RR363 PHC Brake Fluid


🇦🇺 We ship the RR363 Heavy Duty Brake Fluid anywhere in Australia!

In stock

Australian Authorised Supplier – Lawless Classic Oils

Never compromise quality. Our products are 100% Castrol Classic Authentic. Other sold brands are 100% genuine.

SKU: RR363 Category:


Fully compatible with Castrol RR363

A perfect Brake Fluid for all Rolls Royce pre-1980 (when mineral based LHM fluid was introduced)

The RR363 Heavy Duty Brake Fluid is a premium version of standard DOT3 synthetic brake fluid.

High lubricity to help reducing noise in the brake pumps and rear height control systems in the 1965-80 models.


This product is suitable for use in the hydraulic systems of Rolls-Royce & Bentley motor cars for which
such a synthetic product is specified.
The product shall fully meet the requirements of the latest issue of the US FMVSS 116 DOT 3, SAE J 1703 and ISO 4925
(Class 3) Specifications. The product shall also meet the following requirements:


PHC RR363 Selling Specifications

Product Name

Specification No:

Issue No:


Hydraulic System Fluid: RR 363 OSS 37 1 December 2018

PHC RR363 Test





Kinematic Viscosity at -40 °C ASTM D 445 cSt 1500 Max
Equilibrium Reflux Boiling Point FMVSS 116 °C. 230 Min
Colour Abs Spectrophotometric
(455nm / 1 cm cell)
0.380 Max


PHC RR363 Test



Typical Result


Dry Equilibrium Reflux Boiling Point  °C  °C 1500 Max
Wet Equilibrium Reflux Boiling Point  °C  °C 1500 Max
Viscosity, Kinematic -40C °C  °C cSt 1500 Max
Viscosity, Kinematic 100C °C  °C cSt 1500 Max
pH IP 160 g/ml 1.07
High Temperature Stability SAE J1703 °C 180 min
Chemical Stability FMVSS 116 °C 230 min
Evaporation Visual Clear & Bright, yellow liquid
Fluidity & Appearance @ -40 °C Pass, 6 seconds No freezing, Bubble time 10 sec. Max
Fluidity & Appearance @ -50 °C Pass, 16 seconds No freezing, Bubble time 35 sec. Max
Water Tolerance @ -40 °C Clear, 6 seconds 10 seconds Max
Water Tolerance @ +60 °C Clear, No sediment Sediment not to exceed 0.05% v/v
Compatibility @ -40 °C Clear, No stratification No stratification
Compatibility @ +60 °C Clear, No sediment Sediment not to exceed 0.05% v/v
Colour, visual SAE J1703 Pale Amber Water white to amber
Water Content, % SAE J1703 < 0.20 Not required
Density @ 20 °C, g/ml SAE J1703 1.041 Not required

PHC Brake Fluids also conform to many other international and manufacturers’ standards.
Details are available on request.



Additional information

Weight 1.2 kg
Dimensions 10 × 9 × 27 cm

1 Litre


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Lawless Classic Oils

ABN 40 667 871 730

Information and enquiries: call Michael 0417 929 966

Authentic Castrol Classic Products

Castrol Classic ranges have a partnership with Castrol that goes back over 30 years and we are proud to have been appointed Authorised Australian supplier for Castrol Classic lubricants

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