gas millage
best gas milage on a V-10 pulling a 30' coach.
Forum Discussion
DrewE wrote:
For the best mileage, slow down. Air resistance increases exponentially with speed (approximately with the cube of speed, if memory serves), and at highway speeds for an RV that is generally where the most energy is expended. Rolling friction is comparatively small.
7 to 8 mpg is about what I'd expect in most cases.
Drag force increases with wind speed squared. Power to push a body through the wind increases with wind speed cubed.
Fuel economy changes due to wind resistance will change with the speed squared. Double your speed and the wind resistance is 4x as much. Increase your speed by 10% and wind resistance increases by 21%.
