So I had a scheduled visit to my dealer today to get my rear hatch lift-springs replaced. While I was there I brought up my situation about the oil. They said that from what I described, they've never seen or heard such a thing. They asked if I had an oil sample (like many of you had asked). I said no because I did two oil changes on the same day...mine and my wife's. And mine was last. So the oil that I have in the pan is mixed. Then they asked if I used Nissan's oil, because it contains the ester additive. I said "no, but I used Red Line, which also contains ester." Then they said, "well, we can't really do anything for you at the moment. Next time you do the change, if you see the same thing, bring in a sample...OR...have us do the next change so we can see it first hand." So, I was like "ok."
Oh but when I was describing the oil, they said that copper/brass fragments could be from some bearings. But again, to determine that, they'd need a sample.
So I think I'll do my next change in three months instead of five or six, and see how it looks then.
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