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
For someone to say that they all work or all don't work in every situation on every fifth wheel is just nuts. I saw a fw the other day being towed by a long bed truck with an "air dam" mounted to the center of the cab that stood almost straight up in the air. He now had two obstructions for the air. I have a short bed truck and I made an "air deflector" that I attached to the bed rail. It almost touches the back of the cab. I used mostly materials that I had laying around. I spent about $30 on tinted plexiglass (matches my tinted windows). I added pieces to the sides as well. Some might say that .7 mpg is a negligible gain, but when you start out at 9mpg, I think it is significant. I could tell the difference the first time I got on the Interstate. I could get the truck to stay in overdrive on a flat roadway at 65+ mph. Without the deflector, the truck would not hold the speed without down shifting.
