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Old 11-11-2011, 05:39 PM   #48 (permalink)
EcoModding Lurker
TX_Dj's Avatar
Join Date: Oct 2011
Location: Texas, Plano
Posts: 28

Mega - '07 Dodge Ram 3500 4x4 Mega Cab Dually SLT
Team Cummins
Last 3: 20.68 mpg (US)

Akane - '11 Honda CBR250R
90 day: 51.66 mpg (US)
Thanks: 2
Thanked 1 Time in 1 Post
dredging up the dead again.

From the first time I saw the airtabs and saw their effect on tractor/trailer rigs, I was intrigued. Then I saw people trying to use them on small cars, and also saw what others have mentioned that they do appear to smooth the airflow but do not appear to contribute significantly to MPG.

What is the consensus on using them on a full-size truck such as mine?

When I first bought my truck, I considered adding them along the roof line, down the side of the cab where it sticks up above the bed line, and possibly again near the rear corners of the bed. Now that I have a tonneau, that consideration has extended to include along the back edge of the tonneau.

That's a lot of airtabs (@ ~$2.50/ea) to buy and stick on just to "test".
2007 3500 MC DRW 4x4 5.9L (120k mi)
Best Tanks: 16.6 towing / 23.92 unloaded hwy / 19.78 city

2011 Honda CBR250R (brand spankin' new)
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