Sajeev, I’m looking for advice on the oil-in-harness issue for my 2014 Mercedes E350 (80,000 miles). I was performing preventive maintenance and currently have no check engine lights or fault codes.
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Piston Slap: Classic Oil for a Classic Packard
I have a 1941 Packard 120 sedan, and Castrol GTX 20w50 was recommended. Is this correct? Thanks! Sajeev answers: Provided you were recommended Castrol GTX’s classic formulation, this is a good choice.
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