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1990 Porsche 944 Question: My 1986 PORSCHE has R12 can I add 134a into the system or do I need to vacuate?



, w/o Turbo, Tulare, CA, August 23, 2012, 13:53

I have guages and am mechanical inclined, do I need to evacuate the system or can I add the 134a with the R12?

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  • Answer #1

    August 23, 2012, 16:07

    Need to change ovet to R134A per service manual. Don't mix them.

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