Castrol B373 is a mineral-based extreme-pressure gear oil which combines limited slip performance with excellent load-carrying ability.

Castrol B373 is a mineral based racing gear oil particularly suitable for use in limited slip final drives fitted to competition vehicles.

API Service Level GL6+

Health, safety and environmental information is provided for this product in the Materials Safety Data Sheet. This gives details of potential hazards, precautions and First Aid measures, together with environmental effects and disposal of used products. Castrol (UK) Ltd. or its subsidiaries will not accept liability if the product is used other than in the manner or with the precautions or for the purpose/s specified. Before the product is used other than as directed, advice should be obtained from the local Castrol office.

All packages should be stored under cover. Where outside storage is unavoidable drums should be laid horizontally to avoid the possible ingress of water and the obliteration of drum markings. Products should not be stored above 60°C, or exposed to hot sun or freezing conditions.

Download Technical Data Sheet

Download Safety Data Sheet

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