91 protege air conditoing question

[91protegeDX]

i have a 1991 mazda protege DX and the A/C no longer works cause the refrigerent leaked out but im gonna fix the leak but the system runs on R12 and as you all know they dont make that anymore sooo can i run the new refrigerent in my old system? or am i gonna have to change some stuff? or is there a type of refrigerent that will work for my system and i wont have to change anything?

 

[11B-33T]

My 92 LX A/C gave up the ghost in 2000. I had a local A/C shop convert it to an R-134A (sp) system and I've had no issues since then. It was around $200 since he cahnged out some necessary components. Good luck to you ...