Testing Oil Pressure with a Comp tester?

But all the uses you listed are for air applications not oil.


Uh,,,,,,,,,,,,,,,no,,,,,,,,,,,,,,,,I said I use it "for all kinds of things" and gave those as examples. I HAVE in fact used it for oil pressure checking

You have to realize that when doing a compression check on an "ill" engine, just about anything might find it's way INTO the gauge, including (for those brands that use auto trans modulators) ATF, engine oil, coolant, and gasoline, and probably ..............water.

The only thing that is gonna hurt that gauge is something that is highly corrosive, or enough pressure to pin the gauge and damage the clockwork.:oops: