Just got back from a 1100 mile trip in '12 Chevy 1/2 ton crew cab 4x4. Speeds from 70-78 mph and quite a bit of crosswind/headwind, averaged right at 16.5 mpg for the entire trip. 3 guys and hunting gear. FWIW.
Not bad. Do you have the aluminum block 5.3 with AFM?
"Never stand and take a charge...charge them too."
