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Thread: Engine Oil Rise

  1. #1
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    Engine Oil Rise

    It has been currently a hot topic in Australia as we received a leaflet from Mazda ask us to monitor the engine oil level closely and regularly in Diesel Engine ( every 1000km or every month) Please read the following link

    http://www.derwan.com/download/MazdaDieselCare.jpg.


    Have you guys received anything like us here in Australia?

    I did little research on Google but not satisfied with what I found.

    I though I could seek some light here.

    Thanks
    Last edited by Tinymoon; 07-05-2012 at 04:17 AM. Reason: Mistypo

  2. #2
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    lol, I beat you by 3 minutes ... (see my thread)
    PS - you should mention the word DIESEL engine somewhere ... This is a DIESEL engine issue only

  3. #3
    Registered Member erhayes's Avatar

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    Appears that Mazda is concerned about fuel getting into the oil supply in a big way. Wonder what the cause could be. Ed

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    Anyone knows anything, please share

  5. #5
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    This issue is not just Mazda, but occurs with other diesels including those made by Volvo, VW/Audi, BMW and Ford to name a few.

    I am not very familar with modern diesels but it seems most today have particulate filters (DPF) to get the soot out.

    Experienced diesel owners, please update us.

  6. #6
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    Quote Originally Posted by CX-SV View Post
    This issue is not just Mazda, but occurs with other diesels including those made by Volvo, VW/Audi, BMW and Ford to name a few.

    I am not very familar with modern diesels but it seems most today have particulate filters (DPF) to get the soot out.

    Experienced diesel owners, please update us.
    Yeah, I googled around and found a lot topic talking about engine oil level in diesel engine (equipped with DPF) but keep a close check on oil level every month or 1000 km is just not right.

    I read BamW and other brand did a ECU upgrade to fix that.

    Any light?

  7. #7
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    Mazda CX-5 GT - Tech Pack: BMW E90 320D LCI : Mazda 3

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    Quote Originally Posted by Tinymoon View Post
    Yeah, I googled around and found a lot topic talking about engine oil level in diesel engine (equipped with DPF) but keep a close check on oil level every month or 1000 km is just not right.

    I read BamW and other brand did a ECU upgrade to fix that.

    Any light?
    Hi

    I've got a GT Diesel on order at the moment and this `rising oil issue` is causing me to re-consider my purchase. I have a 320d BMW and have never had this issue in 30,000km's.

    I'm also led to believe that the ECU needs to be reset after each oil change which the precludes you doing the oil change yourself - having to pay dealer inflated prices.
    I have read of one CX5 owner who has had to replaced oil every 4000km's

    I am goiing to speak with selling dealer Monday - and if I don't get a straight answer I will cancel order.

    Cheers...

  8. #8
    Registered Member erhayes's Avatar

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    Keep us informed please. Ed

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    Mazda 2002 BJ Astina 323 1.8 L

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    Quote Originally Posted by Tinymoon View Post
    Yeah, I googled around and found a lot topic talking about engine oil level in diesel engine (equipped with DPF) but keep a close check on oil level every month or 1000 km is just not right.

    I read BamW and other brand did a ECU upgrade to fix that.

    Any light?
    The only ways an engine would have a "rising oil-level" is if either coolant is getting into the sump in which case the oil would be coffee-milk coloured or more likely there is over-fueling going on with diesel-oil getting past the pistons into the sump. This is not exceptable [stating the obvious :-)] and Mazda needs to take immediate action.

    CA

  10. #10
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    This is what I found online:
    http://www.stocksy.co.uk/articles/Ca..._consequences/

    I wonder if they blend " fatty acid methyl ester (FAME), a biodiesel refined from vegetable oils" into US diesel, probably not.
    Last edited by ALafya; 07-29-2012 at 01:25 AM.

  11. #11
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    All is revealed,...thanx for that link,..I mean WTF are they thinking? Trying to get the most out of your engine is not being helped by these insane measures. Stick the particulate filter in a position where it can be manually cleaned [if need be]. That way everyone is happy,..and it gives the owner an extra way to kill half and hour every couple of weekends :-)

    JJ

  12. #12
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    Quote Originally Posted by Jasonjames View Post
    All is revealed,...thanx for that link,..I mean WTF are they thinking? Trying to get the most out of your engine is not being helped by these insane measures. Stick the particulate filter in a position where it can be manually cleaned [if need be]. That way everyone is happy,..and it gives the owner an extra way to kill half and hour every couple of weekends :-)

    JJ
    Particulates are pretty bad for people's health, so IMHO the requirement is reasonable to have a filter. However, perhaps should have phased-in bio fuel blend over longer period of time.

    However, it seems after more reading online (I don't own a diesel model; I am in the US), that down-under it's a pretty big deal, especially for Mazdas:
    http://forums.whirlpool.net.au/archive/1921061 (look for garax 's post from july 1st).

    It seems excessive amount of diesel gets into the oil. Theoretically, this engine will not be good for short trips only: need a good run to make sure the filter is cleaned and excess diesel burned / evaporates. However, some drivers with long daily commute reported rising oil level too. People are upset they need to do an oil change more often than their manual states, think it's a defect and don't like to check oil level every 1000 Km (~600 miles). Some people are concerned about having potentially diluted oil damage their engine.
    Seems however that Mazda might have fixed the issue in later model cars (but can't find proof, so maybe not). They definitely know, as they released the pamphlets. Some people report no oil level changes. A similar issue with Honda Diesel engine had a recall in the UK for reprogramming the ECU. Some people listen for regen cycle on their filter and make sure it runs to it's completion (not sure how).
    Last edited by ALafya; 07-29-2012 at 02:21 PM.

  13. #13
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    To summarize, there seems to be an issue for some drivers but not all.
    The issue is disconcerting and does not seem to effect other brands nearly as much, especially those with DPF filter in Australia.
    Viability of the vehicle is in question until Mazda actually addresses the issue publicly, perhaps by issuing a recall.

  14. #14
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    Quote Originally Posted by ALafya View Post
    To summarize, there seems to be an issue for some drivers but not all.
    The issue is disconcerting and does not seem to effect other brands nearly as much, especially those with DPF filter in Australia.
    Viability of the vehicle is in question until Mazda actually addresses the issue publicly, perhaps by issuing a recall.
    Hi,

    I had a converstaion with Mazda Australia...

    To surmize:

    Mazda Australia have seen a number of vehicles which have had this issue, but small in comparison to the number sold. The effected vehicles are then given an ECU reflash; with different regeneration parameters I assume and the problem presently has not reapperaed. Mazda also indicated the diesel vehicles are suitable for general / city driving and that interim oil changes less than the 10,000 / six month should not be required.

    If what I am being told is truithful from Mazda - I will continue with the purchase of the CX5 diesel.

    PS: I had spoken with 3 Mazda dealers re this problem; all dealers indicate no knowledge of the problem. They are either `liar liar pants on fire` or genuinely ignorant of the situation; Mazda Australia neither confirmed or denied whether dealers are aware...

    Cheers..

  15. #15
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    Thanks for the update.
    ECU reprogramming can resolve the issue for most people, I believe. This is the first I read of an official fix from Mazda. I don't think the numbers are that small, only that people did not drive enough miles and/or did not check their oil.
    Re: dealerships having no knowledge: they are most likely in the dark about this and as such, their opinion should not be considered.
    Could you share the Technical Bulletin number for this ECU fix?
    From experience (not with Mazda), dealerships will claim ignorance of a fix, unless you give it to them in printed form.
    Last edited by ALafya; 07-31-2012 at 02:31 PM.

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