a sportier model. At about 50mph it's definitely under 3000rpm, can't remember the exact number

andy