Castrol Classic EP 90
Castrol Classic EP 90 is a mineral oil based gear oil containing anti-oxidant, anti-wear and extreme pressure additives to protect against problems due to oil oxidation, gear wear and corrosion.
Castrol Classic EP 90 is recommended for the lubrication of conventional spiral bevel final drives and mild hypoid axles where API GL-4 oils are recommended. It may also be used to lubricate spur and helical gears and for other applications where the manufacturer specifies the use of an oil meeting API GL-4. It should not be used in high off-set hypoid axles where API GL-5 oils are typically recommended or in axles with limited slip differentials.
Castrol Classic EP 90 meets the following specifications and approvals: API GL-4; Castrol Classic EP 90.


