Getting right at 17mpg with the 5300V- 8. It should go up. I'll also change to synthetic oil in a couple thousand miles. I'm six foot and seat back so wish mirrors would extend more out so I'm not looking down side of truck. Also, the headrests are cheap. you just push them up and down, there's no release button to lock them at a set height. Dropped down from a 2500 series truck with Diesel engine, was tired of paying 15-20 cents extra a gallon of fuel. So far like the truck, first Chevy product. Rides smooth..
Smooth ride and good power. Like the auto 4-wheel drive function.
Add release buttons to headrests. Allow oustide mirrors to extend out further for better side views. Raise truck height a couple of inches. Add underseat front storage area like on Dodge trucks. Would like to see GM go to 7yr70k mile powertrain warranty.