[Sammus]

yeah 30k at least, maybe like 100k or higher even. I think team assoc. even make a 300k diff oil - probably a little extreme for a racer, but still viable in an MT.. The thing is with an electric motor you have peak torque at 0rpm, so when you're on and off the throttle it is much easier to unload the diff than with a nitro motor, that simply doesnt have the balls in that lower rpm range. Be weary that with heavier diff fluid, even though the diff can still unload, itll be a bit harder to, and will make it much easier to flip the truck if you're a bit too keen with the throttle :p