fiso64

Newbie here. I just opened the differentials of my Kyosho DBX VE 2.0, and there was no oil, just grease. There is also no mention of filling the diffs with oil in the maintenance manual, only applying grease. However, everybody seems to be saying that you fill them with oil. As I'm not planning to race, is it ok if I just apply some heavy duty grease to the differentials, rather than fill it with oil? The diffs have o rings and do seem to be sealed.