Originally Posted by kuene

picked up my 4 seasons reman heavy r4 compressor today. there is a plate over the in/out ports and a sticker mentioning that a few ounces of oil were added.

if guess i'll know when I take the plate off - but if the unit did not come with any sealing washers, would it possibly be the older o-ring type?

I'm going to dump that oil and use my r12 compatible ac oil. I'm just hoping I don't need to hunt down sealing washers now too...