Castrol ST90 Steering Box oil
Castrol ST90 is a monograde SAE90 gear oil formulated with high quality mineral oils. Castrol ST90 is fortified with anti-oxidant and anti-wear additives to ensure that the oil is able to withstand the oxidising conditions which will be present in the gearbox during service.

Castrol ST90 is suitable for the lubrication of most types of gear including helical, spur, bevel and worm but must not be used for hypoid gears which require extreme pressure lubricants.

Castrol ST90 is not suitable for applications where MIL-L-2105A/B/C are specified.

Please note: Metal oil cans may arrive dented, as long as they are not leaking this is viewed by Heritage Parts Centre as acceptable. If you would like the guarantee of an undented can, we advise you to collect in person