Submitted by John W (not verified) on March 24, 2008 - 11:00am.
Do an experiment with your car: on a long freeway drive (one where you'll have to fill up), go 5mph less than usual and see if your mileage improves. In my 2000 Ford Focus I can get about 2 miles/gallon better. Plus I tend to be more relaxed when I'm not trying to pass everybody, which is an added bonus!
Also, I try to check my tire pressure at least once a month. A few psi low can wreck your mileage (and your tires!).
Ease on the speed
Do an experiment with your car: on a long freeway drive (one where you'll have to fill up), go 5mph less than usual and see if your mileage improves. In my 2000 Ford Focus I can get about 2 miles/gallon better. Plus I tend to be more relaxed when I'm not trying to pass everybody, which is an added bonus!
Also, I try to check my tire pressure at least once a month. A few psi low can wreck your mileage (and your tires!).