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Castrol CLASSIC D140 •Monograde ‘straight’ low EP gear oil •For most types of gear including helical, spur, bevel, and worm •API GL-3 Classic D 140 is a high viscosity 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 D 140 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 high viscosity and type of additive system make it particularly suitable for use in older vehicles where some wear with age may have occured or 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
