Purpose: To check the volume of freezer oil in automotive air conditioning systems
Specification: 1 piece (loose-packed)
Instructions for use:
Start the vehicle and turn on the A/C function, set the fan speed to maximum. After running for 2-3 minutes, press the nozzle end of the test cotton against the low-pressure service port quickly for 2-3 times. Judge the oil volume and quality based on the test result.
Reminder:
This product cannot determine the freezer oil volume if fluorescent agent has been added to the system.
