Purpose and Specifications

ATE DOT 4 Brake Fluid (03.9901-6212.2) is a premium glycol-based hydraulic fluid designed to deliver reliable braking power in cars, trucks, and motorcycles with ABS, ESC, and clutch systems. This 1-liter can ensures smooth operation by resisting heat buildup during hard stops, preventing brake fade in stop-and-go traffic, towing, or mountain driving. It lubricates moving parts to reduce wear on calipers and master cylinders, protects against rust and corrosion, and maintains seals to avoid leaks. With excellent cold-weather flow down to -40°C and high-temperature stability up to extreme braking conditions, it outperforms DOT 3 for demanding use while being fully compatible and mixable with DOT 3 systems.

When to Use / Replace?

Use ATE DOT 4 for everyday driving with heavy loads, performance vehicles, or any system specifying DOT 4. Replace every 2 years or 40,000 km to counter moisture absorption that lowers performance over time - check fluid color; dark or cloudy means it's time. Shelf life is 3-5 years unopened in a cool, dry place. Ideal for severe service like track days or frequent towing where brakes hit high temps regularly.

• High boiling point fights vapor lock and fade in hot conditions
• Moisture protection extends component life
• Low-temp flow for reliable starts in winter