Hummer H3T MPG by model year

Combined EPA ratings for each Hummer H3T model year. Years with identical ratings are grouped together.

Model year	Combined MPG	Best hwy	Versions
2010	14–16 MPG	18	3
2009	14–16 MPG	18	3

Model years before 2005 are listed for reference without a separate page.

Source: U.S. Environmental Protection Agency and U.S. Department of Energy, fueleconomy.gov. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.