Get detailed information on the best Hummer gas mileage SUVs with over 0 MPG online and do side-by-side comparisons to help you with your used car buying. Research used Hummer Under 20 MPG and fuel efficient pre owned SUVs with high MPG including EPA fuel economy ratings, miles per gallon, car prices, reviews, cost of ownership, safety, recalls, standard features, options, warranty, fuel economy, specifications, and more on any Under 20 MPG Hummer used SUV models. Click on the links below to find the right vehicle for you!
