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You can read what you want there but I doubt you are looking at factual data. For me, I have been using it and testing it for over 10 years in two different highly modified turbocharged vehicles and the viscosity has always held up in comparison to other oils I have ran and tested. If there was shear, you would see that in the drop in viscosity. I'm not saying others suck, because I have ran Rotella T6, Castrol Edge 0W-40 and it tested fine as well. But the M1 has just done a bit better so I stick with it.
I mean go run the OEM oil for a couple of changes, get it tested, then go run Mobil1 0W-40 for a couple and then test and compare, you will see.
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2011 335i, FBO, N55+ Turbo, full E85, S55 intercooler, etc.
2015 X5 35i Xdrive
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