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Re: P-rated to LT tire swap harms fuel economy? Prove me wrong
Posted to Technical Theory Forum on 2/10/2020 1 Reply

The difference in tire sizes, quoted, would make the odometer under report by a little over 3%. The truck went 103 miles, only showed 100 miles. I would expect the larger factor being rolling resistance. The heavier tire has to have a higher rolling resistance... Login to read more.

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