2003 Hummer H2 Just Bought They Horrible Mpg Anyway There Anything Myself

2003 HUMMER H2
12,800 MILES
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DAVID7734
  • MEMBER
  • 2 POSTS
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?
Mar 22, 2013 at 6:16 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
About the only thing you can try is to make sure the air filter is clean and check it for a tune up.
Mar 22, 2013 at 7:00 PM
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DAVID7734
  • MEMBER
  • 2 POSTS
Ok thank you. Is there anything after market I can put on it that might help?
Mar 23, 2013 at 7:44 AM
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