Yoyo Factory Long Spin Oil
If you are serious about yoyoing and are enjoying it for a long time, you will feel the difference after using oil lubrication. It's just better with oil. Long Spin oil is intended for non-responsive yo-yos. It increases the spin time of the yoyo and also its lifespan. At the same time, it improves its quiet operation.
If your bearing starts making strange noises, it needs to be lubricated. For ideal condition, the bearing must be removed and cleaned with technical gasoline (kerosene or lighter gasoline). Then add 1-2 drops of oil to the bearing. After assembly, start yoyoing for a while to allow the oil to settle. After the oil settles, it will go like new.
The bottle should be shaken before use.