Changing AC compressor in 1989 GMC pickup truck S15 ...how much pag oil should I add...replacement compressor I got is empty of oil and refrigerant ...so have to add pag oil but dont know what type of pag oil i..e pag 46 or pag 50 or what?
and what is the quantity I should add ..also what is the capacity for r134a refrigerant?
and what is the quantity I should add ..also what is the capacity for r134a refrigerant?