Hummer >> Hummer Forums - General >> General Hummer Talk

03 h2 fuel mileage

bubba123 -> 03 h2 fuel mileage (10/27/2007 5:07:26 AM)
i am sure this has ben discussed. any way to improve fuel mileage? any one use any downloaders that workedor anything? got 3 mpg with a bully dog on a diesel truck. thanks any ways at all?

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