Sulphur is a favorite component of extreme pressure oils.
It has a characteristic smell. Come to think of it, it is the
sulphur component in eggs that provides bad smells.

Brian W

On Thu, 20 Nov 2003 19:18:46 -0500 (EST), (Ron
Thornton) wrote:

Surfnturf,

I've not had good luck with the few engines I've torn down that were
stored for some years with old oil. All the bearings and machined
surfaces were shot. From what I understand this is due to the sulfur
compounds that come out of the oil when heated combining with water to
form sulfuric acid. It's been a while though, maybe the new oils don't
do that.


Regards, Ron