Thanks for all the replies. I had an offer from a reader to sell me all
the "correct" oils and I am taking him up on it. I also got some of the
turbine oil, which I'll just use around the shop.

J & J wrote:

I got an old South Bend Lathe, and I know that there are all kinds of
oils that they call for to lubricate it. Does anybody have a cheap
source for machine oil? I don't need much...

Jim