New Truck Mileage

[Joseph Donnelly]

short beds have 31 gal, long beds 32 gallon tanks. I have sometimes seen a bit over 20 mpg highway driving.

 

[Newsa]

I got 19.7 on a trip to Houston. I was forced to drive 55.

http://www.fuelly.com/car/ram/2500/2014/zmos/321874

Maybe its still getting broken in? At 55 mph, unloaded, I do about 2-3mpg better than that. Did you lock out 6th?