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Old 01-21-2008, 05:02 PM   #16 (permalink)
bondo
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It is on page 148, table 11., where Capt. Williams records his real world road tests with the air dam alone showing an increase in fuel efficiency of 7.27%. With the addition of the aerodynamic bed cap, the fuel efficiency increase to 21.23%.

In over ten months of real world road testing of the aero cap as the only modification on my truck, a better than 20% increase in fuel efficiency has been realized at speeds over 60 miles per hour.

I am going to have to build me an air dam this spring too!

Last edited by bondo; 01-21-2008 at 05:08 PM..
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