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The 1997 Pontiac Grand Prix GTP will use R-134A. Cars prior to 1994 used R-12, and after 1994 all cars were equipped with R-134A. The reasoning for this is because R-12 refrigerant contains CFCs (chloroflourocarbons) which deplete the ozone layer, whereas the more modern R-134A does not contain CFCs. Hope this helps!

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17y ago

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