I can't get bioD in my area yet -- I'm working on getting into a co-op to buy it -- so in the meantime I'm working on putting together my own processor to convert waste oil. Periodically, I also buy 5 gal. jugs of new soybean oil from Smart & Final. These cost about $13.50 each, so that's about $2.50 a gallon, or only a little more than petro diesel at the pump. I mix this with dino diesel to take some of the sting out of the dino exhaust.
