That's the big question with this fluid... is there anything special to this "secret sauce" to have decent long term wear characteristics? I don't know, but since this is advertised by BMW as being a lifetime fill, hopefully (for the vehicle owner's) there is something to it. I suspect there's something, but can't tell what or how much and haven't found any MSDS's etc for this fluid.
I have noticed a few interesting traits in a small "on the road" vehicle test I'm conducting with this & other fluids. This stuff doesn't have the typical shift character of a thin ATF. Most thin ATF's shift better when cold to warm and get notchy as temps increase & they thin down (i.e. on a racetrack when they get HOT). This stuff shifts decent when cold, but gets better as temps increase & shifts great hot. Even Redline D4 got notchy as track temps increased. Also, when filling the trans using my typical manual fluid transfer pump (where viscosity usually equates nicely with pumping force & time), this stuff was harder to pump & took longer to fill than some typical Dex3 ATF's.
I guess a UOA will tell if it'll wear out MT's.