It depends on the year, make and model because some started in 1992 while other started in 1995..............
All cars manufactured after 1993 were required to use R134a refrigerant.
R134a is the only freon for cars after 1994. Earlier cars can be retrofitted to R134a.
Most all cars and trucks started in late 1992 to 1993 but everything was R134a in 1994...
1995, was the last year for most cars. Anything 96 and newer uses R134a.
Freon gas? Mostly r134a.
1995
1993 in the US
No R134a is used only the cars, and R22 is only used for home central ac system. If you would like more information about R134a you can log on to www.idqusa.com.
Take it to an A/C shop.
It is R134a. Ford started the conversion in 1994 but not all Fords were using R134a that year. By 1996 all were using it. Look for a sticker on the A/C unit which lists the correct refrigerant. If you have R12 have it converted to R134a.
1973
It depends on the manufacturer, I believe ford went to it in the early 90's?