Refrigerant Oil

Only new, pure, moisture-free refrigerant oil should be used in A/C systems. This oil is highly refined with a very low moisture content. Oil container must be tightly closed at all times when not in use, or moisture from the air will be absorbed into the refrigerant oil.

On systems with HFC-134a refrigerant, use Polyalkylene Glycol (PAG) wax-free refrigerant oil.