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Old 05-18-2009, 12:59 PM   #1
MadMax
 
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Drives: 2008 Yaris Liftback (Sprocket)
Join Date: Oct 2008
Location: San Antonio, Texas!
Posts: 2,799
Better Mileage With A Spoiler??

OK, as crazy as this sounds, it is a legitimate question...

Has anyone who has added a spoiler to their hatchbacks noticed any improvement in gas mileage?

I am wondering if the addition of a spoiler helps smooth the airflow in any way over the back of the car. I know the egg shape is already pretty smooth, but a spoiler could deflect the airflow in a way that makes it even more aerodynamic.

Cheers! M2
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