Traxxas 5039 Oil, differential (500K wt) (0.7 oz (20cc))

This is a bottle of Traxxas Differential Oil. This differential oil can be used for a variety of vehicle types. The thicker the oil, the less your differential will "diff out" in the corners, where the two tires will turn at different speeds. Changing the oil in your differentials is one of the most important tuning options for off-road buggies.