Are Oil Free Air Compressors REALLY Oil Free?

dodgedifferent2 said

There is a way to add the oil back in .... i just do not know how. I would have to look.
The oil was put in there when the compressor was built.. or installed so somebody put some in.

The only concern is where it leaked out of. If its cracked then not good.

I am thinking there should be a pipe plug with a square head or an inset allen head. It could also be a regular hex...

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Guys, thanks for the feedback. I couldn't see any "visible" damage to the compressor, but couldn't get the plastic shroud off w/o proper tools. Compressor is in my daughter's garage now, about 4 hrs away. Taking the right tools back with me to investigate further, next time we are up there. Just moved and we have stuff in three different places until we get settled. It is a Coleman and according to the documentation, there are a lot of parts available to repair it.

I will look for a plug. One of the diagrams online does show a plug, but not sure it is specific to my exact compressor. Need to have the cover off. Thanks again.

Jim