09 gmc sierra 150,000 mi compressor making whirring noise.
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local and half.
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- This product had a total of 11 reviews as of our last analysis date on Mar 9 2022.
the soil is packed with 50 percent 134A in order to allow a pressurized container for the oil to flow into your AC system. True... Read More
09 GMC Sierra 150,000 mi compressor making whirring noise.this quieted the noise and cools better than before..
Posted by a reviewer on Amazon
That says it is pag-100 (polyalkylene glycol alkyl ether 100).