No, I didn't make it myself. I bought it at Superior Oil Co. in Phoenix. What a difference! My car runs great on the stuff. Smells nice also. I put a full tank of 100% BD. I know the methanol can eat up all of the rubber. When I get to half a tank I'll put dino diesel in for a 50/50 blend. Why the hell isn't it available everywhere? Some day I will make my own. andy