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Old 03-29-2012, 10:02 AM   #167 (permalink)
Daox
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We've never seen any scientific testing that even tested it. If you read up on aerodynamics (Hucho wrote the bible on it) you'll know that surface friction contributes a very small percentage of a vehicle's total drag. I doubt even testing in a wind tunnel could differentiate between a freshly waxed vs dirty car.
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