68350
09-19-2006, 11:26 PM
anyone have a 2001 or so gmc 2500hd with the 8100? what kind of gas mileage do you get? thanks
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View Full Version : 8100 vortec gas mileage 68350 09-19-2006, 11:26 PM anyone have a 2001 or so gmc 2500hd with the 8100? what kind of gas mileage do you get? thanks dwd454ss 09-20-2006, 05:17 AM 01 HD,4:10 posi,allison tranny,no matter how i drive it,10 mpg |