LSD problem

[Kas]

Since I start to drive my Hachi, I noticed one problem.
In left curve, I can drift as much as I want, it is not problem to start, jus a little to much pover, and both whells are spining, and car goes sideways.
BUT, in right curve, I do the same thing, but only right wheel spins, an left i standing. I try to drift at place, you know, front end is standing almost still, and rear is going around, and, when I try to the left, all is ok.
When I try to the right, sometimes I can, sometimes I can't do this.

I use Gulf LSD oil, same as Zax.

Is my LSD worn, or what?
Diff has, as I think about 280000 km.