Arrowmax am-210025 20,000cst Silicone Differential Oil 59ml  [am-210025]

Differential silicone oil for model cars

This Arrowmax am-210025 RC-scale product is supplied as a 59ml bottle of silicone diff fluid with a viscosity of 20,000cst. It is used to influence the damping inside scale model differentials and thereby alter traction transfer and transient handling characteristics on varied surfaces.

The fluid is sold for direct filling of open diffs and rebuildable sealed units in hobby RC cars and trucks. As a dense silicone oil it increases damping and promotes greater locking effect than lower-viscosity fluids, which can result in steadier corner exit and reduced inside-wheel spin where grip is limited.

For servicing, drain the existing oil and refill to the manufacturer recommended level for the differential type in question. Compatibility is governed by diff internals rather than the chassis brand, so verify the diff construction before choosing a viscosity. Store the bottle upright and ensure the cap is sealed to avoid contamination.