We are 106,000+ car owners sharing real-world car information.

Join Us

Flagged Gas Tank

 characters remaining

Hummer H3 Fuel Economy Data

4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range

flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
flat light none 0 20 0 80 65 16.700
flat light light 0 30 30 40 60 16.500
hills light none 0 100 0 0 N/A 17.253
hills light none 0 100 0 0 N/A 16.447
flat med none 10 30 30 30 70 15.800

Return to top

What Our Members Are Saying about the Real Gas Mileage of the 2008 Hummer H3

None of our members have yet commented on the real gas mileage of the 2008 Hummer H3.

Be the first!

2008 Hummer H3 Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Hummer H3's real-world MPG based on how and where you drive a car.

Website Security Test