Original Mugen Seiki silicone oil with a viscosity of 20000cps are used exclusively to adjust the locking effect in differential gears. Temperature-resistant silicone oil that retains its viscosity even with strong temperature fluctuations. The oil is also resistant to ageing, it retains its prescribed viscosity even after prolonged storage. Box contents include 1 silicone oil 20000 cps with 50 ml.