So I have been thinking about this now. I have a friend who owns a few restaurants, I can get probably 10-15 gallons of used fryolator oil a week ( veggie oil ) my questions would be 1 , how many gallons would a 2,000 foot x12' wide road require. 2, how much filtering of the old oil would be required and would it clog a sprayer. 3,.. How long would it last keeping dust down. 4 , . What sprayer would work best.