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Engine oil for M276

MercC350Coupe2011

Active Member
Joined
Sep 4, 2020
Messages
99
Location
United Kingdom
Car
Mercedes C350 coupe AMG sport 2dr 2011
Hi all,

I am about to have my engine oil change for the first time since I got the car a few months ago. It's a C350 coupe with the M265 3.5 naturally aspirated engine with 306bhp.

What does this engine need in the UK? Does anyhave have the manual to take a look?
 
Try here.


 
Try here.


So depending on the Manufacturer you select a different specs oil? I didn't know that. I thought it had to do with the car and the weather only!
 
I use Fuchs for my car, looks like you need a 229.5 spec oil so these would be suitable.

Fuchs TITAN Supersyn 229.5 SAE 5W-40 xFUCHS PETROLUB SE, Mannheim/Deutschland
FUCHS TITAN Supersyn Hi-TBN SAE 5W-40 xFUCHS PETROLUB SE, Mannheim/Deutschland
Fuchs TITAN Supersyn LONGLIFE 5W-40 xFuchs Petrolub AG, Mannheim/Deutschland
 
If you took your car to Mercedes main dealers they would probably use their own Mercedes branded oil, 5w/40 229.5 spec.
Some are using the same grade and spec Shell Helix brand.

You'll save money buying in bulk for example

 
MB provides a list of engine oils that were submitted to them for testing and were found to be compliant with the relevant MB Spec Sheet (in the case of petrol engines, it's MB229.5). These are 'Approved' engine oils.

At the same time other manufacturers will self-certify their engine oil as compliant with the relevant MB Spec Sheet, in this case the terminology used is typically 'Meets or exceeds MB229.5'. This means that the oil manufacturers confirm that their product is compliant with MB229.5, even though they have not submitted it to MB for testing and it is therefore not 'Approved', but only 'Meets...'

That said, MB sell their own-branded oil, which you can buy from MB dealers' eBay shops. It is cheap and 'Approved' (obviously).
 
The indi I use (MBS) always uses the MB branded oil

And I have the same (excellent) engine as you
 
Terry at Wayne Gates used MB-branded oil on my car, as did MB Brooklands. MB Temple Fortune used Shell Helix Uktra, and Olly at PCS used Mobil. This is not to say that they will never use anything else, but this was what they used on the occasion that they serviced my cars.
 
Hi , I have the twin turbo charge version of the M276.

I have the car serviced by Mercedes annually but has an engine oil service at 6 months , or 1500 miles.

Mercedes dealer I use uses Shell engine oil but on the 1500 oil change service I always use different Mercedes approved oils.

Each engine oil has pros and cons to different brands so should keep the engine cleaner !
 
I have the car serviced by Mercedes annually but has an engine oil service at 6 months , or 1500 miles.

Why after 1500 miles, don't you have any faith in the oil ?
 
Hi , I have faith in quality engine oils but the car also has an inspection service.

I feel that an annual service / 15000 mile service period is to long.

There's a case to argue that very low annual mileage cars should have more frequent oil changes, because the engine doesn't get hot enough for long enough to remove contaminants that dilute the oil (moisture, and in the case of petrol, also fuel).
 
MB provides a list of engine oils that were submitted to them for testing and were found to be compliant with the relevant MB Spec Sheet (in the case of petrol engines, it's MB229.5). These are 'Approved' engine oils.

At the same time other manufacturers will self-certify their engine oil as compliant with the relevant MB Spec Sheet, in this case the terminology used is typically 'Meets or exceeds MB229.5'. This means that the oil manufacturers confirm that their product is compliant with MB229.5, even though they have not submitted it to MB for testing and it is therefore not 'Approved', but only 'Meets...'
Do MB actually test - or merely approve the ingredients?
(Without submitting the ingredients no approval is awarded).
 
Did you mean the M265 engine? That’s the twin turbo in-line 6 3.0 litre producing 408 bhp. I suspect you mean the M276 3.5 litre V6 producing 306 bhp, like mine.

This is the relevant page from the manual for mine.

CBC41E81-3D97-46FC-9C3B-A4CABA98E490.jpeg

Go to the on-line page it tells you and you’ll see a massive list of all the approved 5W-40 oils

 
Do MB actually test - or merely approve the ingredients?
(Without submitting the ingredients no approval is awarded).

My understanding is that an actual test is taking place to confirm that the oil performs as per the Spec Sheet's requirements, however whether this test is carried-out internally at MB, or perhaps the oil is submitted to an independent laboratory for testing, I don't know.

Also, it's worth noting that the MB Spec Sheet for engine oil, isn't specific to your type of engine... unlike (say) ATF or Coolant, where different transmissions and cooling system have different fluid spec (respectively), when it comes to engine oils, there is just one spec to cover the entire Diesel engine range, and (almost) just one spec to cover the entire petrol engine range.

So it would seem that the MB Spec Sheet for engine oil represents MB's general view of what engine oil performance should be, rather than specifically tailored to their engines.

The same applies, BTW, to other things such as MO tyres - a (say) 205/55R16 MO tyre is exactly the same regardless of which model of Mercedes it is fitted to, and regardless of whether the car is RWD, FWD, or AWD - so, again, MO tyres represents the performance compromise that MB favours in general, rather than being tailored specifically to a certain model of car.
 
My understanding is that an actual test is taking place to confirm that the oil performs as per the Spec Sheet's requirements, however whether this test is carried-out internally at MB, or perhaps the oil is submitted to an independent laboratory for testing, I don't know.
I suspect that if tested at all, the test is actually an analysis looking for concentrations of what is expected.
Also, it's worth noting that the MB Spec Sheet for engine oil, isn't specific to your type of engine... unlike (say) ATF or Coolant, where different transmissions and cooling system have different fluid spec (respectively), when it comes to engine oils, there is just one spec to cover the entire Diesel engine range, and (almost) just one spec to cover the entire petrol engine range.

So it would seem that the MB Spec Sheet for engine oil represents MB's general view of what engine oil performance should be, rather than specifically tailored to their engines.
And what is expected is the additives in the quantities known to pass various other tests by other organisations. Tests in relation to the likes of tappet scuff, oxidation resistance, anti foaming, etc - that type of thing.
 
Did you mean the M265 engine? That’s the twin turbo in-line 6 3.0 litre producing 408 bhp. I suspect you mean the M276 3.5 litre V6 producing 306 bhp, like mine.

This is the relevant page from the manual for mine.

View attachment 113781

Go to the on-line page it tells you and you’ll see a massive list of all the approved 5W-40 oils

Hi my car produces 330 bhp
 
Did you mean the M265 engine? That’s the twin turbo in-line 6 3.0 litre producing 408 bhp. I suspect you mean the M276 3.5 litre V6 producing 306 bhp, like mine.

This is the relevant page from the manual for mine.

View attachment 113781

Go to the on-line page it tells you and you’ll see a massive list of all the approved 5W-40 oils

Yes I mean m276. By accident I pressed in the keyborad 65 intead of 76 lol
 
Did you mean the M265 engine? That’s the twin turbo in-line 6 3.0 litre producing 408 bhp. I suspect you mean the M276 3.5 litre V6 producing 306 bhp, like mine.

This is the relevant page from the manual for mine.

View attachment 113781

Go to the on-line page it tells you and you’ll see a massive list of all the approved 5W-40 oils

Hi, In the pic below you could see the proposed oils for my Mercedes. Is says 229.5 or 229.6.

In your list it says 229.5 or 229.3. Do you know what are their differences? The 229.5 seems to be the most popular of them all though.

Untitled1.png
 
Hi, In the pic below you could see the proposed oils for my Mercedes. Is says 229.5 or 229.6.

In your list it says 229.5 or 229.3. Do you know what are their differences? The 229.5 seems to be the most popular of them all though.

View attachment 113815

MB229.6 supersedes MB229.5, which supersedes MB229.3. All three are permissable for use in your engine, though the later spec is the 'better' oil. So the 'best' engine oil you can buy is 229.6, but because it is a relatively new standard (2018) you might struggle to find it - in comparison, MB229.5 is far more common and therefore a more practical choice.

For MB229.6 Approved oils, see list here:


See also:


That said, MB229.6 is only available as 0w-30 and 5w-30, and it is aimed at providing lower fuel consumption, so if you are after 5w-40 then it will have to be MB229.5.
 
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