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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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Old 11-10-2007, 06:59 AM
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Default Re: Gas Mileage after Programmer

RippSpeed is correct on the MPG in my mind. Everyone knows what happens when your are way way to lean. I do not care what you built the engine from it will end up damaged if you do not know what your doing in the tuning end of the deal. Lean has to be offset with something such as higher octane, greater cooling, or several other options. The cheapest is driving with a very light foot and going really slow if that lean.

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Old 11-10-2007, 07:49 AM
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Default Re: Gas Mileage after Programmer

The Predator is a great tuner if you can adjust +/- timing maps, fuel injection percentages, etc... I wish my hypertech could do that but then why would I need something like that... I have this problem with messing with cars alot... I cant leave $#!T alone... This Hummer I'm leaving pretty much stock... p.s. I bought this hummer for my wifey... I really want another hummer with a diesel in it... So I'm waiting to get mine when they offer a diesel with a alison 6spd...

Last edited by RippSpeed : 11-10-2007 at 11:22 AM.
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