 I barely get 14-15MPG in the city in the wintertime. Summertime, I can scrape the 18MPG if the A/C isn't on. I have never got anything above 20.5 MPG. I drive with a very very light foot. If I can get 24MPG out of a 4.3L 6cyl GMC pickup, I should be able to do the same with this truck. Vehicle keeps getting leaves in the ductwork, Seriously lacks power, and the A/C is on when you use any setting other than off or vent. Dealer claims it was designed that way. Vehicle still missing a flap in the driver's side fender well. Dealer says it's not supposed to have one. Vehicle has peeling painted masking tape on support in front of the radiator.