Dude, not trying to convince anyone of anything. I present the facts, if somone wants to learn something new or not, it‘s up to them. I wasn’t even sure it was new info..
Dude, I've seen all of that, no need to repeat it again and again.
This product obviously is still marketed primarily as a 'GL-5 LSD
gear oil intended for rear differentials'.
If you made your choice before asking here just use it. However
you won't convince me it's a wise choice for longitudinal manual
transmission applications like yours.
If Eneos says compatible for synchromesh, it is compatible. If they say proprietary tech that enables easy and smooth shifting at low temps, they have tested that. They explain more somewhere, base oil needs less additive. Not that interested in the whys to spend time on it. Only need to see a highly regarded company says in writing compatible. Then it’s done.