Campfire Time wrote:
I'm wondering what the OP was expecting. Also wonder at what speed he was traveling at. The laws of physics still apply. Towing a box down the road isn't going to get much above 12mpg, and only in the best of conditions at 60mph. The average towing mileage is 10mpg.
Exactly! I towed a 24' HTT with my 2007 5.3 Avalanche 4x2 with DOD and I averaged overall around 10mpg.
I now tow with a 2014 SCREW 3.5 Ecoboost 4x4 with Max Tow package and 3.73 rear end ratio, pulling a heavier 26' TT and i still average 10mpg.
So i get the same towing mpg, with a bigger/heavier truck that has 4x4 and tows a heavier trailer. And it pulls like a diesel through the Western mountain ranges.
I'm very happy with my Ecoboost.