Car does not start and black oil after 500km oil change!?

What could this indicate when the car cranks over but won't start, and the dipstick has black oil even though it was changed very recently?

Thanks

Reply to
JD
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Reply to
Mike Behnke

I doubt they have much to do with each other. If the oil gets black quickly, it could be due to overly rich fuel or a worn-out engine letting blowby into the oil, but it could just mean that the new oil is cleaning out some deposits that were in there previously.

Reply to
Robert Hancock

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