Arrowmax am-210023 10,000cst Silicone Diff Fluid 59ml  [am-210023]

Silicone diff oil for tuning balance

The Arrowmax am-210023 silicone diff fluid is supplied in a 59ml container and is specified at 10,000cst for application inside model differential housings to influence traction bias and overall chassis balance while keeping existing hardware intact.

Compatibility covers standard hobby differentials designed to use silicone oil as the damping medium. The fluid acts as a tuning parameter: heavier oils increase internal resistance and reduce differential action, while lighter oils permit freer wheel speed differences.

Refill is a common maintenance operation on most hobby diffs. Follow your chassis service instructions: remove the diff from the gearbox, open the case, drain the old oil, add the correct amount to the gears and spider assembly, reassemble, and confirm smooth rotation. Work cleanly to avoid introducing contaminants.

Tuning guidance: choose the 10,000cst grade when aiming for a firmer drive feel without swapping internals. Note that diff oil selection affects understeer/oversteer balance and will interact with tyre compound, suspension settings, and gear ratios; make controlled changes and evaluate on your usual surface.