Used HUMMER H3 SUVs With 20-30 MPG

With gas prices at all time highs, fuel efficiency has become a large part of the decision process when researching a used vehicle. Within the Truckin’ Magazine buyer’s guide you can take advantage of our MPG filters to view all used HUMMER H3 SUVs with 20-30 MPG. Select a year and submodel of any old HUMMER H3 SUV over 20 miles per gallon to read reviews, view fuel economy, towing capacity, engine specs, pictures, and more.