Forum: Diesel Engine Forum
05-28-2012
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Replies: 14
Views: 788
Re: HD Oil
Thanks jrd22. Shell Rotella T it is.
Jack
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Forum: Diesel Engine Forum
05-28-2012
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Replies: 14
Views: 788
Re: HD Oil
Yah, the 4-91 is based on the BMC 1.5. I've been reading all I can about both and am beginning to understand diesels a little better after of lifetime of owning/racing/rebuilding carbureted and FI...
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Forum: Diesel Engine Forum
05-28-2012
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Replies: 14
Views: 788
Re: HD Oil
Guess I was influenced by comments I've read like:
--Best reason I've heard for not using "modern detergent" oil is for fear of loosening up old crud in the engine and sending it on a destructive...
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Forum: Diesel Engine Forum
05-28-2012
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Replies: 14
Views: 788
HD Oil
The service manual for the Westerbeke 4-91/W30 in the boat I recently purchased calls for SAE 30 oil in the motor but makes no mention of whether it should be straight 30 wt or HD30. Does it make a...
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