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
The reason 18 wheelers use them is the payback is there due to the high milage the truck puts on. Over the road trucks will drive between 100K to 300K per year. A small increase in mpg multiplies very fast at that rate. For an RV it may not pay. I do however think they do increase the mpg if set up right.
