Mechanics

REFRIGERANT CAPACITY

1991 Buick Roadmaster

Air Conditioning problem
1991 Buick Roadmaster V8 Two Wheel Drive Automatic 158000 miles

Can you tell me what the refrigerant capacity is for this car? It has been converted to 134a and I am replacing the compressor so it will be a complete refill
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Rick.walsh
August 18, 2010.



The original capacity when it was R12 is 50 ounces but when you retrofit to R134A, you only charge at 80% of the original charge which would be 40 ounces.

Wrenchtech
Aug 18, 2010.