Fuel economy at 65 mph vs 60 mph
What fuel economy increase have you observed from pulling your fiver at 60 mph vs 65 mph?
Forum Discussion
mtofell1 wrote:
(snipped) Some vehicles may seem to be at a better RPM range and "feel" better but it's still taking more fuel to move that load the faster you go.
Not always. Some engines flat will be more economical at a higher speed than at a lower speed. Just the nature of the beast. My dad showed me how my old gasser, with GearVendor OD, would get a lot better mileage by running it at a higher RPM than I would by running 1 higher gear and lower RPM. Engine just ran "freer" at the higher RPM where I was somewhat lugging it, causing it to run fatter.
Lyle
