Is 10W60 oil actually too thick?...

Discussion in 'E90 Saloon / E92 Coupe / E93 Convertible M3 (2008-2013)' started by Caveman73, Feb 15, 2017.

  1. 12 Apr 2017 at 1:10 PM #61
    WinFreak

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    Hopefully you'll be able to spot whether it's been owned by someone who cared about the car or not.

    I've seen enough e92s in my hunt that hadn't.
     
  2. 12 Apr 2017 at 1:13 PM #62
    sash87

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    It's down to how they are driven. Look at any US car page and it's all about 1/4 times, maximum power, flooring it lights to lights etc. Plus in some states it's 40 degrees in the summer and others -20 in the winter...

    Stick to what BMW recommend.
     
  3. 12 Apr 2017 at 3:52 PM #63
    MaximumBob

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    Absolutely not.
    Do I think that BMW have systems in place to catch mistakes as early as possible, make design changes to reduce the cost to warranty repairs and therefore maximise profit?
    Absolutely yes.
    To maintain the recommendation for a 10W60 oil when to change to a lower viscosity would save them £millions in warranty engine replacements suggests idiocy on an industrial scale. Its simply not credible.

    Indeed

    I think this is also correct.
     
  4. 12 Apr 2017 at 4:04 PM #64
    jjm3uk

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    This one could go on as long as the e36 M3 oil debate.

    I think I'll stick to 10w60 and do what I usually do, let it warm up a little before driving and be gentle until the oil is fully warmed up before opening the taps.

    As much as I am temped too use Fuchs 5w-40
     
    Last edited: Apr 12, 2017
  5. 12 Apr 2017 at 4:06 PM #65
    Neil McRae

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    after seeing E46 engine failures owing to the wrong oil being used - is it really worth it saving 2 quid ? I don't think so.
     
  6. 12 Apr 2017 at 4:22 PM #66
    abeardo83

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    For me it's simple - the 10w60 has a much higher shear strength that 5w40. This is what 99% of the time keeps your bearings, cams, chains etc away from other metal contact.

    The oil may be thick, but it's ability to resist load is far greater than a 0w30 or 5w40. It'll be this that the engineers bank on.

    As the RPM increases, so does the pressure. You REALLY don't want the oil to shear at 8k rpm!!!
     
  7. 12 Apr 2017 at 5:27 PM #67
    ChrisRX

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    Fuchs Titan Race 10w60. Done.
     
  8. 13 Apr 2017 at 2:14 PM #68
    Mr Reeves

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    :thumbsup:
     
  9. 13 Apr 2017 at 2:26 PM #69
    abeardo83

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    Whyso? Because it's Ester based? Does it have a benefit?
    I thought esters turned in to acids if in contact with water and copper?
     
  10. 13 Apr 2017 at 3:16 PM #70
    ChrisRX

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    Ester based, yeah. The Castrol isnt a true Synthetic. Nearly, but not quite!

    When you change the Fuchs you will notice it is still golden in colour whereas the Castrol will be quite black.
     
  11. 13 Apr 2017 at 3:25 PM #71
    abeardo83

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    Black is a good thing though. It shows that the oil is removing crap from your engine and suspending it in the oil.
     
  12. 13 Apr 2017 at 4:14 PM #72
    Si2K

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    What makes it 'true'?
     
  13. 13 Apr 2017 at 4:19 PM #73
    MaximumBob

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    When in fact it is.
    To comply with EU regs, an oil can only be called fully synthetic when it is.
    In the USA its not the same.
    IIRC The base oil stock must be fully synthetic and only a small amount of non synthetic material is allowed...usually the additives and its carrier.
     
  14. 13 Apr 2017 at 4:26 PM #74
    Si2K

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    I notice a lot of 'here's my exhaust on cold start' proceeded by people revving the tits off t too ...
     
  15. 13 Apr 2017 at 5:07 PM #75
    alpina527

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    Also when the M3 was introduced in USA, there were some M3post forum 'experts' recommending they run the car in by nailing it from day 1. :confused:
     
  16. 13 Apr 2017 at 6:24 PM #76
    Neno

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    ^this.
    It's an easy spot, steam coming out of the exhaust = not even vaguely warm.
     
  17. 14 Apr 2017 at 6:10 PM #77
    schermerho

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    I think 10w60 is ideal for European and North American climates. In the Middle East etc I think a slightly lighter oil spec like 0W wouldn't be counter productive either where you need a lighter oil to get to the top of the engine as quickly as possible and a 10W spec might be a little too heavy.
     
  18. 14 Apr 2017 at 7:26 PM #78
    abeardo83

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    That makes no sense?! Why would a hotter climate need a lighter oil?!
     
  19. 14 Apr 2017 at 8:12 PM #79
    JB82

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    Just got some Millers Nanodrive 10w 60 for mine. Hoping it does a good job in there.
     
  20. 16 Apr 2017 at 1:43 AM #80
    reggid

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    this is sensible advice, i bet most dont actually do this religiously though.

    with fancy computers and dbw i bet BMW could have a function that limits both throttle % and rev limit based on oil temp
     

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