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Oil jet black after just 4K miles?
I own a 2017 M240i (6MT) and it has 8800 miles on it. It had an oil change at 2000 miles (by dealer), 4000 miles (by dealer) and at 8800 miles (DIY by me). At the last oil change, I noticed the oil was jet black. I can't imagine leaving it in for 10K miles. I wonder if the dealer didn't even change the oil at all. Has anyone else changed their own oil and noticed it as "jet black"??
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