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McFly
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Joined: 10/22/18
Posts: 176
Engine Oil type to use?

There's a great article on the site for changing your oil for newbies (like me). The author uses 10-w30. But I see diesel motor oil on the shelf too.

What kind oil are you all putting in the M-35BC?

Mike

Jackfish Girl, 1999, C36 MKII, Tall Rig, Wing Keel, In-mast furling, Phinneys Harbor, Bourne, MA

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Tomspo1
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Joined: 10/5/19
Posts: 4

I use Rotella T 15-40. 

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sidthekid
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Joined: 6/1/16
Posts: 17

Our yard recommnends Rotella T4 15W-40 as well.(upper Chesapeake)

McFly
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Joined: 10/22/18
Posts: 176

Thanks guys, one last question. The westerbeke Universal manual recommends not mixing Brands because of the combination of the different additives that each brand may use. I will pump out as much as I can, but from reading it seems that most people only get about three and a half quarts out of the engine leaving a 1/2 to a full quart behind. You think I should be concerned with adding Rotella to the remnants of last year's Valvoline? My thought is since I change it annually and I don't achieve a hundred hours anyway, the chemical combination damage would be minimal. Curious The Forum thoughts...

Mike

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Haro
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Joined: 11/7/14
Posts: 271

One point that has not been mentioned is to use engine oil that is for diesel engine.

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