Topping up AC refrigerant, what about PAG oil?

LOB · Post by **LOB** » 04 Jun 2020, 03:08

Let's say I've lost 30% R134a during the last 5 years and I topp up the system with new propane/butane mixture. Do I also need to top up with PAG-oil?

Post by **erikv11** » 04 Jun 2020, 07:17

Unless you have a breach in the system where you can see oil leaked out, you do not want to add any oil when topping up. Recharge with straight R134a.

LOB · Post by **LOB** » 05 Jun 2020, 05:25

Thanks! I dont think R134a is available from retailers in Sweden. You can however buy the propane/butane mixture.