A 1998 Buick would have been built with R134a.
Would have been built for R12, can be converted to R134a.
After 1992- r134A Before 1992- R22 but it need to be retrofitted for R134 if it hasn't been done already. It is ILLEGAL to use R22 in autos.
The original refrigerant installed at the factory in 1973 was R12 (Freon). If it has not been converted to R134a, I suggest you convert it now, if it is leaking and needs repair. R12 is no longer in production and the dwindling supply is very expensive. Much cheaper to convert it to R134a.
CFC-12 which a shop has to do. To use r134A you need to convert the system
It came with R12. Due to the high cost of R12, I suggest you convert it to R134a.
Simac autos
R134a is a refrigerant gas
It is still possible to aquire R12 Freon, but the cost is excessive. My advice is to convert the system to R134a.
It came with R12 (Freon). Look for a sticker on the unit, as it may have been converted. If not convert it to R134a. My advice, is, take it to a professional.
Can you mix r134a with r410a?
Unless it has been converted over to R134 it came with R12. I suggest you convert it to R134a. R12 is very expensive.