[G80indy]

As BMW specifies 10w60, how is that a knee jerk reaction? LOL.
M1 0w40 loses it's HTHS and it runs like water at temp anyway, so no thanks in my S65.
Read up/ do a search! Tons of forums for other car makes discuss it ad nauseum.
TWS shears too but I never run it long enough for that to matter.
If I ever, EVER consider a lighter grade other than TWS it will be with a shear stable ester base oil = Redline oil.
I will listen to the wisdom of my CCA tech advisor and BMW platinum level mechanic way before I acknowledge web forum consensus.
Sorry to dissent. I am grateful for insight through forum users' experience in general...
Except on oil topics.
No one here has a smidgen of oil/ lubricant /engine metallurgy expertise here to flat out recommend going against factory specs.
You do have every right to gamble with your own investment however. And I do enjoy reading the results.
Cheers