1990 Toyota Cressida Question

1990 TOYOTA CRESSIDA
130 MILES • 6 CYL • 2WD • AUTOMATIC
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SHANAZ772
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please
i need your help
1.every things in my ac car system is new(compressor,condenser,)
with 134 Refrigerant gas but the problem is the air is moderate cooling and when my car is in slowly way the air is warm , so what can i do

2.how can i change ac Refrigerant gas form 134 to 12 .
because i read the type 12 is cooler than 134 in ac car system Refrigerant gas R12

thank you
Aug 29, 2010 at 8:47 AM
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RASMATAZ
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You car takes the R-12, to use R134 you need to have it retrofitted
Aug 29, 2010 at 8:55 AM