Yes.
Surprise, Ravenol has Confessed that they run of tungsten in Production and used other Friction Modfifiers instead for a short time.
In their racing oil wich they advertise heavily as "With tungsten"
Posting. Nr. 84 here in this thread:
Hier die Analyse von meinem S4 mit dem RUP. Viel Langstrecke (2 Wochen Urlaub 3000km) und dann auch ein paar längere Fahrten. Jetzt die letzten Monate auch öfter mal eine Kurzstrecke. Denke mal mit etwas ausdampfen vorher, wäre der Kraftstoffgehalt…
oil-club.de
Posting Nr. 84 Translated:
"Hello everyone, the employee responsible is unfortunately still on sick leave (I really wish him a speedy recovery), but I was finally able to clarify the situation today: A few days in May 2022, due to supply difficulties, production actually had to resort to additional organic friction modifiers (OFMs - Organic Friction Modifiers) (such as N-tallow-alkyltrimethylenedi) instead of tungsten. The OFMs are more expensive than metal-containing friction modifiers (such as tungsten, molybdenum and sometimes boron), but are very important and effective. This means that this bottling was in no way inferior in terms of friction properties, but was even higher quality and more expensive to produce. It concerns the following bottling at RUP: Bottling date: 05/30/2022 Batch number: W22007131 By the way, the third part of the video from full load deals exactly with the topic of friction modifier additives from minute 6:45. And at minute 7:45 the Alex also talks about the organic FMs. Here is the (very informative) video again: Video: Part 3/5 Motor Oil Additives So in the end it all looks more harmless than I thought. The unfortunate circumstance was that my contact person on the subject had been on sick leave for a long time. And they didn't want to disrupt the lines of communication"
Most members of the forum where not amused about this, thread was locked. You could translate the whole thread with Google translator and read the whole story.