Castrol Racing B373 SAE90 – Limited Slip Differential Oils


🇦🇺 We ship the Castrol B373 SAE90 Limited Slip Differential Oils anywhere in Australia!

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Australian Authorised Supplier – Lawless Classic Oils

Never compromise quality. Our products are 100% Castrol Classic Authentic.

SKU: 154F3B Category: Tag:


Castrol B 373 is a mineral based racing gear oil, particularly suitable for use in limited slip final drives in competition vehicles.

  • Limited Slip Differential (LSD) oil

  • Extreme Pressure oil (EP), for competition use

  • Mineral based SAE90

  • Without noise suppressant

  • API GL-6+

Features / Benefits

Castrol Product B373 is a mineral based extreme pressure (EP) gear oil which combines limited slip performance with excellent load carrying

Product Performance Claims

API Service Level GL6+

Castrol B373 Product Identifier

Product Name

Product Code

SDS no.

Product Type

Castrol B373 452522-IT01 452522 Liquid

Castrol B373 Typical Characteristics




Castrol B373

Density @ 15C, Relative IP 160 0.910
Appearance BAM 300 clear dark liquid
Viscosity, Kinematic 100C IP 71 mm²/s 18
Viscosity Index IP 226 None 95 min
Phosphorus, % wt ICP % wt -6

Additional information

Weight 1.2 kg
Dimensions 10 × 9 × 27 cm

1 Litre


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Information and enquiries: call Michael 0417 929 966

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