They must have a pretty heavy foot. I'm working mine every day and average between 10 & 10.5 pulling a trailer that weighs 7600 lbs empty. On the only run I made with just the truck, I averaged 15 mpg. That was on a 750 mile interstate run.

 

Thats good to know. I'm sure as more people buy them we should get good info. The magazine scared me. haha