Thread: 45PSI Tires MPG vs. 34PSI Tires MPG
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Old 07-03-2008, 11:42 AM
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Interesting results, I got similar results from my data this weekend.

Quote:
Originally Posted by Rob22315 View Post
I'm curious about tires wearing in the center as a result of the higher pressures. The hypermilers claim tires still wear evenly since steel belts keep the tire surface flat. One poster said he's seen tires inflated at higher pressures for use in races wear out faster in the middle.

Anyone have any data for tires used only in streets?
To get better MPG you have to reduce the surface area, basic physics tells us that running higher pressures will make the tire deflect outwards in the center thus giving less resistance and wearing that part of the tire more.

Regardless of construction everything deflects when you apply load.
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Last edited by Sugarphreak; 07-03-2008 at 11:44 AM.
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