I was in the dark and now have seem the light..
My whole life I have being using "Shell" for all bimmer 745/750- Cl55/E350 and so on. My First time Today using "Chevron with Techron" in my 750 bimmer and MAN i tell you my friend.
The car for some reason feel light its just a boost of power. I will only fill up with "Chevron with Techron" from now on.
In my Mercedes I have always and forever use Shell and it work great. Since now I have all bimmer a needs of upgrade.