I just bought a 2003 H2 I know they have.

DAVID7734

MEMBER
2003 HUMMER H2
12,800 MILES

I just bought a 2003 h2 I know they have horrible mpg anyway, but is there anything I can do myself to improve the mpg in any way?

Saturday, March 23rd, 2013 AT 1:16 AM

2 Replies

JACOBANDNICKOLAS

MECHANIC
108,217 POSTS

About the only thing you can try is to make sure the air filter is clean and check it for a tune up.

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I just bought a 2003 H2 I know they have.

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