How long will it take the oil to trun black after it is changed? I had my oil changed yesterday and drove it home and parked it. It was a 9 mile trip. I went and checked it today to see what the level was so that I could see how much it would increase before the next change. the oil looked as black as it did when I took it to have it changed. It had 7,000 miles on it since last oil change.
Sam
Sam