Which oil for my diffs?

[marc993turbo]

Hi !

I´m building new diffs for my maxx right now and i don´t know which oil i should use if i want to get a good "locking"-effect. (don´t know how the right term is)

Let me say, i don´t want a kind of spool but i want something i have in my real car, let´s say 40%pull/60%push locking...

which weight would be a good choice?

10000, 30000, 50000?

Never used such oil...

And one more question - the ue servosaver is out of stock in every shop i know.

Does somebody sell a saver? Or can somebody help me out get one?

Thanks.

Marc.