RE: Grease For Rustler Differential
the best grease i have ever used is sil-glyde, light consistancy, doesn't degrade, lubricates well, doesn't absorb moisture, doesn't melt, run or freeze, high sheer pressure, has no effect on plastic, doesn't aerate as bad, almost no scent, non detergent, and the list goes on.
i fill the case 1/2 way.