I am not making bio yet, And I am still getting info on it, I understand everything that has to be done but have lots of questions. I won't bother with them yet just one to start. I have seen and worked with vehicles that are set up with line and tank heaters so you can just put filtered oil in the tank and it runs fine. So my question is, Everyone seems to make a point of the lye and methanol having a complete reaction, Why would this matter? My truck will run off of used oil in the summer with no processing of the oil, just filtered, So wouldn't any uncomplete reaction just stay as used oil and the truck would run it anyway. What I am looking at is not have to titrate and just add the same percentage of lye and methanol to every batch, And not have to worry about all the other bull that everyone says I will have to do.