134a replaced R12 about 1995.
R134a freon...................
R12
R134a
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.
R134a
R134a
It does not use Freon as a refrigerant. It uses R134 refrigerant.
All 1996 and newer vehicles use R134a refrigerant, which is available for the DIY at an auto parts store
R-134
R134a
R134a
R134a