Engine Oil type and source

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Airscrew
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Engine Oil type and source

Post by Airscrew » Thu May 19, 2016 2:55 pm

Hello to all.
Greetings.

New to the forum, and now a new and proud owner of FORFIVE, a '77 Centaur on the Hamble (anyone local?).
Although well maintained, it will be a project, I am well prepared and braced for the maintenance and attention required.

I have spent some days scouring this forum, and other sources, including the MD11C workshop and operations manuals.

No doubt I will have a range of questions that I cant easily answer.
Starting with something very basic.
Engine Oil.

The manual says:
Viscosity
over +10°C (50°F) Volvo Penta CD oil Double grade ..... SAE 20W/30
under +10°C (50°F) Volvo Penta CD oil Single grade .... SAE 10W
Does this indicate a 10W20 or a 10W30 oil??

I have read on this Forum 10W20 and mineral based, and from supermarkets (thanks uncle albert, and your many posts).
But I cant (yet) find a 10W20 mineral oil on the web in the UK.

So,
What Oil do people recommend to put in in real life?
Viscosity, Brand, Source, and Price, please.

And,
ditto for the oil filter (MD11C).

And ofcourse,
any other tips/tools for an oil top-up and soon to come oil and filter change would be welcome.

Many thanks.
Jonathan.
Westerly CR1826 Centaur 'ForFive' based Hamble

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Re: Engine Oil type and source

Post by Jolly Roger » Thu May 19, 2016 6:09 pm

Welcome Jonathan to the forum and the wonderful world of owning and sailing a Westerly.

For the MD11 you do not need a synthetic oil, so a general mineral oil of any brand will be fine on an engine of this age.

Sorry I cannot help further, but I have not been near a MD11 for 40+ years.
Roger
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Re: Engine Oil type and source

Post by Nigel Birch » Thu May 19, 2016 6:27 pm

There's a school of thought that says modern engine oils with all their dispersants and detergents and additives are not great for old engines and can lead to bore glazing:

https://coxengineering.sharepoint.com/P ... gines.aspx

I've stuck with morris lubricants golden film SAE30 for my Buhk DV20 for the last 8 years. They also do a SAE20:

http://www.morrislubricants.co.uk/golde ... r-oil.html
Last edited by Nigel Birch on Fri May 20, 2016 9:53 am, edited 1 time in total.
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Re: Engine Oil type and source

Post by TyroSailor » Thu May 19, 2016 10:33 pm

I have a '75 Centaur - at Southampton, not far from Hamble - which until recently had a Volvo Penta MD2b in it, which I believe is similar to the MD11B. I found a place close to Northam Bridge in Southampton (a cable from my boat as the oystercatcher flies, 3/4M by road) that does all sorts of old-fashioned oil.... hang on a minute - I'll see if I can find it....

Yes - here we are http://www.cplubricants.co.uk/

They get it from the refinery and mix it before wholesaling it, so you won't find it any cheaper. In fact I have a litre of it left over which will be no good for my new engine, so you could have that.
Experience: That which would have been most useful five minutes before you acquired it.

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Re: Engine Oil type and source

Post by Uncle Albert » Fri May 20, 2016 8:36 pm

And the oil filter numbers you require are:-
Volvo Penta part no is 8344337
and Uni part equivalent UGCGFE210. So find your local motor factor and quote the latter ( they can cross ref to a comparable type from whoever supplies them), and save about a fiver.

Unc
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Re: Engine Oil type and source

Post by chris.moody » Sun May 22, 2016 4:42 pm

Jonathan, we have a 1978 Centaur close to you (Bucklers Hard). This is the oil I useImage


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Re: Engine Oil type and source

Post by Nigel Birch » Sun May 22, 2016 6:34 pm

SL CH-4 is for a petrol engine.....
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Re: Engine Oil type and source

Post by chris.moody » Sun May 22, 2016 7:23 pm

SL CH4 is suitable for petrol and diesel
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Re: Engine Oil type and source

Post by Nigel Birch » Sun May 22, 2016 11:31 pm

SL 2001 Gasoline Engine Service

Category SL was adopted to describe engine oils for use in 2001. It is for use in service typical of gasoline engines in present and earlier passenger cars, sports utility vehicles, vans and light trucks operating under vehicle manufacturers recommended maintenance procedures. Oils meeting API SL requirements have been tested according to the American Chemistry Council (ACC) Product Approval Code of Practice and may utilize the API Base Oil Interchange and Viscosity Grade Engine Testing Guidelines. They may be used where API Service Category SJ and earlier categories are recommended.

http://www.oilspecifications.org/api_eolcs.php
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Re: Engine Oil type and source

Post by chris.moody » Mon May 23, 2016 9:14 am

The spec sheet that came with this oil said it was suitable for both petrol and diesel engines. I have no great interest in the technicalities of oil specifications. This type of oil works for me, and my MD11C still runs after using it for six years, but others may wish to buy different oils.
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Re: Engine Oil type and source

Post by sgr143 » Mon May 23, 2016 11:08 pm

Jonathan - I've just done my very first oil change on the Bukh on my Merlin, along with oil and fuel filter changes: putting the diesel engine course I went on earlier this year into practice. (Go on a course- they are good!). And yes, it worked fine afterwards, so high-five for me!

I used one of those "suck it up the dipstick tube" things with a round container and a hand-pump for creating a partial vacuum. It worked fine, but even with the engine oil warm (I ran the engine for about 15 minutes), it still took a surprisely long time to get all the oil out. Even warm oil is quite viscous, and the suction tube is small bore and rather long. (If I remember my 1st year physics correctly, the pressure needed to drive a viscous fluid along a pipe goes up linearly with viscosity and pipe length, but inversely as the fourth power of the tube diameter.) So have patience.

The suction device also proved handy for sucking up spilt diesel from the bilges after my filter changes...

Other hints - take a big roll of heavy-duty kitchen wipe, and couple of good thick non-leaking plastic bags to drop the used oily things (old fliter, rags,) in straight away. And a funnel of course- though the drain spout supplied with the extractor pump worked fine for this purpose for me. If the oil filter is screwed on very tight you might need a chain wrench.

Good luck!

Steve
Last edited by sgr143 on Tue May 24, 2016 7:43 pm, edited 1 time in total.
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Re: Engine Oil type and source

Post by steve parry » Tue May 24, 2016 10:51 am

Jonathan,

I agree with the many comments and suggestions etc above. One little tip would be;To buy a pack of baby disposable nappies!! You use about two a year to suck up all the diesel/oil you drop into the bilge, I place them under the engine before I start the service and you will be surprised how much they hold!! It saves yards and yards of paper towel. My pack has lasted 4 years so far so very cost effective.

Regards

Steve

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Re: Engine Oil type and source

Post by aquaplane » Tue May 24, 2016 9:36 pm

It makes me laugh when my son, who is still young enough to know everything, tells me that the 15/40 oil I use will kill instantly the engine which has 10/30 oil specified.
My oil comes from a 200l drum at my local garage, I take the empties back, and is <£10 for 5 litres. It has numbers after it's name and everything.
Bob.
Centaur now sold. Boating from Tarbert.

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Re: Engine Oil type and source

Post by Airscrew » Mon May 30, 2016 5:29 pm

Many thanks to all your enthusiastic replies. Suggestions for nappies, oil removal and types are all well noted.
Westerly CR1826 Centaur 'ForFive' based Hamble

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Addendum to engine oil types

Post by Wolfgang » Tue May 31, 2016 8:24 am

As an addendum to the discussion about oil grades, I might add a link to a page from API about oil categories, both petrol and diesel engines:

http://www.api.org/products-and-service ... tab_diesel

The PDF document of those categories can be found here (though I don't know what the lady might suggest ;) ):

http://www.api.org/products-and-service ... -oil-guide

So if you check the API list, you'll see that the oil Chris uses, covers both petrol engines with SL specifications and diesel engines with CH-4 specs.
For my Volvo 2003 I use any cheap 15W/40 oil which covers CD, CF or CH-4 specs.
Wolfgang - s/v Adventure Galley, OR2

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