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Re: Which viscosity of pag do you use for GM vehicles
Posted to HVAC Forum on 4/10/2005 3 Replies

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It seems Delphi was having a huge amout of "KNOCKING" complaints on their R-4 compressors. According to the warehouse I buy from, adding a small amount?????? (An ounce or so) through the suction port ... Login to read more.

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