How to Add Refrigeration Oil to a Car Air Conditioner?
2 Answers
There are methods to add refrigeration oil to a car air conditioner: 1. Direct Pouring Method: Simply pour the refrigeration oil directly into the compressor through the plug opening. 2. Vacuum Suction Method: Use a specialized vacuum tool to extract the air from the air conditioning system, then utilize negative pressure to draw the refrigeration oil into the compressor through a yellow hose. Once the refrigeration oil is completely sucked into the compressor, the addition process is complete. As the oil that provides lubrication for the moving parts inside the compressor, a severe lack of refrigeration oil will significantly impact the compressor's lubrication, sealing, and cooling functions. The amount of refrigeration oil required varies for different vehicles. Owners can check the detailed refrigeration oil filling amount on the compressor's nameplate or in the vehicle's user manual.
I just learned how to add refrigerant oil to my car's air conditioning system, which is usually done during vehicle maintenance. First, make sure the AC system is turned off—safety first. You'll need specialized tools like a vacuum pump and a refrigerant oil charging gun. Steps: First, recover the old refrigerant to avoid contaminating the new oil. Then, evacuate the system to remove air and moisture, or it could cause issues. After vacuuming, pour the right amount of oil from the refrigerant oil bottle—usually, the manufacturer's manual specifies the quantity. My car requires about 50 milliliters, so don't overfill. Next, insert the charging gun into the service port and slowly inject the oil while monitoring the pressure gauge to avoid overpressure. After adding the oil, vacuum the system again, and finally, recharge it with new refrigerant. The whole process is time-consuming, taking about an hour, and requires proper tools. Don’t cut corners to save money—it could damage the car or be dangerous.
