2007 GMC Sierra 1500 Work Truck 2dr Regular Cab 6.5 ft. SB (4.8L 8cyl 4A)
My only complaint with this truck is the transmission. The transmission does not down shift right when you make low speed turns. I have gotten as high as 21 mpg on the highway with a few mods. I have installed cold air, programmer, and exhaust. My daily driving average is about 16 1/2 mpg.