Well, I just did my first titration. I'm getting my oil from a gas station owned by some foreigners. They've agreed to let me take their oil for free, about 10 gal. a week or so. They change it out two times a week, on wed. and sat. I got my sample on sat, and I let it settle for 24 hrs. I just finished my first titration, and it only took 1ml. Does that sound right? There's a layer of white crud at the bottom of it right now.