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Old 03-29-2012, 09:49 AM   #4 (permalink)
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Location: Warren, MI
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Boo Radley - '65 Ford F100
90 day: 13.28 mpg (US)
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On wagons and fastbacks a diffuser at the wrong angle can increase drag. Assuming your car is about 0.3 Cd it is possible that a badly engineered diffuser could take away those 2mpg.

He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store

Last edited by Sven7; 03-29-2012 at 09:54 AM..
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