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5.3 vortec gas mileage question

05-27-2010, 08:17 PM

#19

raycow

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Join Date: Mar 2003

Location: San Francisco, CA USA

Posts: 2,454

Re: 5.3 vortec gas mileage question

Quote:

Originally Posted by TwoFiftyShifter

if you have say 265/75/16's, going to 245/75s will give you 1 mpg almost guaranteed, wont look as good, but that has been my experience.

Did you do a speedo correction when you changed the tire size?

Ray

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