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Old 10-01-2012, 04:15 PM   #6 (permalink)
Sven7
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Join Date: Aug 2011
Location: Warren, MI
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Boo Radley - '65 Ford F100
90 day: 13.28 mpg (US)
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Spoiler's not going to do much. You'll probably need to do a full aero topper to see much over 1 or 2 mpg.

Try an air dam and grille block first. The tires are probably killing your mileage too.
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