Bob, that is the gear oil that IM uses as their stock oil.
I know there are at least two viscosity of Swepco 201 oil that P guys use 75-90 I think and there is also an 80-160 which I do not know if I would use but my local supplier says he has P guys using it. Maybe someone else can comment on this on P trannies.
BTW Michael is right, the shifts are much much better and when the tranny is cold you can shift without chatter but with the Total I had to wait till the engine was at full operating temp for smooth shifting.
In my subie tranny I have the 202 full synthetic 75-90.