Dr T,
I don't know the answer to your question; however, I will say this, I expect a bottle that says "European Car Formula" and "Mobil 1 is factory fill in all Porsche and Mercedes-AMG vehicles, and 0W-40 is their viscosity of choice" to be molecule for molecule identical to what I buy wherever it ends up being blended and packaged (the implcations don't you know). (Don't take me too literally because I understand that these OEMS ar probably the first to get the chemistry mods when they are fielded.)