R12 is original equipment
I don't think there is a Cressida in production now, although cars can have different names in various parts of the world. The Cressida we used to see in UK, was by Toyota.
r134
r134a
r-12
Freon is the brand of a type of refrigerant. A 1994 Toyota 4Runner uses R-134a type refrigerant which is the modern fluid used in air-condition systems.
Unless it has been converted to R134, the OEM refrigerant installed in 1991 was R12 Freon. I suggest you have it converted to R134 if it has not already been done.
Disposable refrigerant containers are only used for virgin refrigerant.
A 1993 Toyota 4Runner uses R12 refrigerant. The 1993 Toyota 4Runner requires 30 ounces of R12 for all engine types.
Not circuit breaker only fuses in cars that are used. Driver side kick panel 7.5a gauge fuse check it fist.
I always used 10w30 year round.
probably SAE 10W30
Refrigerant are used in refrigerator for cooling and dehumidifying indoor air.