Compressor refrigerant oil is not more durable when added in larger quantities.

Many people mistakenly believe that the more refrigeration oil added to a compressor, the better the lubrication and the longer the equipment service life. This is a wrong concept. The core functions of refrigeration oil are lubrication, heat dissipation and sealing for the compressor’s internal precision parts. The filling volume must strictly follow the standard oil level of the equipment. Excessive oil filling will inevitably cause various faults and damage the equipment. If the refrigeration oil level is too high, the surplus oil will enter the system pipeline along with the refrigerant. It will occupy the heat exchange space and adhere to the inner wall of the pipeline, greatly reducing the heat exchange efficiency, worsening the cooling and heating effect and increasing energy consumption. More seriously, excessive oil will cause oil slugging, impacting core components such as compressor valve plates and cylinders, resulting in component deformation and damage, and causing abnormal noise, stalling and even compressor failure. Only the standard oil level can form a stable oil film to ensure good lubrication and heat dissipation. Therefore, filling refrigeration oil strictly according to the manufacturer’s standard is the safest way to ensure stable operation and prolong the service life of the compressor.