Castrol Classic ST90

This gear oil is formulated with high-quality mineral oils, containing anti-oxidation and anti-wear additives to ensure gear teeth are protected against wear in gearboxes and axles. Suitable for most types of gears including helical, spur, bevel and worm, but not to be used with hypoid gears. The additive system is suitable for sensitive (yellow) metals, such as brass and bronze.