James Robinson wrote:

Certain types of Freon are. Those types are no longer used in new air
conditioning or refrigeration systems. Older systems will still have them,
but you can't replace lost fluid if you have a leak.

Not with the older type of fluid, but you can replace it with the newer types.

George Patterson
Drink is the curse of the land. It makes you quarrel with your neighbor.
It makes you shoot at your landlord. And it makes you miss him.