Sorry, pet peeve here, please ignore if it bothers you.. On Sun, 20 Apr 2003, Paul Hewitt wrote: > I'll bite onthe contaminates, waste oil can have all kinds of good stuff > including benzene etc, most glycols etc, when burned over about 900 degree's > are a mute point. Many of the synthetic oils could be a serious problem, (snip) That is moot, not mute.