[jhein]

Sludge story unrelated to solvents.

When I was 16 I was at my best friends older brothers shop. His partner was doing an oil change on a poorly maintained car. The oil was thick sludge. So he got the idea of using his torch to heat the pan. He got a ear-to-ear grin when the oil started flowing out. As he was getting near the end, he got the flame too close to the drain hole. By that time the oil was barely trickling out. Next thing you know, there was a small explosion from the fumes in the pan. there was a bout 2 foot long flame that blew out of the hole. Singed his hair a bit and scared the crap out of him. Once we realized he was OK we all had a really good laugh.