Is PAG oil compatible with R12?
R12 systems used mineral oil, but unfortunately mineral oil doesn’t dissolve in R134a. 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).
What type of PAG oil should I use?
➔ 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).
What oil do I use with R12?
Mineral oil is used in the old R12 systems. It has worked well for a long time and is recommended for all R12 applications. R12 takes mineral with it as it travels through the system, meaning it has a high affinity for mineral oil. Mineral oil is not mixed with R134a.
What type of oil is used in a R12 system?
Mineral oil
Mineral oil is used in all old R12 (Freon) systems. It has worked well for years and would be the recommended lubricant for all R12 applications. R12 has a high affinity for mineral oil, meaning it takes mineral with it as it travels through the system. Mineral oil does not mix with R134a and there for not usable.
How much oil do you put in a new AC compressor?
Most new compressors will take about eight ounces. Make sure the correct oil is used and the amount is used.
How much oil does an R12 system take?
That is the amount that should be in the replacement compressor. The chart you referenced above (helpful website) indicates your system originally held 42 oz of R12 refrigerant and 7 oz mineral oil. Not all of the oil is retained in the compressor. Some gets dispersed to the receiver – drier, evaporator, condenser.
What does PAO mean in oil?
polyalphaolefin
Polyalkylene glycol (PAG) and polyalphaolefin (PAO) are two synthetic lubricant options for industrial applications.
How do I know if my AC compressor needs oil?
With excessive oil, your AC system won’t not cool as it should because the flooded oil hinders the flow of refrigerant through the condenser….AC compressor low oil symptoms – Recap
- Wearing and scoring on the load-bearing surfaces.
- Leakages in the system.
- Black smoke.
- Noises/smells.
- Abnormal system heat.
What type of oil should be used with R12?