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BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

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  #1  
Old 02-15-2013, 10:41 AM
SennaVProst SennaVProst is offline
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10W-60 to 5W-30?

I'm in the process of getting my oil analysis done and noticed something very peculiar on my past two oil changes. The first oil change done in Jan 2012, 10W-60 oil was put in. The second oil change I received last month, same dealership, Jan 2013, 5W-30 oil was put in.

I called the dealership and they are investigating currently. Anyone else heard of this? Anything I should be concerned about?
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  #2  
Old 02-15-2013, 11:57 AM
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BB_cuda BB_cuda is offline
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I wonder how your DPF liked having 10W-60 for 11,600 miles? You should get them to agree (in writing) that if you have DPF issues after warranty's end, they fix it free. The LL04 oil designation is for low ash related to minimizing amount of stuff going into the DPF. Not trying to scare you, it may be fine but that is what I would ask for.
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Old 02-15-2013, 12:49 PM
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AFAIK, there is not a 10W-60 oil that meets LL04. I agree with 'cuda, at the minimum, the dealer should state their mistake in writing. I would not be happy to have run a non LL04 oil for so many miles because the dealer made a mistake.
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Old 02-15-2013, 01:24 PM
BMWTurboDzl BMWTurboDzl is offline
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OMG! 10w-60....this must be a joke. April 1 isn't for a few weeks..

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Old 02-15-2013, 02:27 PM
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Not good. Ask them for free Platinum extended warranty
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  #6  
Old 02-15-2013, 02:31 PM
SennaVProst SennaVProst is offline
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Blackstone Labs actually has a sample of the oil that was taken out, so hopefully they will verify whether it's just a clerical mistake (as told by the dealer a short time ago) or if it was 10W-60 for sure.
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Old 02-16-2013, 05:55 AM
GreekboyD GreekboyD is offline
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So many clueless technicians out there when it comes to these diesels. I'm not surprised at all.
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Old 02-16-2013, 07:25 AM
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My oil change says 5W30.

If the 10W60 is not LL-04 it will most likely have higher ash content, which translates to slightly more wear and tear plus more particulates into the DPF.

Not to mention it would not provide the same level of lower viscosity at colder starting temps and will be thicker at higher operating temps.

Would you notice anything? Hard to say. I would definitely register a formal complaint just in case you find something unusual at a later date that may be attributable to the improper oil.

I would expect the lab analysis would be able to identify the differences between a 5W30 and 10W60.
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  #9  
Old 02-16-2013, 10:07 AM
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Quote:
Originally Posted by SennaVProst View Post
Blackstone Labs actually has a sample of the oil that was taken out, so hopefully they will verify whether it's just a clerical mistake (as told by the dealer a short time ago) or if it was 10W-60 for sure.
If it's confirmed to be 10W-60, I think it would be wise to be all over the dealer. Look at it this way: if the roles were reversed, and BMW could pin improper maintenance on you as a means to avoid paying for some sort of claim, is there any doubt about what they would do? The OEM's will use any excuse to slam the customer in this sort of situation, so I think you should plan to be aggressive if the tests prove that the wrong oil was used.
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Old 02-22-2013, 02:15 PM
BMWTurboDzl BMWTurboDzl is offline
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Any updates?

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  #11  
Old 02-22-2013, 08:39 PM
d geek d geek is offline
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I agree with 62Lincoln- you need to be all over them for an extended warranty on the emissions system. Non-diesel rated oil in a diesel for a year means that the soot in the oil could not be suspended properly. This means accelerated wear on bearing surfaces. The oil analysis should be able to determine if the wrong oil was in fact used since the viscosity of the two is going to be way different. I'd just approach it just as it is documented and demand an extended warranty.
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  #12  
Old 02-23-2013, 06:15 AM
SennaVProst SennaVProst is offline
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I received the results yesterday, see below.

Good news is that it looks like it was indeed 5W-30, but the high iron is leading me to think I should be changing the oil more often.
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  #13  
Old 02-23-2013, 07:13 AM
BMWTurboDzl BMWTurboDzl is offline
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Looks fine IMO. BITOG has a great sticky on what constitutes as a lot of wear.

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  #14  
Old 02-23-2013, 08:02 AM
KeithS KeithS is offline
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For an 11K mile run, those numbers do not look bad at all. I believe the special issues for Diesel is fuel contamination (which looks amazingly low), and soot particulates (insoluables?).

Considering that the full oil change interval is in the order of 13K-14K miles, that's just beyond my comfort zone. I will do what I have with all my BMWs, perform oil changes at half the full mileage intervals. To me it's cheap insurance. We have 2 other BMWs in the family, each with about 150K miles. Not only do they never need oil between changes (uses maybe 1/4 of a quart), whenever the valve covers are pulled, it's sparkling clean.

When the free maintenance is over I may just go to a 10K oil change interval. That's about my comfort limit.
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