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.
R134 is used in all cars after 1992 or so.
Refrigerant is added to a 1997 Pontiac Grand Am by removing the cover on the low pressure coolant line and attaching a can of refrigerant. The valve on the can is then opened and the system will automatically pull the refrigerant in.
It came from the factory with R12. Due to the high cost of R12, I would have it converted to R134.
R134a
you can buy the right refrigerant over the counter at checker auto or auto zone, the correct refrigerant is 134a
R134a
It is 134.
134a
all newer vehicles take r134a refrigerant.
r134
A/C uses 134-A refrigerant
R134a