2013 Ford F-250 Diesel short bed pulling a 12,000 pound 35' Silverback 29RE 5th wheel. I drive like there's an egg between my foot and the gas pedal.
21.0 MPG with the truck alone on the highway
16.5 MPG with the truck alone around town
12.2 MPG hauling the 5th wheel today from Seattle to Yakima - 115 miles over a 3,100' pass at 60 MPH. I am not in a hurry to spend money on diesel.
12.7 MPG on the return trip from Yakima to Seattle.