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AuthorMessage
arthur
arthur

Posted: Sun Sep 27, 2009 6:04pm

Post Subject: diesel engine oil

what oil should i use in a c b marine b m c 1.8 also what a p i should it be

Tony-B
Tony-B

Posted: Sun Sep 27, 2009 7:11pm

Post Subject: diesel engine oil

What is a "p i"? Calcutt Boats have the manual available as a download on their website so you use the information in there. I expect it will be SAE 15W40 in API CC, CD or CE. If this is an old engine I am sure SAE 20W50 in API CC will also be fine. Knowing the BMC range you may find it easier to get the 15W40 in API CF and although there may be a theoretical increased risk of bore glazing I suspect that one will be OK as well.

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