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      10-17-2011, 09:17 AM   #7
Jon D
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Drives: 2022 840d
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Quote:
Originally Posted by xenon View Post
Surely can only be diesel in the oil?
Quite so; aforementioned theories from knowledgable forum members include HP fuel pump seals, injector over-fuelling or DPF regeneration issues; however, I can't see how unburnt DPF cycle fuel could find its way into the oil sump.
I hope to have an answer within the next few days...
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