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Originally Posted by redpoint5
Do you have a link that substantiates your claim (not that I disagree with it)?
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Quote:
The more the material in a tire - especially in the tread area - the more the rolling resistance.
This means that new tires are going to have more rolling resistance than otherwise identical, but worn out, tires. So when you buy a new set of tires, you should expect a loss in fuel economy.
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Barry's Tire Tech
(That site is maintained by an EcoModder member & tire engineer.)