Every ball bearing only works as well as the oil with which it is maintained. With this sentence is actually said everything on the subject of ball bearing oil! A good ball bearing oil should always be in the toolbox, because the ball bearings need regular care and from time to time a fresh drop of oil. Usually 1-2 drops are already enough to give a freshly cleaned bearing the smooth running it needs. By regularly maintaining and checking the bearings in your RC car, you can always be sure to have an efficient and durable drivetrain on your side.