Bardahl Manual Gearbox Additive SpecificationsBardahl Manual Gearbox Additive is a high quality product that extends the lifespan of the transmission. Packaged in a 150 ml tube it improves bearing lubrication reduces friction and wear and protects against corrosion. Suitable for all types of oil it lowers the operating temperature and facilitates gear shifting. Warning: this additive is not compatible with automatic gearboxes.How to use: After gearbox oil change add the contents of the complete tube to the gearbox oil sump to the level recommended by the manufacturer.