What is refrigerant PAG oil?

PAG oil: Polyalkylene Glycol or PAG oil is a man-made lubricant used in both R134a systems and the latest R1234yf. There are several types of PAG oil based on the viscosity of the oil — PAG46, PAG100 and PAG150 — and the type of refrigerant it is designed for.

Does PAG oil mix with refrigerant?

Oil and refrigerant vapor do not mix readily, and the oil can be properly circulated through the system only if gas velocities are high enough to sweep the oil along.

What is pag 46 refrigerant oil?

Fully synthetic, polyalkylene glycol (PAG)-based oil which is used for the lubrication, sealing and cooling of refrigerant compressors or refrigerant circuits in passenger or commercial vehicle air conditioning systems.

Does Pag need oil?

Automotive air conditioning compressors require specific types of lubricants. Most 1996 and newer A/C systems use R134a refrigerant and require some type of PAG (polyalkylene glycol) oil for the compressor. If the wrong type of compressor oil or the wrong viscosity compressor oil is used, it may damage the compressor.

What happens if I use the wrong PAG oil?

The use of incorrect oils, such as universal oils or oil mixtures, inevitably leads to seizure and damage. This is because universal oils, often preferred by garages, are PAO oils or mineral oils with a different viscosity to that of synthetic PAG oils.

Is PAG oil compatible with R134a?

➔ PAG oils are highly miscible with R134a (PAG oils 46 YF and 100 YF also with R1234yf) and are suitable for lubricating the air conditioning systems of most passenger and commercial vehicles. ➔ The choice of the right viscosity is crucial when using PAG oils (PAG 46, PAG 100, PAG 150).

Does r134 have PAG oil in it?

Summary: PAG Oil is used on R-134a systems from about 1995-2015. Check your manufacturer’s recommendation for proper type of oil as well as specific viscosity. Because mineral oil and PAG oil cannot be mixed, another A/C compressor oil was needed to bridge the gap for system conversions.

What oil do I use for 134a conversion?

R-134a systems require PAG (polyalkylene glycol) oil of a certain grade. PAG oil is hygroscopic, meaning that it readily absorbs moisture from the air. Never leave the cap loose when storing PAG refrigerant oil. Some manufacturers recommend using less hygroscopic POE (Polyol Ester) oil instead of PAG after a retrofit.

Is PAG oil compatible with R-134a?

Is PAG oil mineral oil?

Summary: Mineral Oil is used on R-12 systems, primarily on cars built prior to 1995. Polyelkylene Glycol (PAG) oil is a synthetic oil used by OEMs in their R-134a systems. PAG oils are harsher than mineral oils, and may cause skin irritation and damage O-rings and seals.

Does 134a have oil in it?

So, along with R134a came a new oil: Polyalkylene Glycol—or PAG oil. Note that there is another kind of oil called Polyol Ester Oil (POE). The advantage of ester oil is that it works with both R12 as well as R134a, so you can fill the system with it and then use either refrigerant.