Product Overview
Millers Universal Brake Fluid DOT 4 – High Performance Brake & Clutch Fluid
Millers Universal Brake Fluid DOT 4 is a high boiling point hydraulic brake and clutch fluid formulated for vehicles requiring a compatible non-mineral DOT 4 fluid. Available in 500ml and 1 litre bottles, it is suitable for a wide range of passenger cars and light commercial vehicles, subject to the vehicle manufacturer’s specification.
Whether you are completing routine brake maintenance, replacing old brake fluid or servicing a compatible hydraulic clutch system, Millers DOT 4 Brake Fluid offers reliable performance supported by recognised industry standards.
Why Choose Millers Universal DOT 4 Brake Fluid?
- High dry boiling point: At least 260°C to help withstand elevated braking temperatures.
- Wet boiling point: At least 165°C, supporting performance as the fluid is exposed to moisture over time.
- Moisture-related protection: Formulated to improve resistance to vapour lock.
- Recognised specifications: Meets FMVSS 116 DOT 4 and DOT 3, SAE J1704 and J1703, and ISO 4925 Classes 4 and 3.
- Versatile use: Suitable for compatible hydraulic brake and clutch systems.
- Convenient bottle sizes: Choose 500ml or 1L to suit your servicing requirements.
High Boiling Point DOT 4 Brake Fluid Explained
Brake fluid transfers hydraulic pressure between the brake pedal and braking components. During repeated braking, temperatures can increase significantly. If brake fluid boils, vapour can form inside the hydraulic system, contributing to a soft or spongy pedal and reduced braking performance.
Millers Universal Brake Fluid DOT 4 has a minimum dry boiling point of 260°C and minimum wet boiling point of 165°C. These figures exceed the basic DOT 4 boiling-point requirements, making the fluid a suitable option for compatible road vehicles. It is not a substitute for choosing a specialist racing fluid where one is required.
Want to understand the difference between standard and racing fluids? Read our DOT 4 vs DOT 5.1 vs Racing Brake Fluid UK guide for practical advice on boiling points, replacement intervals and track-day requirements.
Applications and Compatibility
Millers Universal DOT 4 Brake Fluid is intended for passenger cars, vans and other vehicles with hydraulic braking or clutch systems that specify a compatible non-mineral fluid. It can be used for servicing systems requiring standard DOT 4, provided any additional vehicle-specific fluid requirements are satisfied.
Millers states compatibility with conventional DOT 3, DOT 4 and DOT 5.1 brake fluids. However, always follow the vehicle handbook and relevant fluid specifications. Never mix with silicone DOT 5 or use in mineral-oil hydraulic systems.
500ml or 1 Litre – Which Should You Choose?
The 500ml bottle (MLRS-5391KF) is a convenient option for smaller service requirements where the specified fluid quantity is suitable. The 1 litre bottle (MLRS-5391JE) provides more fluid for larger servicing requirements or full brake fluid replacement, subject to the vehicle’s system capacity.
Always check the quantity needed for your vehicle and avoid storing partially used brake fluid for extended periods, as moisture exposure may affect performance.
Buy Millers DOT 4 Brake Fluid from Performance Car Parts UK
At Performance Car Parts UK, we stock performance car parts and essential maintenance products for UK drivers. Pair your brake fluid service with an inspection of your brake pads, discs and hydraulic lines to help maintain a dependable braking system.
For the manufacturer’s technical information, see the official Millers Universal Brake Fluid DOT 4 product page or download the Millers DOT 4 technical data sheet.
Select your preferred bottle size and order Millers Universal Brake Fluid DOT 4 today.
Important: Brake systems are safety-critical. Follow the manufacturer’s fluid specification and bleeding procedure. If unsure, consult a qualified technician.
