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About Castrol Syntrax

Taking care of a huge range of transmissions, differentials, transaxles and gearboxes, the Castrol Syntrax range brings premium fully synthetic technology to a huge range of vehicles and applications to ensure the very best performance. Whether you're running a limited slip differential, looking for the best protection for your heavy duty equipment, truck or bus, or looking for an outstanding universal option for your vehicle's manual transmission, Castrol's Syntrax range is about as wide and diverse as they come.

No matter what the Syntrax product or the application, a few things are assured when it comes to investing in a bottle of Castrol Syntrax. Fully synthetic performance for the finest lubrication and protection, the best and smoothest performance from your transmission and differential, and the most stable operation at both high and low temperatures. Every Castrol Syntrax transmission fluid and gear oil meets a huge range of OE performance requirements, meaning that you're getting oil that will meet or exceed the standards required by your vehicle's manufacturer.