I bow down here to the powers at be for forgiveness. I was way over due for an oil change (about 1200 well since street wars(really bad race than don't do my oil)). I finally did it today and it was black as coal and I was about 3/4 of a quart short. Please forgive me for my trespass I leave my soul at your mercy.
Aaaaa! 1200 ain't a carnal sin, but don't let it happen again! LOL!!! Why I run synthetic. I know it doesn't really protect any better. But I love letting the oil monitor do it'* job. And at 9-10k miles between oil changes (what the monitor tells me is ok), I have never seen black. Really never more than a dark brown I can still see through. And I treat my engine like an unwanted red headed step-child.