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Oil recommendation ...


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worth noting that PCM (no, not indmar) has changed it’s recommended oil and rather dramatically. 

does anyone have evidence of an engine failure for having the wrong oil?  This is one of those never ending debates of extraordinarily low stakes. I’m convinced it’s the change interval that matters far more than the oil. 

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Thanks guys I did my own research and it looks like they did change the oil to the 5w30 stuff. They also mentioned you don't have to drop everything and  change out the 15w40. I will use the 5w30 now.

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