I'm going to be changing the aircon evaporator in the next few days, but the one thing I don't have yet is PAG oil. I understand that there are three different viscocities of oil, and that there is a way of finding out which mine is from the compressor.

The compressor is not in the most accessible of positions, so any help in locating what I need would be useful please.

 

IDK, I would have a shop vac it for you then reservice it once you get the evap done. It cost me like $65.