Best oil.

[Allan]

When I change my oil at the end of the season I want to use the best I can buy. The engine is a Beta 50 and the manual specifies SAE 15W/40 API CF (CD or CE). Halfords, chandlers and the supermarkets seem to sell the same stuff in different containers. Is there somewhere to buy better quality oil?
Allan

 

[sailorman]

When I change my oil at the end of the season I want to use the best I can buy. The engine is a Beta 50 and the manual specifies SAE 15W/40 API CF (CD or CE). Halfords, chandlers and the supermarkets seem to sell the same stuff in different containers. Is there somewhere to buy better quality oil?
Allan

No, as long as its the same as that specified. i use Smkt oils

 

[VicS]

What do you mean by "better quality"

Halfords sell several well known brands of oil in addition to their own.

I've no idea what supermarkets sell.

When ever possible I buy Castrol oil !

 

[Hoolie]

I think there have been previous threads about this. Modern synthetic oils require high cylinder temperatures to be effective. Marine diesels don't provide this and the "high tech" additives don't work and foul the engine. Just stick with the oil recommended for your engine. For ours a good quality mineral oil is just what's needed.

 

[PetiteFleur]

In my Beta 25 I use Comma oil from my local car parts supplier - from memory - a straight 15w40 mineral oil. I was told NOT to use a Super Dooper expensive oil by Beta themselves.

 

[Golf Charley]

If you want to spend money to prolong the life of your engine, use the oil commended by the engine manufacturer, but change the oil twice as often. End of season, and then after about 10 hours use in the new season

Change it mid season aswell if you want to, but using expensive, high tech oils designed for cars, may shorten engine life

 

[theoldsalt]

Yes, you better believe it.
Cheapest is the best.
Make the most of it. It's probably the only time when something for a boat costs less!!!!!

B O A T Break Out Another Thousand

 

[Latestarter1]

When I change my oil at the end of the season I want to use the best I can buy. The engine is a Beta 50 and the manual specifies SAE 15W/40 API CF (CD or CE). Halfords, chandlers and the supermarkets seem to sell the same stuff in different containers. Is there somewhere to buy better quality oil?
Allan

In majority of marine applications you are barely streching your lubricant.

Laudable that you are looking for the best, supermarket/Halfords stuff will do perfectly, however does not always represent the best value.

For example I shop around, generally Shell Rotella T 15W40, Rock Oil Guardian Theta 15W40 or TOTAL RUBIA TIR 7400 15W40 from local agricultural suppliers comes in just under £50 per 25 liter tub inc VAT. B&Q, Halfords selling own brand 15W40 with little in the way of technical specifications on label around £12 for 4 liter.

Dependant on your Kubota oil pan option you will get at least two lube services at maximum of £25 a pop with decent lubricant.

 

[Alfie168]

Just use the oil grade recommended by the engine manufacturer. If the right spec & grade is on the side of the container it matters not who made it as it meets the standard. Almost your only enemy is condensation or water in the oil, and thats why you change it, as you are very unlikely to test the oil itself to anywhere near its limits.

An additional change of oil can never do any harm to your engine, but is often more about the peace of mind of the owner rather than the health of the engine. Don't forget to change the oil filter. Buy a decent one that is up to engine manufacturers spec, even if it costs a few quid more.

Tim

 

[Sans Bateau]

This should IMO be a permanent link on the forum, see below:

http://coxengineering.web.officelive.com/oil.aspx

 

[Kwik Decision]

When ever possible I buy Castrol oil !

Castrol is now owned by BP. In countries where both brands of oil are sold, sometimes Castrol oil is promoted as the premium brand, and other times BP is the expensive one. The formulation doesn't change. Therefore if you can find an equivient BP oil cheaper than the Castrol, then go for it, as it is the same stuff.

BP also own the Duckhams brand, but decided to shut it down a while ago, rather than competing with themselves.

 

[CreakyDecks]

I was told a long time ago that the best thing you can do for a diesel engine is buy oil at half the price twice as often.

 

[AntarcticPilot]

I am reminded of a "Giles" cartoon, where Grandma is complaining about something topical in one of Giles' wonderfully detailed drawings of an old fashioned hardware shop. As always with Giles, there was much subtle humour in the rest of the cartoon - never mind the caption! But what I remember was a rather smart looking metal tank labelled "Best Oil" and next to it an ancient looking barrel labelled "Worst Oil"!

I wish I could find the cartoon and provide a link!

So, the moral is, buy "Worst Oil" for marine diesels

 

[sailorman]

Castrol is now owned by BP. In countries where both brands of oil are sold, sometimes Castrol oil is promoted as the premium brand, and other times BP is the expensive one. The formulation doesn't change. Therefore if you can find an equivient BP oil cheaper than the Castrol, then go for it, as it is the same stuff.

BP also own the Duckhams brand, but decided to shut it down a while ago, rather than competing with themselves.

Do they make the Asda stuff as well

 

[Csail]

Chuck in standard oil and add this
http://www.prolong.com/A_ET.html

 

[oldfatgit]

You might try this lot http://www.morrislubricants.co.uk/scripts/prodList.asp?idCategory=91

 

[rotrax]

This should IMO be a permanent link on the forum, see below:

http://coxengineering.web.officelive.com/oil.aspx

+1!

 

[Latestarter1]

This should IMO be a permanent link on the forum, see below:

http://coxengineering.web.officelive.com/oil.aspx

All cut and paste stuff, however laced with comments sadly lacking in objectivity, there is zero data to support comments regarding comments regarding TBN. Quoted conversation with Shell chemist who is not what one would expect from a chartered engineer, more like a couch engineer.

 

[jimbaerselman]

All cut and paste stuff, however laced with comments sadly lacking in objectivity, there is zero data to support comments regarding comments regarding TBN. Quoted conversation with Shell chemist who is not what one would expect from a chartered engineer, more like a couch engineer.

Why don't you tell us what errors coxengineering published in this document, then, rather than just sneering (with a sad lack of objectivity and zero data) that this is "cut and paste stuff . . . [from] a couch engineer?"

 

[Sans Bateau]

You might try this lot http://www.morrislubricants.co.uk/scripts/prodList.asp?idCategory=91

They dont do a API CD