in 2004 Honda recommended 5w20 be used on Honda engine

in 2004, Honda revised the recommended oil to be 5w20. They stated you could still use 5w30 because they "realize not all independent service stations carry 5w20" and that "5w30 will provide an acceptable level of protection".

So I guess you'd better follow what the manufacturer recommend, I think they spend $$$$ to figure this out.

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