Quote:
Originally Posted by ThePrudentNinja
I have wondered if there is a difference in fuel economy between a well waxed (slippery surface) car and a dirty car. I would presume there to be a difference but real life aerodynamics sometimes doesn't do as one would think.
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According to Gary Eaker, who runs the A2 wind tunnel, no:
"Wax: Contrary to what you may read on your favorite message board, well-waxed, smooth paint is no more aerodynamic than the worst spray-can, flat-black primer job you can imagine."