Yes, R1234yf systems can use POE (Polyolester) oil, but whether it is the required oil depends strictly on the vehicle manufacturer.
Compatible with both R1234yf and R134a systems, the TEMP Select® POE oil is formulated for its dielectric properties and low flammability to ensure every job is completed according to OEM specifications.
The required oil type for R-1234yf air conditioning systems is generally ISO 46 viscosity PAG (Polyalkylene Glycol) oil. It must be specifically formulated for R-1234yf to prevent chemical reactions, as older R-134a oils are not compatible.
Polyolester (POE) oil is universally used with HFC (hydrofluorocarbon), HFO (hydrofluoroolefin), and A2L (mildly flammable) refrigerants.
No. Conventional PAG (Polyalkylene Glycol) and POE (Polyol Ester) oils should never be mixed.
It isn't a one-time service problem, but over time what you might think is a minuscule buildup of PAG oil in a high voltage system (which uses POE ester oil), can reduce the resistance provided by the POE to an unsafe level.
The biggest concern with Polyolester (POE) oil—widely used in modern refrigeration and air conditioning compressors—is its highly hygroscopic nature. It actively absorbs moisture directly from the surrounding air.
While mixing A/C Compressor oils is usually not recommended, as it can lead to A/C Compressor damage and failure, the new ND-oil 12 can be used with both R1234yf and the old R134a type refrigerants.
Black Death occurs when moisture contamination in an AC system forms corrosive acids that attack metal surfaces and break down compressor oil, resulting in a dark sludge that can damage components. It is caused by humidity entering through small leaks or using improper refrigerant.
PAO 68 oil for R134a refrigerant, and in some cases for R1234yf refrigerant and others Can be used as an alternative to the various PAG oils that are offered for R134a.
250ml AUTOMOTIVE AIRCON A/C R1234YF PAG46 SYNTHETIC COMPRESSOR OIL PAG 46.
Cons: Cost: 1234yf refrigerant may be more expensive compared to 134a, potentially increasing initial investment costs for equipment and maintenance. Limited Availability: The widespread adoption of 1234yf is still in progress, leading to potential challenges in availability and supply chain logistics.
HVAC systems with too much oil can result in reduced cooling capacity, and systems with excessive lubricant will create an internal coating that results in less heat transfer.
PAG (Polyalkylene Glycol) and POE (Polyol Ester) are both synthetic lubricants used in air conditioning and refrigeration systems. However, they have different chemical structures, electrical properties, and intended uses.
As described in gpd Tech Tip #108, hybrid scroll compressors require a specific type of oil with high dielectric properties. Using the same oil as a non-hybrid compressor, PAG oil, on a hybrid compressor will cause compressor failure.
The 3-minute rule is a simple but important guideline: wait at least three minutes after turning your air conditioner off before turning it back on. That short pause gives the refrigerant pressure in the system time to equalize.
The Rule of 5000 Rule is simple: Multiply the cost of the needed repair by the age of your air conditioner. If the result is greater than 5000, AC replacement is generally the smarter choice. If it's less than 5000, a repair might still be worth the investment.
The Black Death is known today simply as plague, caused by the bacterium Yersinia pestis. While infamous for the 14th-century pandemic, it still exists worldwide, with cases treated using antibiotics. It mainly persists in rodents and is transmitted by fleas, occasionally infecting humans in three main forms.
No. Conventional PAG (Polyalkylene Glycol) and POE (Polyol Ester) oils should never be mixed.
Automakers began transitioning their air conditioning systems to the eco-friendly R-1234yf refrigerant around 2013, starting with select GM and Chrysler models. By 2021, almost all new passenger vehicles sold in the U.S. were required to be equipped with the updated system.
Though it is still illegal to vent the refrigerant into the atmosphere, it is not prohibited to charge a leaking system or to sell 1 pound cans. If you Google “charging ac system with a 1 pound can”, there are 12,700,000 results. R1234yf is not without some problems.
Moisture will stay dissolved in the oil and cannot be readily removed by applying a vacuum; moisture can only be removed from POE oil with the use of a desiccant. Again, normal servicing practices always recommend replacing the liquid line filter-drier when a system is opened for service.
Mineral oil will start to decompose at approximately 350ºF (400ºF for POE oil). As temperatures increase above this threshold, the oil starts to polymerize. In plain English this means that the molecules that con- stitute the oil's makeup will start to combine into larger and larger molecules.
The ideal oil pressure varies depending on the car brand and model, but generally, the ideal oil pressure is between 25-65 PSI.