1995
In which country?
All cars manufactured after 1993 were required to use R134a refrigerant.
the year that Henry ford sent out cars to Ontario, Canadaotherwise, 1938
1993 in the US
1976
1990
1995, was the last year for most cars. Anything 96 and newer uses R134a.
Honda began using R134a refrigerant in its vehicles starting in the 1992 model year. This transition was part of a broader industry shift away from R12, which was being phased out due to its ozone-depleting properties. R134a is considered more environmentally friendly and has since become the standard refrigerant in automotive air conditioning systems.
1984
after 1985?
1987
1992 was the first year some vehicles began to use R134a, and it was mandated in all vehicles by 1995.