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Old 05-20-2011, 12:45 PM   #51 (permalink)
ECONORAM
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Join Date: Oct 2009
Location: Oklahoma City, OK
Posts: 528

ECONORAM - '07 Dodge RAM 1500 QC SLT flex-fuel
90 day: 18.16 mpg (US)

the Avenger - '08 Dodge Avenger SXT
90 day: 27.06 mpg (US)
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Quote:
Originally Posted by Big Dave View Post
Aerohead is probably right. Anair dam plus a belly pan would give the best MPG.

I modified my air dam this summer. It was 3 inches above grade and it grounded at the least provocation (like braking or the steps in my driveway). It worked really well. It was worth at least 0.75 MPG.

But I got tired of listening to it grind, so I shortened it up to 9 inches above grade.

Now it doesn't drag or look dorky, but it is nearly worthless in improving MPG.

I'm trying to learn GIMP so I can shrink down my pix to a size the site can handle.
Very interesting. I've not put an extended air dam on my truck, but after reading this I might have to try that. I also plan to drop mine about 2 inches. Both should help in the MPG arena...

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