I have a little 25L Draper compressor in the garage, 2HP 240V thing. I lent it to somebody for a while and they said it kept tripping out (overheat) on sustained use and I now find that there is next to no oil in the compressor unit...
I have never ever had to top one up before - others I have used never ever lost any hence the fact it has not been checked for, er, probably quite a while
So what sort of oil should you use in a small compressor like this?
The only oil I can find locally in a quick inspection after lunch, is a Clarke "compressor oil" which on close inspection of the small print on the bottle looks like being a straight SAE40 engine oil. The book for the compressor has long since departed and I can't find anything helpful on Google which just wants to tell me how many different oil-free compressors Draper make haven't come up with anything on here either.
Any thoughts please? Is it critical or do they all use pretty much the same? I hope the compressor itself isn't f**ed as it sounds to have trouble starting when there is over about 50psi in the receiver, and it used to just spring into life immediately, but I hope that having the correct oil level in it will help! It sounds fine once it is running though.
Is "air tool oil" the same stuff? I already have some of this at home but maybe it is completely different stuff to the oil for the main unit?
Ta