For my 1996 Corolla with 2nd gen 4AFE engine, I've decided to use weight 40 multigrade mineral oil, pwede API CH-4 or CI-4, kung may mura SAE 5w40 mineral oil, I'll stick to it with B178 Baldwin oil filter. For now, Mobil Delvac MX muna, available in five liter jug at Php1,130, with its high TBN and zinc, well protected ang engine ko kahit extended OCI pa.

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