I know I'll get a lot of flack for this but,,,,, I've been a mechanic for 40+ years and have air tools that are 40 years old. I haven't oiled any of them for over 30 years now. They still run just fine. I quit using oil when an orbital sander caused me a ton of extra work on a paint job due to oil. Our paint shop at work wouldn't think of oil in a sander. They would probably fire anyone that did. So, long story short and my point is, I wouldn't worry about finding any magic oil for air tools. If you want oil just get some air tool oil and go with it. Harbor Freight, Amazon etc.