Air Deflector

[SC99RV]

How many folks have installed air deflector on your tow vehicle and does it work? I read that they can increase gas mileage up to 3 mpg. I find this hard to believe.

[huntr70]

I had one on a dually about 10 years ago. All it did was move the bug line up on the front cap.

Could never get it to push the air over the top.

[Second Chance]

These deflectors that mount on pickups to tow RVs are a gimmick. They work on tractor-trailers because the back of the cab is much taller and much closer to the front of the trailer - and the box trailers are square and flat (unlike more aerodynamic fifth wheel RVs). There have been many discussions on multiple forums about them - but not for quite a while. I'd say don't waste your money.

Rob