Originally Posted by richyrich
Holy crap this is news to me!! Forgive me for maybe sounding dumb but I always thought fuel mileage was directly related to the engines RPM's.
Everyday I drive my truck I try to keep my RPM's under 3000 thinking I am saving money but sometimes to do that I am in a higher gear than I know I should be for the speed I am going and yes I am over half throttle to maintain the speed. Due to the fact my gear ratio is not right for my tires.
So you are saying I am better off driving at higher RPM's with the throttle closed more? Will I actually get better MPG this way than the way I have been driving?
Man if this is true I learned something today....
As a general rule, lower RPM's are better, especially under acceleration. But if your engine is bogging you are doing nothing for MPG. If it's auto, it's as simple as just being easy on the pedal, the manufacturer should have set the transmission to give optimal MPG at cruising speeds. If it's Manual, check the owners manual for reccomended shift points.