Came off of a 2016-ish Infiniti QX60 with the 3.5 liter engine, 105,000 or so miles. Vehicle backstory was that it had been dragged out of a snowbank and had been sitting; We did some brake work, and had to replace a rear lower control arm that whomever did the pulling turned into an S, as well as repair the frame where they almost dragged the inner alignment cam bolt out of it. Anyway, we checked it out and the oil change sticker claimed it had been 20K miles since the last change. While the oil was nasty, there was also visible layers of slimy sludge inside the oil cap; sludge and filter condition both support it really having gone that far, and almost certainly more than once. We performed a BG Dynamic service to clean the trash out of the engine as best we could, and finally turned the maintenance reminder in the dash back on so it's hopefully annoying enough they get the oil changed next time it's due. As for the filter, I would guess by visual clues it was built by Champ, but honestly have no idea what brand it is. It's obviously got multiple holes in it, and the drainback valve was as hard as a rock and broke when I tried to bend it and see if it had any flexibility left. A Napa Gold filter and Thrive (bulk oil supplied by US Lubricants) 0w20 went back on and in. Amazingly the engine is quiet and ran well, we'll see if it ends up burning oil down the road.