R/C Differential Silicone Oil 100.000cst 59ml - Arrowmax am-210031  [am-210031]

Fine-tune differential behavior with silicone oil

This Arrowmax am-210031 product comes in a 59ml bottle at 100.000cst and is formulated for use in R/C scale differentials. It serves as a tuning medium to change how torque is transferred between driven wheels, helping refine corner entry, mid-corner balance and traction transitions in model cars.

The fluid acts as a viscous coupling inside sealed or rebuildable diffs; higher viscosity raises slip resistance and produces a firmer, more locked response, while lower viscosity permits freer differential action. Apply this fluid only in R/C differentials and associated small-scale drivetrains.

Installation notes: follow your chassis procedure to drain or disassemble the diff, replace the existing fluid with the Arrowmax oil, and reassemble using the recommended bleed and fill method to avoid trapped air. Work on a clean surface, wear gloves, and remove excess fluid from gears and seals during reassembly.

Tuning role: treat diff oil as one variable alongside tyres, suspension and gear ratios. Make small incremental changes, test on the same surface to compare results, and keep a log of viscosities and observed effects to dial in handling.