The new YoYoFactory Performance Oils are the result of long-time testing by the folks at YYF.
The Long Spin Performance Oil is a low-viscosity (thin) oil intended for unresponsive play. Used regularly, Long Spin Oil can increase bearing life and help provide the best possible performance from the bearing.
The Loop Performance Oil is a high-viscosity (thick) lubricant that is designed to make yo-yos more responsive. This oil is for anyone who wants their yo-yo to play tug responsive or wants to make looping yo-yos perform the best.
Remember: In general, a little oil goes a long way, so apply sparingly for best results!