ST90 - Castrol CLASSIC ST90 - 1 Litre

Castrol CLASSIC ST90

•Monograde SAE90 gear oil

•For gearboxes and differentials where a non low EP gear oil specified

•For straight cut gears

•API GL-3 Classic ST 90 is a gear oil formulated with high quality mineral oils. It is fortified with an anti-oxidation and anti-wear additive to ensure that the oil is able to withstand the oxidising conditions which are present in gearboxes/axles during service and to ensure that the gear teeth are protected against wear.

Application - Classic ST 90 is suitable for the lubrication of most types of gears including helical, spur, bevel and worm; but must not be used for hypoid gears where API GL-4 or GL-5 oils are recommended. The type of additive system used makes it particularly suitable for use in older vehicles where the lubricated application may contain sensitive metal (yellow) components (eg. brass/bronze). If you are unsure as to which oil type you require please visit Castrol Classic Oil Finder


Lubrication Explained and Early Castrol Applications