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Old 12-05-2017, 09:04 PM   #77 (permalink)
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Coast Down Test

Originally Posted by Xist View Post
Have you ever done a coast-down or tuft test?

Yes, I did about 50 coast down tests, about 5 years ago, using a hand held GPS. The results were not accurate enough to post anything here. I did find that the rolling resistance changed about 17% between winter and summer driving, if I can believe the numbers.

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