How Often Should the Vehicle Air Conditioning Refrigeration Oil Be Replaced?

[DelEmily]

Generally, the vehicle air conditioning refrigeration oil should be replaced once a year. The refrigeration oil in the car serves the dual purpose of cooling and lubrication. During operation, it helps reduce temperature and minimize wear on internal components. The steps for replacing the air conditioning refrigeration oil are as follows: 1. Open the vehicle's engine hood and locate the high and low-pressure pipes of the air conditioning system—the larger one is the low-pressure pipe, and the smaller one is the high-pressure pipe. 2. Check whether the inflation valve meets standards, and avoid using substandard or low-quality inflation valves. 3. Connect the high and low-pressure pipes to the red and blue hoses of the air conditioning pressure gauge device. Attach the yellow hose (the central hollow tube) to a vacuum machine for evacuation (approximately 15 minutes). 4. Turn off the vacuum machine and remove the high-pressure pipe. 5. Shake the bottle thoroughly before use to ensure uniform consistency, then add the appropriate amount through the compressor service port as needed.