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    Recommended Oil For 2002 Z28/LS1 Engine

    Recently purchased a 2002 Z28 with the LS1 engine. Engine has 22,000 miles on it. I changed the oil and used Mobile 1 synthetic. No history of previous oil changes, don't know if the previous owner ran regular oil or synthetic. Should I stick with the Mobile 1 or use a good quality 10W 30 oil...