Motor oil BLACK at @ 50% life

bcrichster

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Very insightful comment! Thanks for lending your advanced automotive engineering expertise!

"Just because it's new doesn't mean it's good." -Every mechanic worth his weight in salt
? .. I can't begin to relate how many new parts I've bought that were already bad or didn't last 1/10 worth a shizz..
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TheCanadian

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Motor oil turns black quickly due to byproducts off combustion. I wouldn’t worry
 

Design

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I agree with most that it appears the oil is doing its job. And as mentioned earlier, consider a UOA at the next interval to see what your deposits/dilution look like. I think most of us know this but don't see it discussed often.... running too rich too long can carbonize the cylinders/OCRs over time. Especially without a proper tune.

Once the OCRs carbonize, you're done. Happened on my MS3 from a combo of extended OCIs and a rich(er) tune. Worth the $35 UOA to rule out.
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