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#11
03-31-2010, 11:42 PM
Hummer Professional
Join Date: Jan 2004
Location: Socal
Posts: 272
Re: which gears? 4.56's or 4.88's?
It shows 68 mph on the speedo, but with GPS mine shows 63 mph.
I thought the point of gears was for the car run at lower rpm at higher speeds? There isnt much of a difference in my mpg...
Last edited by kalantar : 03-31-2010 at 11:44 PM.
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