Does anybody really knows what happens using ester oils with R-22? Someone has told that there is not problem at all, but i´ve read that R-22 and mineral oils are apolar molecs, by the other hand R-404A and ester oils are polar molecs like water so they work well together. Does anybodoy knows if R-22 (apolar molecs) works well with POE (polar molecs)?
(Sorry about my english)