The following is a list of recommended lubricants by compressor manufacturer. PAG Oil Recommendations for Various Compressors This type of oil is required in some hybrid and all electric vehicles that have an electrically-driven compressor rather than a belt-driven compressor. This is a special type of PAG oil that is non-conductive electrically. Hybrid and Electric Vehicles generally require a PAG SP-A2 (ISO 46) oil for the A/C compressor. Universal compressor oils should NOT be used in R-1234yf applications. General Motors recommends GM lubricants only (PAG-PSD1 #192606/14 Cadillac XTS, and PAG-ND12 #192990 Cadillac ATS) with R1234yf A/C systems. Newer vehicles with R-1234yf A/C systems require a special PAG YF 46 or PAG YF 100 compressor oil, which one depends on the compressor and the requirements of the vehicle manufacturer. This can lead to poor lubrication and premature compressor failure. "Universal" A/C compressor oils are often PAO-based and are not the same viscosity as the PAG oil recommended for a specific type of compressor. Mineral oil should only be used in older R-12 A/C compressors because R-12 will not mix with R-134 refrigerant. Using the wrong oil may allow current to short circuit back through the A/C compressor, creating a shock hazard. POE (polyol ester) oil is usually specified for hybrid cars that have electrically-driven A/C compressors because it is non-conductive. PAO (Polyalphaolefin) oil can sometimes be used as a substitute for certain PAG oils if the compressor manufacturer approves it.ĬAUTION: PAG oils should NEVER be used in hybrid vehicles because it is electrically conductive. In fact, the main reason for a newly installed A/C compressor to fail is using the wrong type of compressor oil. If the wrong type of compressor oil or the wrong viscosity compressor oil is used, it may damage the compressor. Most 1996 and newer A/C systems use R134a refrigerant and require some type of PAG (polyalkylene glycol) oil for the compressor.
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Auto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, IndexĪ/C Compressor PAG Oil Application Chart Copyright Īutomotive air conditioning compressors require specific types of lubricants.
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