Type of freon in a 1991 acclaim?

Hello!
I recently aquired a 1991 plymouth acclaim that is equipped with an air conditioning system, and i was wondering what type of freon it would use? any help will be greatly appreciated
Thanks.

Trent Reznick.

R12

thanks

hI I THINK THEY STARTED TO USE FREON 134A THAT YEAR.I HAVE A 93 AND IT STATES I HAVE 134A.LOOK UNDER THE HOOD AND IF IT ISN;T SOMEWERE THERE IT;S THE OLD FREON

hI I THINK THEY STARTED TO USE FREON 134A THAT YEAR.I HAVE A 93 AND IT STATES I HAVE 134A.LOOK UNDER THE HOOD AND IF IT ISN;T SOMEWERE THERE IT;S THE OLD FREON

They didn't start putting R-134A until the 1993 model year. 1992 and prior vehicles had R-12.