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What type of freon for 1990 deville?

Updated: 10/20/2022
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12y ago

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If you're not the original owner of the car, I'd recommend you have a refrigerant purity test performed at a shop. A 1990 would have used R-12 - however, many R-12 systems were later retrofitted to R-134a, and this cannot be determined by visual inspection - they usually retained the R-12 schrader valves, even after conversion to R-134a.

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12y ago
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Q: What type of freon for 1990 deville?
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