Product Code: HI8-3140
Product Benefit
Brake Fluid DOT 4 is a high-performance glycol ether-based hydraulic fluid formulated for modern vehicles with disc and drum braking systems. With a dry boiling point above 260°C and a wet boiling point over 160°C, it provides enhanced resistance against vapor lock, brake fade, and fluid degradation compared to DOT 3. It is recommended for high-demand vehicles requiring improved thermal stability.
DOT 4 meets ISO 4925, FMVSS 116, SAE J 1703 & J 1704 specifications. Its balanced formulation protects against rust and corrosion in ferrous and non-ferrous metals, while conditioning seals to prevent leaks. With excellent viscosity control across extreme temperatures, it ensures safe, consistent braking in both hot and cold conditions.
Key Benefits of Dot 4 Brake Fluid :
Higher boiling point than DOT 3, offering superior fade resistance.
Meets international performance and safety standards.
Protects metal brake parts and conditions seals.
Performs reliably in modern high-performance braking systems.
Available in convenient and bulk packaging for workshops and fleets.
Directions for Use:
Follow manufacturer recommendations for fluid type and service intervals. Store fluid in original, sealed containers to avoid contamination. Replace fluid at regular intervals for best braking safety.
Packaging Availability:
Available in Bulk, 200 L, 20 L, 4 L, and 500 mL sizes.
DOT 4 meets ISO 4925, FMVSS 116, SAE J 1703 & J 1704 specifications.
1. What is the difference between DOT 3 and DOT 4 brake fluid?
DOT 4 has higher dry (≥260°C) and wet (≥160°C) boiling points, making it more suitable for high-performance or ABS-equipped vehicles.
2. Can DOT 4 be used in place of DOT 3?
Yes, DOT 4 is backward compatible with DOT 3. But never substitute DOT 3 in a DOT 4-specified system.
3. What is DOT 4 made from?
A blend of glycol ethers, corrosion inhibitors, and lubricants to ensure smooth operation and protection.
4. Is DOT 4 brake fluid hygroscopic?
Yes. It absorbs moisture over time, reducing its boiling point. Regular replacement is essential.
5. What colour is DOT 4 brake fluid?
Hi-Tec DOT 4 is a clear blue liquid for easy identification.
6. How often should DOT 4 be changed?
Typically every 1–2 years, or sooner for high-performance vehicles.
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