TRW PFB420DRAE DOT 4 Brake Fluid – Premium Braking Performance

Purpose and Specifications

TRW PFB420DRAE is a premium DOT 4 brake fluid engineered to keep your braking system safe and responsive in all driving conditions. This 20-litre canister contains advanced lubricants, stabilisers, anti-oxidants and corrosion inhibitors that protect your brake components from wear and maintain consistent performance.

Key Performance Features:

• Dry Boiling Point: 260°C – Resists vapour lock and brake fade even under extreme braking stress, such as mountain driving or towing
• Low-Temperature Performance – Maintains proper viscosity in cold weather, ensuring quick brake response even in winter conditions
• Superior Anti-Corrosion Protection – Protects brake cylinders, pistons and metal components from rust and degradation
• Rubber Compatibility – Safe for all brake hose and seal materials in modern vehicles
• Moisture Resistance – Formulated to minimise water absorption from air, which naturally degrades brake fluid over time

When to Use / Replace?

Replace your brake fluid every 2 years as standard maintenance, or every 1 year if your vehicle uses DOT 3 fluid. Brake fluid absorbs moisture from the air, which lowers its boiling point and reduces braking safety. Even if you don't notice any symptoms, regular replacement ensures your brakes respond instantly when you need them most.

Use this fluid for all passenger cars, commercial vehicles and light-duty applications. Always check your vehicle manufacturer's specifications before use.

Storage and Shelf Life:

Store in a cool, dry place away from direct sunlight. Unopened containers maintain quality for extended periods. Once opened, use within a reasonable timeframe and reseal tightly to prevent moisture absorption.

Frequently Asked Questions

Q: Can I mix TRW DOT 4 with other brake fluids?
A: DOT 4 fluids are generally compatible with each other, but mixing brands is not recommended. Always use the same fluid type and brand for consistent performance. If you must switch brands, flush the system completely first.

Q: Why does my brake fluid need replacing if it looks clean?
A: Brake fluid absorbs moisture invisibly from the air. Over time, this water content lowers the boiling point, making your brakes less responsive under heavy use. Replacement every 2 years prevents this degradation, even if the fluid appears clear.

Q: Is DOT 4 suitable for my older vehicle?
A: DOT 4 is compatible with most modern and older vehicles that originally used DOT 3 or DOT 4. However, always verify your vehicle's manual or consult a mechanic. Never use DOT 5 (silicone-based) fluid unless specifically required, as it is not compatible with standard brake systems.