Okay, here we go...
Dealer fill in this 2018 Lexus GS350, I assume to be 0W20 TGMO, in a typically very reliable 3.5L V6 that's been around a long time. 9,574 miles on the oil, but it was in there for 19 months... never left oil in use for such a long period before. As Blackstone states, Iron...