DO NOT USE OXYGEN. Oxygen + oil, grease, etc. = explosion
no spark needed. Just pure oxygen coming into contact with any kind of oil, is highly explosive.
Oxy/Acetylene torches have it written right on the gauges. "Do Not Oil" for this reason.
http://www.docstoc.com/docs/19452735...OXYGEN-AND-OIL
have a look at that... I think you will see why oxygen is a bad idea.
It's a damn good thing you asked the question first. I think this thread should get stickied for safety reasons.