well when i travel to school on the highway from my house i put it on cruise at about 79mph (cant go that 80, i dont want a ticket) and i get about 300miles too the tank. But city driving is horrible, i see the needle go down. But it doesnt really bother me, I bought a hummer knowing damn well it guzzles. Hell, filling up...i get so many stares.

Its well worth it.
PS. im 6'5 now with plenty of space (if anyone was wondering)

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2007 Black H3, Adventure Package, Chrome Appearance, Chrome Cross Bars, Moonroof, Tow Package, Chrome Tubular Assist Steps. "My golly, this is by far the best looking 2007 H3 you will ever never witness"
My H3 is gods gift to man.