70-83 Tech Discussion Forum
Watch eBay. I just bought two 14oz cans of R-12 for $50.00.
R-12 A/C systems can be converted by simply recovering any refrigerant that is still in the system, adding POE oil (which is compatible with both types of refrigerant), and recharging to 85 to 90% capacity with R-134a.
Do not use PAG...