Purpose and Specifications

MA PROFESSIONAL DOT4 1L brake fluid is a reliable mid-range choice for hydraulic brake and clutch systems in cars, trucks, and performance vehicles. This synthetic glycol-based formula delivers smooth, powerful braking even under heavy use, with a dry boiling point over 230°C (446°F) to prevent vapor lock and a wet boiling point around 155°C (311°F) after absorbing some moisture. It flows easily at low temps down to -40°C for cold starts and stays stable up to 260°C, protecting seals, preventing corrosion, and lubricating components for longer life.

• 1 liter bottle fits most flush jobs
• Universal DOT 4 spec meets FMVSS 116, ISO 4925, SAE J1703/1704
• Mixes with DOT 3 or other DOT 4 fluids
• Excellent rubber compatibility avoids seal swelling or cracking

When to Use / Replace?

Use MA PROFESSIONAL DOT4 in daily drivers, heavy-duty trucks, or track cars needing better heat resistance than DOT 3. Replace every 2 years or 40,000 km (25,000 miles) for street use, or every 12 months/10,000 km for racing to avoid moisture buildup that lowers boiling point and causes spongy brakes. Unopened shelf life is 3-5 years in a cool, dry spot.

FAQ

Can I mix this with my old DOT 3 fluid? Yes, it's fully compatible for top-offs, but do a full flush for best results.

Does it work in cold weather? Absolutely, stays fluid down to -40°C so brakes respond fast even in freezing conditions.

How do I know when to change it? Check for dark color or sponginess; test boiling point at a shop if unsure.