LIQUI MOLY PAG Air Conditioning Oil 46 | 250 ml | Compressor Oil | SKU: 4083

Product Information

Every compressor manufacturer I've ever interviewed says the same thing: Use the specific type of oil specified for their compressor. In most cases, it is some type of PAG oil.

However, it is important to note that if any of these components are replaced due to a failure or leak, they should be drained of any remaining refrigerant and oil, and the correct amount of oil should be added to the system when it is recharged. This ensures that the system has the correct amount of oil for proper lubrication and to prevent damage to the compressor and other components. On the other hand, poe oil excels in its moisture resistance and ability to reduce varnish formation. Therefore, the choice between pag oil and poe oil ultimately depends on the specific requirements of the air conditioning system and the refrigerant being used. Another distinguishing factor is their compatibility with different materials; while pag oil can be detrimental to certain types of seals and hoses, poe oil is generally compatible with most materials used in refrigeration systems. Mixing pag and poe oil is generally not recommended as it can lead to compatibility issues and potential damage to the system. It is best to use the type of oil recommended by the manufacturer or consult a professional technician for guidance. Can I use Pag oil instead of Poe oil in my HVAC system?

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Potential for contamination: If pag oil is not properly handled or stored, it can become contaminated with moisture, dirt, or other contaminants. Contaminated oil can negatively impact system performance and efficiency. Mineral oil was the de facto oil used up until the early 1990s thanks to its ability to mix with the R-12 refrigerant, but when R-12 was shelved due to its ozone-depleting properties, mineral oil had to be scrapped as well because of its inability to mix with the more environmentally sound R-134a. Viscosity: The viscosity of the oil plays a significant role in the efficiency of the air conditioning system. Pag and poe oil have different viscosities, and it’s essential to choose the one that matches your system’s requirements. To determine how much Pag oil to add, you first need to know the original compressor’s oil capacity. You can find this information in your equipment manual or on the old compressor if you save it. PAG polymers, first discovered more than 150 years ago, saw their breakthrough application occur during World War ll. At that time, both fires on U.S. Navy ships and aircraft were occurring due to the use of mineral oil-based hydraulic fluids. Research at the U.S. Naval Research Laboratory (USNRL) was begun to develop hydraulic fluids that would be more fire-resistant than the ones used at the time based on mineral oil.

When refilling refrigerant and performing any work on the refrigerant circuit, please observe the following: For more than 60 years, synthetic lubricants have provided a viable alternative to traditional hydrocarbon lubricants. Each type serves unique roles, with PAG oils performing in both high- and low-temperature environments, in areas of extreme pressure and where water solubility is desired. Polyalphaolefin- or PAO-based oil is a multi-grade synthetic oil. Compatible with many lubricants and refrigerants, it is intended for universal application and is sometimes used as a substitute for certain PAG oils if approved by the compressor manufacturer.Yes, synthetic versions of both Pag and Poe oils are available and can offer improved lubrication and stability in high-temperature conditions. Always ensure that the synthetic oil is compatible with the refrigerant and the system requirements. Does the choice of oil affect the system’s energy efficiency? Reduced energy consumption: By ensuring smooth operation and improved heat transfer, poe oil helps in reducing energy consumption. This can lead to significant energy savings and lower operational costs. hybrid vehicles with an electrically-driven compressor. POE oil has greater insulating properties than PAG and can help to protect the insulation on the windings, preventing electrical leakage. Using the wrong oil in hybrid vehicles may allow Do not introduce an open flame or hot metal in the immediate vicinity of refrigerant. Doing so can cause lethal gases to form.

Are synthetic oils (PAO - Polyalpha olefin and PAG - Polyalkylene glycol) better gear and bearing lubricants than mineral oils? When performing a compressor oil balance, it’s important to always follow the instructions provided with the compressor or in the vehicle service manual, to know how much oil to add prior to installation. Most times this will involve draining and measuring the oil from the failed compressor, then adding a specific volume of new oil to the replacement compressor. This can vary from a full charge of oil (236 ml), to a half charge of oil or no oil at all. 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 PAG oils were one of the first synthetic lubricants to be developed and commercialized. They were created under mandate from the U.S. Navy in response to hydraulic fluid fires on ships resulting from ordnance strikes during World War II. In 1942, and for the next 30 years, the Navy began to exclusively use PAG-based water glycol hydraulic fluids that were fire-resistant and could operate over a wide temperature range. Later, PAG oils began to see extensive use as textile lubricants and as quenchants in metal heat treating.

The compressor is the AC unit component that needs adequate oil to run smoothly. The compressor is responsible for compressing the refrigerant and circulating it through the rest of the system. As the refrigerant passes through the compressor, it also carries the oil with it, which lubricates the moving parts of the compressor. Normally, there is no need to add oil to your vehicle’s existing AC system, unless you have changed the compressor or there is a leak, letting oil drip from the system. To make sure the proper amount of PAG oil is added to the AC system, you should refer to the vehicle manual and consult assistance from a trusted automotive mechanic. Hybrid and Electric Vehicles generally require a PAG SP-A2 (ISO 46) oil for the A/C compressor. This is a special type of PAG oil that is non-conductive electrically. 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. PAG Oil Recommendations for Various Compressors