A/C Refrigerant Oil Tester is the ideal diagnostic tool to visually display problems or service requirements with A/C systems. With visual results in less than five minutes, the Refrigerant Oil Tester tests the A/C system for sufficient fluid levels and the condition of the refrigerant oil.
How to use
1. Start vehicle. 2. Once cold, run A/C system for 1 minute. 3. Turn vehicle off. 4. Press the single use Oil Tester to low pressure port 3 times. 5. Check colour
USE ONLY on low side service port. DO NOT CONNECT to high side service port of system as this could result in serious injury.