Page 1 of 1
What Kind of oil?
Posted: Wed Jul 30, 2025 6:43 am
by Dgreen
I'm helping a friend resurrect the ac on a 1987 Chevy S-10. It has R134A fittings on it. When I change components, what kind of oil should I put back in?
Re: What Kind of oil?
Posted: Wed Jul 30, 2025 6:56 am
by Dgreen
It's a 1988 model.
Re: What Kind of oil?
Posted: Wed Jul 30, 2025 7:47 am
by Tim
Depends on the repair you are doing. For a "total" system flush, you can add back PAG oil 150. If you're not doing a total system flush, this is not recommended. You can use a POE oil.
The system must be clean of old oil and debris, or you can expect a failure, IMO.