Thank you, Lt.Dan, for the voice of reason. Guys, what are you talking about w/ all this oil business? Just cause some use oil for cooling doesn't mean it's appropriate for PCs. I may have missed it, but has someone mentioned some numbers comparing thermal properties of oil and water? I love to see you guys brainstorming, but seems like efforts could be used better somewhere else. Like chewboy said, "not really sure why i'm stuck on this oil kick thing".
edit: here's some numbers i found. More @
http://www.ex.ac.uk/cimt/dictunit/notes5.htm . Value for canola oil i found on some school newsboard so don't know how accurate it is, but it's probably close.
air: .026 W/mK (Watts/ meter degree Kelvin)
canola oil: .19
h2o: .61
mercury: 140
copper: 401
So if you guys are serious, get some mercury!