Truck Airfoil
Does the cost of installing a airfoil on the cab roof of my truck offset any increase in gas mileage because of the aerodynamics? Does the airfoil effect handling of the truck while hauling a 35 foot ...
Forum Discussion
I've one that I picked up originally to help with a large and very tall Leer cap on my short bed Chevy gasser. It worked spectacularly at that, boosting mileage by over 2.5 per gallon. With my new/old Ford dually and 5er, I get almost a full mpg improvement at the same speeds and over the same highway (~100 mile trip done twice). I'm certain the previously talked over reason (too far away on a long bed crew cab) is why I don't get more, but since it's already paid for, I'll take the savings.
