I'm needing to fully flush the PAG oil that comes with York compressors.
What I've traditionally done is simply drain, fill with mineral oil, shake around, attach a drill to the compressor, turn it over for a few seconds at high rpm, flush the input/output ports with mineral oil, and repeat several times.
However, when I've torn apart the systems, there's always residue of two oils in the lines.
Also, I don't want to have to tear apart the compressors to flush with a solvent to let them dry.
Is there a flush that anyone can recommend that won't leave a residue, jack up the piston rings, etc, for an R12 system?
Last edited by Beach_dude; 06/16/19 05:33 PM.