Purpose and Specifications

HELLA DOT 4 brake fluid is a premium hydraulic fluid designed for modern vehicles with advanced braking systems, including ABS and electronic stability control. This 1-litre bottle meets strict international safety standards (ISO 4925 Class 4, SAE J 1704, FMVSS 116 DOT 4) and is approved by major manufacturers including Renault, Toyota, Mazda, Ford, and Nissan.

The fluid maintains reliable braking performance across a wide temperature range. It resists boiling under extreme heat (dry boiling point: 260°C, wet boiling point: 160°C) and flows smoothly in cold conditions, ensuring consistent brake response whether you're driving in summer heat or winter cold.

When to Use and Replace

Use this fluid if:

• Your vehicle manufacturer specifies DOT 4 brake fluid in the owner's manual
• You drive a modern car with ABS or electronic stability systems
• You need a reliable replacement during routine brake system maintenance

Replacement schedule: Most manufacturers recommend checking brake fluid condition every 12 months and replacing it every 2 years, as the fluid absorbs moisture over time and loses effectiveness. If you notice soft or spongy brake pedal feel, have your brakes inspected immediately.

Storage: Keep the sealed bottle in a cool, dry place away from direct sunlight. Once opened, use the fluid promptly and reseal tightly to prevent moisture absorption.

Frequently Asked Questions

Can I mix DOT 4 with other brake fluid types?
No. HELLA recommends using only the brake fluid specified by your vehicle manufacturer. Mixing different DOT types can reduce braking performance and damage brake system components.

Why does brake fluid need replacing if it looks clean?
Brake fluid absorbs moisture from the air even in sealed containers. This moisture lowers the boiling point, reducing safety margins during hard braking. Regular replacement prevents brake fade and maintains stopping power.

Is this fluid suitable for vehicles with electronic braking systems?
Yes. DOT 4 fluid is specifically recommended for modern vehicles with ABS and electronic stability programs due to its low viscosity, which ensures rapid response in these sensitive systems.