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Old 09-07-2012, 04:46 AM   #6 (permalink)
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Originally Posted by Sven7 View Post
Half tonneau or full aero cap... I don't really think there's a worthwhile middle ground.
Okay. Does anyone have any rule of thumb of what mileage improvement I might see from each option?

And what additional improvement blocking grille with cardboard and folding the mirrors in?

Or just plain driving as slow as I can without being arrested as a road hazard? :P
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