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Home >> Saturn >> 1997 >> SW2 Automatic >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> HVAC System - General Servicing >> USING R-134a REFRIGERANT >> Refrigerant Oils

Refrigerant Oils

CAUTION: Use ONLY the specified oil for the appropriate system or A/C compressor. Always check the underhood A/C specification label or A/C compressor label before adding refrigerant oil to A/C compressor/system.

Refrigerant R-12 based systems use mineral oil, while R-134a systems use synthetic Polyalkylene Glycol (PAG) oils. Using a mineral oil based lubricant with R-134a will result in A/C compressor failure due to lack of proper lubrication. See the REFRIGERANT OIL APPLICATION  table for specific refrigerant oil applications.

NOTE: Synthetic/PAG oil absorbs moisture very rapidly, 2.3-5.6 percent by weight as compared to a mineral oil absorption rate of .005 percent by weight.
REFRIGERANT OIL APPLICATION

Application Refrigerant Oil
Saturn Saturn PAG Refrigerant Oil
All Other Models PAG Refrigerant Oil Part No. 12345923)
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