I am replacing my Orifice tube along with the accumulator in my 5.3 Silverado. I was told to add a couple (2oz) of Pag to the accumulator when installing. My question is should I add the oil? If oil is added will the manufacturer make a diff? I’m talking about say Denso or some other brand. The vehicle has factory Pag 46 now. Should I use a synthetic or??? The system will be vacated of course. Thnx// firstname.lastname@example.org
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