July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Refrigerant Oil

REFRIGERANT OIL TYPE

^ R-12 refrigerant oil, 525 viscosity (See Note).

NOTE: If vehicle has been converted to R-134a use PAG (Polyalkaline Glycol) synthetic refrigerant oil (GM Part No. 12345923) or equivalent.