Best fuel economy speed
What speed are you folks seeing your best mileage ? When I was towing it was not always the low end of the range.
Forum Discussion
Really two different questions here. Speaking from DP perspective, gas will be slightly different.
Best economic speed, flat ground: At peak torque RPM in 5th (not 6th gear). This is from my ScanGauge D. This is generally too low a speed for safe highway driving.
Best economic speed, rolling hills: About 200 RPM above peak torque RPM in 5th gear (so that it does not downshift on every hill).
Best REASONABLE economic speed, flat ground: At peak torque RPM in 6th gear.
Best Reasonable economic speed, rolling hills: About 200 RPM above peak torque RPM in 6th gear.
Note: some manufacturers chose gear ratios that really don't give you a "good MPG" speed/gear-- to be in 6th gear, your speed is such that aerodynamic drag is significant.
Best economic speed, flat ground: At peak torque RPM in 5th (not 6th gear). This is from my ScanGauge D. This is generally too low a speed for safe highway driving.
Best economic speed, rolling hills: About 200 RPM above peak torque RPM in 5th gear (so that it does not downshift on every hill).
Best REASONABLE economic speed, flat ground: At peak torque RPM in 6th gear.
Best Reasonable economic speed, rolling hills: About 200 RPM above peak torque RPM in 6th gear.
Note: some manufacturers chose gear ratios that really don't give you a "good MPG" speed/gear-- to be in 6th gear, your speed is such that aerodynamic drag is significant.
