Get a solid 11.5-12.5 mpg (I check on most fill ups). Best I have ever done was 13.24. I am leaving tomorrow for a road trip from Chicago to Florida so I will get to see true highway mileage as I have never been on a road trip without having a trailer in tow. I did manage 12.5MPG towing my 2 place PWC trailer down to Lake of the Ozarks 2 years ago (about 2,000 lbs total trailer weight).
I for the most part drive the truck easy, getting into the pedal really doesnt produce much more in the way of speed so there is no reason to mash the gas. If I want to go fast I will drive my Z06
