Get detailed information on the best gas mileage cars with over 0 MPG online and do side-by-side comparisons to help you with your used car buying. Research used cars Under 20 MPG and fuel efficient pre owned cars 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 used Under 20 MPG car models. Click on the links below to find the right vehicle for you!
