RE: How much diff oil should be put in diff cup?
I never said seniority makes me correct, leave the unnecessary patronising out of your posts please. That may be true for one car, which is known for doing things differently to others. It's not the general rule. That is mighty strange telling people to fill it to the planetary, does the losi have smaller than average diffs? That could be one explanation, just guessing though, and that would definitely mean that the blocking effect is greater from the same number oil as another different car with the diff filled 55%.
In any case, I stand corrected and offer my apologies. If you have a losi, fill the diff, if you have any other car, fill it 55-60% as usual.