Thanks for your Patience and Time.
I dont make a "Strawmen", my Understanding is simply that (Example) 0w-40 / 10w-60 have a lot of VI Improvers, while (Example) 10W-30 or 0W-8 are VI Improver free.
That´s why i am aksing questions, to learn something, to gain knowledge, not to make a "strawmen"!