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Old 10-31-2011, 06:46 PM   #10 (permalink)
Aero Wannabe
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TDi - '04 VW Golf
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Originally Posted by sc2dave View Post
what if you were to place a piece of sheet metal from the middle of the bed,to the top of the tailgate? The low side would be at the bed and the high part would be at the tailgate.
If you are thinking about it sloping up like a big spoiler it probably won't help mpg. Although, I believe Chevrolet did some testing and found a half tonneau covering the back of the bed was better than a full tonneau for reducing drag. It would have been level with the top of the bed though.
60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun

Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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