Setup help: 2WD Gear Diffs

[Origineelreclamebord]

Hi everyone,

I've just modified my TRF201 to fit a gear diff (from a Kyosho Ultima SC). It has 3000wt oil in there currently, but never having driven a gear diff, I don't know what oil would be a good thickness to start with for a 2WD buggy - and as it's not a common mod, I can't find TRF201 setups that can tell me anything about it.

I drive on clay and sometimes also on astroturf. I'd like to try it on both surfaces, but the first test (in two weeks) will be on astroturf.

So my question is... What oil do you use in your gear diff, or what would you recommend starting with?