R12 To R134a Conversion CAR AIR CONDITIONER R12 TO R134 CAR AIR CONDITIONER RETROFIT WITH R134a Cool Car has invested in equipment to allow a specially developed R12 replacement gas to be used known as R134a and have already carried out many conversions to a range of vehicles, including: 1988 Volvo 240 1984 Porsche 928s … Continue reading R12 to R134a Conversion