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A lot of diesel in the oil

 
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blackblizzard
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Post17-06-2015, 9:40    Subject: A lot of diesel in the oil Quote

Hello,

letzten Herbst habe ich bei einem BMP (8V, 103kW) den DPF gewechselt (incl. Oil).

After 15,000 km, I changed the oil again because there were about 8.5 liters in the engine!

What could be the causes: tandem pump, PD seals?

Best regards,


Translated on 21-07-2026, 15:58.
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dieselschrauber
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Post17-06-2015, 12:29    Subject: Subject: A lot of diesel in the oil Quote

blackblizzard wrote:

...
What could be the causes: tandem pump, PD seals?
...

You already mentioned it...

See also:
/viewtopic.php?t=25805&highlight=diesel+in+motor%C3%B6l

Best regards, Rainer.


Translated on 21-07-2026, 15:59.
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blackblizzard
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Post12-07-2016, 18:29    Subject: A lot of diesel in the oil Quote

Okay, a late reply:

I have replaced the PD seals and the tandem pump because both were no longer working properly.

Now the oil level remains constant.


Here's what else I did:

With this high oil level, it's likely that some oil has been entering the exhaust system, which is putting a strain on the (relatively new) DPF. It was regenerating very frequently and could only reach approximately 25% regeneration.

Then I increased the ash content (which was in the single-digit percentage range) to 30% (which, in my opinion, makes sense if the DPF has been "contaminated" by the oil).

Now I've had some peace and quiet for a few thousand kilometers.

Best regards,


Translated on 21-07-2026, 16:01.
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Post12-07-2016, 21:48    Subject: A lot of diesel in the oil Quote

Thank you for the feedback! icon_smile.gif


Translated on 21-07-2026, 16:02.
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