Arrowmax am-210015 Silicone Diff Fluid 59ml 1.000cSt for RC differential tuning  [am-210015]

Silicone diff fluid for RC differentials

This Arrowmax am-210015 silicone diff fluid is formulated as a low-viscosity option for RC-scale differential assemblies, supplied in a 59ml bottle and specified at 1.000cSt. It is intended for hobby-grade radio control models and described here only as an accessory for model diff tuning.

Use role — The fluid controls how the differential transfers torque under load, influencing turn-in, mid-corner behavior, and traction transition. At 1.000cSt this oil offers minimal internal damping so it is suited to setups where you want the diff to remain relatively free while still providing consistent lubrication for gears and bearings inside the diff housing.

Compatibility and fit — The fluid is suitable for standard RC differential housings that accept silicone oils, including sealed and open-type diffs commonly found in 1/10 and similar scale models. Always confirm compatibility with your diff's sealing and materials before use to avoid swelling or seal degradation from mismatched fluids.

Application tips — Apply sparingly: a few drops per diff gear pocket are typical when testing a lower-viscosity setting. After filling, cycle the drivetrain slowly to allow the fluid to distribute and purge trapped air, then recheck handling on low-speed runs before full-power testing. Use clean syringes or precision applicators to control volume and avoid contamination from other oils or debris.

Tuning guidance — Expect quicker transient responses and easier steering at low speeds compared with higher-viscosity diff oils. Combine with chassis setup changes such as shock damping and anti-roll adjustments to balance the effect; changes to diff oil weight can be subtle and should be validated incrementally.