The A/C compressor is a key component of the air conditioning system. It transports the refrigerant through the A/C system by compressing gaseous refrigerant. DENSO compressor oil keeps the A/C compressor lubricated, ensuring it itself stays cool and friction-free so it can continue to perform under high-pressure and high-temperature conditions. The oil also ensures that the rubber seals in the refrigerant lines and connections are protected, preventing the likelihood of leaking or damage. To fulfil this function, compressor oil needs to have superior physical properties, such as temperature and pressure resistance.
It is also important that the correct type of compressor oil is used on the component. Garages should only use oil that has been approved by the car or compressor manufacturer and avoid mixing different oil types and universal oils to ensure high performance and prevent part damage.