To follow up on some of the discussions, is the conclusion that the BG is fine to run with a Wavetrac? Obviously they want 75W-90 and it's 75W-80, but has no LS additives and appears to be a suitable "factory fill" substitute which is what Wavetrac recommends if you're not using the Motul Gear 300. And no way am I sticking with the factory fluid, it's been... Fine, but not good.
I only ask because I foolishly got the BG without apparently checking the right thing, and while I have no issues buying new gear oil, if it's totally fine I'd prefer to just use what I've got. Street driven car with some track, but I go snowboard a lot in the winter so I'm not necessarily looking for a super thick fluid either