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
MIKECBROWN wrote:
A diesel is most efficient at it,s torque peak. With my Cummins that is 1600rpm, which translates (with my current tires and gearing) to 63 mph. My mileage is slightly lower at 60 or 66 mph if it is dead calm wind. Add all the variables, wind, traffic, grades, driving style..... and just appreciate having your home with you. DRIVE SAFE AND COMFORTABLE>
This is the rationale I follow. It's all about the RPMs. I drive at my engine's torque peak.
