The thicker the oil, the less your differential will "diffuse" in corners where the two tires rotate at different speeds. It contains friction-reducing additives to minimize viscosity changes. Data sheet.
Ultimate RC Silicone Oil 40,000 cps # 75ml
Ultimate RC silicone oil 60,000 cps # 75ml
Ultimate RC silicone oil 100,000 cps # 75ml
Core RC Silicone Oil 20000cSt 60ml for RC Car CR223
Ultimate RC silicone spray hose HI-RESISTANCE black 2.5x6mm 1 meter
Ultimate RC silicone spray hose transparent 2.5x6mm 25 meters
