Does the Car Air Conditioning Compressor Oil Need to Be Replaced?
2 Answers
Generally, the car air conditioning compressor oil does not need to be replaced. The car air conditioning compressor is the heart of the car air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. Below is relevant information: Classification: Compressors can be divided into fixed displacement and variable displacement types. Working Principle: Depending on the working principle, air conditioning compressors can be categorized into fixed displacement compressors and variable displacement compressors. Based on the working method, compressors can generally be divided into reciprocating and rotary types. Common reciprocating compressors include crankshaft connecting rod type and axial piston type, while common rotary compressors include rotary vane type and scroll type.
Last time I had my car serviced, I specifically asked the mechanic about the air conditioning compressor oil. He said it does need to be changed regularly, just like engine oil. This oil mainly lubricates the internal parts of the compressor to prevent excessive wear. Over time, it gradually deteriorates, and the lubrication effect decreases, making the compressor prone to abnormal noises. Moreover, deteriorated oil can also cause internal parts to seize up, and in severe cases, the entire compressor may fail. I usually change it every two years, or when I feel the air conditioning isn't cooling effectively, I go for a check-up. A reminder to all car owners: don't wait until the compressor fails to change it, as the repair costs can be very high then.
