Yokomo YOKCSDOT7 - Super Flex Gear Differential Oil Dot 7 (Silicone Differential Oil)  [YOKCSDOT7]

Silicone diff oil for gear differentials

This product is an RC-scale silicone oil formulated for gear-type differentials in radio-controlled cars. It serves as a tuning fluid that changes internal damping and torque transfer characteristics inside gear diffs, allowing finer control over handling balance without modifying mechanical parts.

Application is straightforward: add or replace oil inside the gear differential housing to adjust center, front or rear differential behavior depending on your chassis setup. Because this is a fluid tuning component, small viscosity changes can noticeably affect traction roll and rotation behavior; treat adjustments incrementally and keep records of volumes used.

Installation notes: clean the differential internals and bearings before introducing fresh oil to avoid contamination, work on a clean surface, and cycle the diff after filling to let the fluid settle into gears and cross pins. Use appropriate seals and gaskets to prevent leaks and inspect for foam or entrained air after filling.

Handling and storage: store the bottle upright in a cool, dry place, keep caps tightened, and avoid contact with painted surfaces as silicone oils can interfere with certain paints and plastics. Dispose of excess fluid according to local regulations for chemical waste.