fuchs silkolene Semi Synthetic Ester Comp Formula Race Gear Oil SAE 80W-90 - 1L Comp Gear SEMI SYNTHETIC Race proven ester synthetic formulation gives smooth gear changes, positive clutch action and reduced wear especially where aluminium plates are used. SAE 80W-90. The Gear Oil That is being sold by Think Bike Gear is guaranteed to be unused and Brand New to the customer, if you have any queries or questions feel free to contact us and we can answer any question to the best of our ability.