Was excited to see this one. Changed my oil/pulled sample after a 2-day track weekend that included about 2.5 hours off track time at VIR in VA. I also had a long ~1K mi road trip for a car rally on this oil and that included some flogging as well. I saw no oil consumption worth mentioning. Lots of triple digit speeds. Cool ambients so oil temps (when I looked) were around 230 deg F. I added a can of MoS2 with the Molygen for the hell of it. Good to see the Fe drop back to single digit values this change...I think the increase from the new turbo is finally "washed out" at this point. The comments about Pb are likely spot-on, I ran some fuel from the track (100 octane) during the event. Beyond the large % drop when I used M1 0W40, this is the highest drop I've seen and is likely fuel-related would be my take. Looks similar to the UOAs I saw last year for the same event (48/52K mi data) and same oil.
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