Originally Posted by cranky
.. how about the grease for gear diff. is it any oil can do?
Cranky, I assume you have gear diffs. The choice of grease will affect the stiffness of the diff. For example Tamiya ceramic grease will produce a free spinning diff, whereas the Tamiya anti-wear grease will produce a much stiffer result.
The more anti-wear grease you use, the stiffer it gets.
The HPI heavy duty grease produces a result somewhere between the ceramic grease and a light smear of anti-wear.