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Old 04-23-2008, 12:24 PM   #8 (permalink)
kmwharley
Cummins Fan
 
Join Date: Mar 2008
Posts: 34
Just curious to the guys that lost mpg with larger tires, did you correct for tire size? On my wifes truck she never remembers and when I tell her that because of the larger tire size she if off 10% I see a light :-). If you are not correcting for the tire size on the speedo then maybe you are not actually losing any, maybe a little? Just a question
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