I'm thinking of removing my factory air dam to see if decreasing the frontal area of my truck will help gas mileage. As it is right now, the air dam is approximately 1/7th of the frontal area of the truck.
I'm guessing that it would slightly hurt gas mileage unless I made an under body tray. What do you guys think?
I haven't updated my garage yet, but the last 6 tanks of gas yield an average of 31 mpg with all of those tanks being 50/50 driving.