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Old 01-11-2012, 08:44 PM   #23 (permalink)
drmiller100
Master EcoModder
 
Join Date: Dec 2011
Location: Boise Idaho
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lots of tailgunners on this thread.

Lets say your car is 45 inches tall. Then you lower it 2 inches.

Your frontal area is a function of how high your car is, and how wide.

one way to measure it is simply divide the numbers -

2 inches divided by 45 is 4 percent.

so you should expect about that much better mileage.
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