http://www.valvoline.com/products/co...-oil/grease/64
enough in that can for about 1 billon tranny, doesnt take very much at all. which you only use it on the gears, be careful not to get any in the diff.
i only decided to try it since i had some from doing a bearing job on my full scale, seemed alot smoother and made less noise then any "shock oil, or diff oil", also motor temps went down 3-5 degrees, which isnt much, but better then the other way