gas mph 05 vs 08 - Hummer Forums by Elcova

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gas mph 05 vs 08

#11

09-15-2008, 09:32 PM

lasvegash2 lasvegash2 is offline

Hummer Professional

Join Date: May 2006

Location: las vegas

Posts: 301

Re: gas mph 05 vs 08

in my 2008 h2 sut i tried to run 87 and 89 and it hesistate under wot...but with 91 it pulls really strong...the hummer dealership told me to run 91 oct in it when i bought it and now i know why

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scott j.

2008 h2 sut
2008 escalade
1969 charger

Last edited by lasvegash2 : 09-15-2008 at 09:34 PM.

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