Air Tool Oil

Starting fluid to clean, run it then let dry.

Motor oil to lube.

Still using the IR 231 of my dads. He gave it to me in 95 when I started workin on trucks

 

I have used ATF for the last 30 years. I also have an IR231 that is old enough to vote/smoke/swear.

 

The 231 seems to be a good one. Mine has lasted 10 years and still going strong.
My 2235 or something like that had a lot more power but didn’t last.
As far as oil it’s whatever is handy…gear lube is not good it tends to clog the silencer.
Only thing I would really worry about would be a grinder. We have a couple air grinders in the shop because the guys won’t let the electric ones live and we keep them on a oiled system.

 

And the shop buys the air!

 

I usually just use ATF.