Originally Posted by 79inpa
I'm looking at a 2011 silverado with the 5.3 in it. Does anyone have one that can tell me what the fuel mileage is?

I drive that exact truck, ext cab Z-71 4WD. Overall, in town and on the road it averages 17.5 mpg.

Just hwy, probably better. Probably a bit less pulling a trailer.

Good truck; I really like mine.

2WD may give slightly higher mileage, probably has different gear ratio.

DF