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Oil labelling explained

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by oilman, Jun 27, 2006.

  1. Dale Minton

    Dale Minton Senior Member

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    Thanks Tim, appreciated. I posted this to our other forum friends who on another thread were discussing the pros and cons of it's use. I hope they will find it helpful.

    Dale.
     
  2. Jimbo1959

    Jimbo1959 Senior Member

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    Your Mercedes:
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    There is so much information delivered here that I'm starting to get confused, so, if Tim, (oilman) could clarify please!!!

    I have an '09 E 350 CDi Sport Coupe which I am assured has a DPF fitted. From my reading on here and the owners manual I should use either 5W/30 or 0W/40 which meets 229.31 or 229.51.

    Have I worked it out properly Tim?

    One final question sir, Does it really matter which brand I purchase as long as the particular specification is met?

    The reason I ask is that, at work, they use mainly Coma oils although, I can also get Mobil 1 if necessary.
     
  3. John Laidlaw

    John Laidlaw Senior Member

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    In case Tim doesn’t pick up on this Jim, you need the Low ash oil 229.51 for your car and provided the oil meets this MB specification and is approved to that then it doesn’t matter which brand, Comma, Mobil, Shell, Fuchs or whatever.
    Until recently MB were very competitive strangely but I’m informed less so now. That said I’d still try MB Grangemouth or of course the sponsor on here , Opie oils.
     
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  4. Jimbo1959

    Jimbo1959 Senior Member

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    Thanks John, Being a total novice on MB I thought it'd be a good idea to ask, and confirm, rather than just dive in head first and possibly make a mistake. With a car of this value it's better to be safe rather than sorry.
     
  5. John Laidlaw

    John Laidlaw Senior Member

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    Not a problem , wise to be safe. Lovely cars deserve this strategy!
     
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  6. OP
    oilman

    oilman Forum Supporter Authorised Forum Supporter

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  7. Wighty

    Wighty Senior Member

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    If your car has a dpf , the inside of the exhaust tip is clean , if it doesn't it's black and sooty . Yes you do need 229.51 as said above . If you search 229.51 oil on eBay you can get 20 Liters of MB Branded oil for £60 delivered from a lot of the Merc dealers .
     
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  8. Wighty

    Wighty Senior Member

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    Looks like all 20L containers of 229.51 5w/30 MB oil have now disappeared from eBay :( (at least in the £60 region ) ...there are some ripoff ones for £200 .
     
  9. EXMERCTECH

    EXMERCTECH Senior Member

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    Mr Oilman.

    There's a thread going round about using motorcycle oil 20/60
    In the Mercedes with the 642 engine with DPF
    Basically saying IIRC the recommend oil is too thin.

    I'll try and find the original post.
    What's you view on Motorcycle oil in a diesel with DPF.

    Thanks
    Phill.
    (Ex Dolomite Sprint V8 Owner.)
     
  10. OP
    oilman

    oilman Forum Supporter Authorised Forum Supporter

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    Hi Phill

    Not a good idea. Bike oils are not formulated for DPFs and a 20w-60 is completely the wrong grade, offering very little cold start protection and is also very thick when hot, reducing protection and efficiency as well as putting more strain on the components.

    Okay, a 20w-60 is not going to burn off much, so might not affect the DPF much, but using such a thick oil is not going to help the oil.

    Cheers

    Tim
     
  11. thebiglad

    thebiglad Senior Member

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    Hi Tim, I wonder if you could advise me as well please. I'm about to take delivery of a 2007 CLS 320 cdi with 123,000 mls on the clock and full MB history.

    When I get it home I'll be going through it from front to back, so I need to know - if you can help me please - the specs of the following liquids:

    1. Engine oil

    2. Auto 7-speed oil

    3. Std Diff (not LSD) oil

    4. (Don't know if you get involved in coolants) Coolant spec.

    If you're fed up of people asking these sort of silly questions, just tell me to f-off - and I will ;););););)
     
  12. OP
    oilman

    oilman Forum Supporter Authorised Forum Supporter

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    Hi

    You need an engine oil that meets the Mercedes 229.3, 229.31, 229.5 or 229.51 specification if it doesn't have a DPF. If it does have a DPF, go for a 229.31 or 229.51 oil.

    https://www.opieoils.co.uk/c-716-mercedes-engine-oil.aspx

    If it doesn't burn much oil, any of the oils that meet those specs are fine, but if it does burn oil, go for one of the 5w-40s.

    This is ideal for the gearbox.

    https://www.opieoils.co.uk/p-68895-fuchs-titan-atf-4134-mercedes-mb-23614.aspx

    And this for the diff.

    https://www.opieoils.co.uk/p-982-fuchs-titan-sintopoid-fe-sae-75w-85-fully-synthetic-gear-oil.aspx

    This coolant is ideal.

    https://www.opieoils.co.uk/p-60204-...-longlife-antifreeze-coolant-concentrate.aspx

    Cheers

    Tim
     
  13. thebiglad

    thebiglad Senior Member

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    Brilliant Tim, you are a Star and Mercedes is your firmament ;);):D:D:):)

    Cheers
    Dave
     
  14. AnthonyUK

    AnthonyUK Senior Member

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    If it burns oil isn't it going to burn more using a 'thinner' oil e.g. 0w-40?
    Although I guess we don't really see much difference between 0w and 5w in UK.
     
  15. OP
    oilman

    oilman Forum Supporter Authorised Forum Supporter

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    A 0w oil is only thinner than a 5w when cold, so when the oil is up to temp and it would be burning off, a 0w-30 and a 5w-30 will be the same viscosity. A 0w-40 or 5w-40 will be thicker than a 0w-30 or 5w-30 when at operating temperature.

    Cheers

    Tim
     
  16. AnthonyUK

    AnthonyUK Senior Member

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    Thanks Tim.
    I read something about the thinner oil making its way past valve seals and worn piston rings but I guess that would be minimal.
     
  17. thebiglad

    thebiglad Senior Member

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    Hi Tim, sorry to bother you again, but the purchase of the CLS didn't go through so I've bought a CLK, details listed below:

    SLK 270 cdi

    VIN: WDB2093162F162228

    120,000 mls

    So what spec and quantity do I need for engine (don't know if it has a DPF), autobox and diff, please?

    Many thanks

    Dave
     
  18. Wighty

    Wighty Senior Member

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    Same 229.51 oil 5w30 is dpf friendly (if the exhaust pipe is sooty you have no dpf)
    ATF 236.14 . Fuchs atf4134 for the gearbox
    Diff is Fuchs Titan sintopoid 75/85 FE
     
  19. thebiglad

    thebiglad Senior Member

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    Than
    Thanks again Wighty - just wanting to get everything in stock for when she gets home the week-end of the 8th.
     
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