Does mineral oil mix with R12?
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 do you add oil to refrigerant?
Pour the oil very slowly into the intake port or low side of the compressor. This is where the large line entered. While pouring in the refrigerant oil, rotate the hub and clutch slowly to let the oil enter the compressor.
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 oil do you use for R12?
Mineral oil
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.
Can I mix mineral oil and POE oil in a system?
Can I mix Polyol Ester (POE) and Mineral Oil (MO) together? When using CFC or HCHC refrigerants, POE and MO can be mixed. The exception is R12 that only uses MO or Alkyl Benzene Mineral Oil (ABMO) blend. HFC refrigerants can only use POE oil.
Can you mix ester and PAG oil?
Registered. Ester oil and Pag are compatible,so you shouldn’t have a problem with that. Unless you have a leak,adding oil will only hurt the system. The system requires a certain amount of oil,a little over or under won’t hurt.
How much oil do I add to my AC compressor?
The AC system in most modern vehicles needs a total of 4 ounces (120 ml) of oil. So, checking the manual is a good idea to be sure of the exact amount and to avoid over- or under-filling the system. A low level of oil may cause compression failure, and overfilling will also hurt cooling performance.
Does R12 need oil?
Because A/C compressors have moving parts, they require oil. 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).
Does r12 need oil?
What is Polyolester oil?
Polyolester (POE) – the primarily synthetic oil for refrigeration systems using HFC refrigerants. It is also suitable for refrigeration systems using CFC, HCFC refrigerants and being evaluated in CO2 systems.
Can you add mineral oil to a rotary compressor?
New, R12 Rotary compressors come with a full system charge of Mineral Oil, which is compatible only with R12 refrigerant. New 134a rotary compressors come with a full system charge of PAG oil, which is compatible only with 134a refrigerant.
What kind of oil to use in a R-12 retrofit?
Add the proper Ester or PAG oil to the condenser, compressor and evaporator if necessary. Ester oil is often recommended for use with retrofit systems because it can mix with any remaining traces of mineral oil or R-12 and still lubricate the system properly.
How can I convert my R-12 to R-134a?
Steps To Convert R-12 to R-134a Take the vehicle to a repair shop licensed for A/C work that can evacuate the system of R-12 and recover it properly. Using an A/C flush kit, flush the evaporator and condenser to remove any remaining mineral oil in the system.
What kind of oil do you add to a R134A compressor?
Check what kind of compressor your system is equipped with. R134a increases discharge pressure, and some older compressors are not up to the task. Add the proper Ester or PAG oil to the condenser, compressor and evaporator if necessary.
