[Bob Hall]

I'm skeptical of the gas mileage claim. I'm not getting anywhere near what they claim for my truck. Never did and the mileage dropped even more when I put the 2500/3500 towing mirrors on my truck. I do need to upgrade because my camper is too heavy to be in the safe towing numbers. I do like the truck though.

I have the 2011 Sierra 5.3L Extended Cab 4x4 with 3.42 gears. The pic below was taken this morning on a flat section of U.S. Highway 15 a mile from my house. I had cruise control on and A/C. No cargo or passengers but me. Maybe 40lbs of miscellaneous items in the cab.