2011 Ford Super duty 6.2 3.73 tow 10k+?
Hi everyone, My wife and I bought a toyhauler and are looking to upgrade our truck. We have a 09 f250 crew cab short bed with the 5.4 and 4.10 gears. It pulled our former 27 ft travel trailer well ...
Forum Discussion
With a 6-speed transmission and towing the difference in MPG will be too small to measure. When towing your truck will never make it into 6th gear and will be mostly in 4th or 5th gear.
The taller gears help the EPA mileage calcs for the truck companies fleet rating more than they help MPG in actual use by the owners. The difference in RPMs at towing speeds will be less than 10% and most of the horsepower is going into overcoming wind resistance or with elevation gains going up a hill where relative RPMs are not a factor at all in determining the fuel economy.
The downside with overly tall gearing is more frequent downshifts for the engine to cope with the load being towed. Not only bad for mileage it is a pain for the driver.
The taller gears help the EPA mileage calcs for the truck companies fleet rating more than they help MPG in actual use by the owners. The difference in RPMs at towing speeds will be less than 10% and most of the horsepower is going into overcoming wind resistance or with elevation gains going up a hill where relative RPMs are not a factor at all in determining the fuel economy.
The downside with overly tall gearing is more frequent downshifts for the engine to cope with the load being towed. Not only bad for mileage it is a pain for the driver.
