If you do not know that it's important (whether oil needs to be carried by the refrigerant or not) then you can stuff your usual attempt at smart-ass rejoinders. I've probably been converting and working on a/c longer than you've existed.
Why don't YOU try giving some advice for once, instead of attacking individual posters? Another idiot for the Ignore list. <plonk>
I gave sound advice, you obviously do not know crap about the RV2 system when it is functioning as designed. Why would you know more about successfully converting it to a type of Freon it was never designed to use?
You do not.
Run R12A in it and it's a drop in replacement.