Genuine Mugen Seiki Silicone Oil with a viscosity of 80000CPS only available for setting the blocking effect in differential gearboxes. Temperature stable silicone oil which even with severe temperature fluctuations retains its viscosity. It also comes with this oil resistant to ageing, it keeps stored away, even after extensive time its the viscosity. Included in the box contents include 1 Silicone Oil 80000CPS with 50 ml.