Mag 1 DOT 4 Brake Fluid — 1 Gallon, High-Temp Protection & Moisture Resistance

Designed for disc and drum systems, this 1-gallon container of MAG 1 DOT 4 meets FMVSS 116 and exceeds SAE J1703 requirements, offering a reliable wet boiling point and enhanced component protection. Its advanced friction management formulation helps maintain consistent hydraulic pressure transfer and defends against corrosion and moisture-related degradation during everyday and demanding driving conditions.

How does MAG 1 DOT 4 perform under high-temperature driving?

MAG 1 DOT 4 is engineered to resist boiling and maintain hydraulic stability when brakes get hot. The formula's higher wet boiling point reduces the risk of vapor formation, helping preserve pedal feel and system responsiveness in extended or heavy-duty use.

• Minimum wet boiling point: 311°F (155°C)
• Stable viscosity for consistent pressure transfer
• Formulation targets vapor reduction at elevated temperatures

Will this fluid work for both brake and clutch systems?

Yes—MAG 1 DOT 4 is suitable for hydraulic brake and clutch systems that call for DOT 4 or DOT 3 fluids. It supports smooth engagement and reliable pressure delivery for clutch hydraulics while meeting the sealing and material compatibility needs of brake systems.

• Meets DOT 4 specifications and is compatible with DOT 3 systems where permitted
• Helps sustain consistent clutch engagement and brake pedal feel
• Safe for common rubber seals and hoses used in hydraulic systems

How does MAG 1 protect brake system components over time?

The formula contains additives that reduce moisture-related corrosion and wear, extending component life. By resisting water absorption and helping manage friction characteristics, it contributes to cleaner system operation and fewer maintenance issues.

• Moisture resistance to slow absorption and reduce internal corrosion
• Additives to help limit wear on metal parts and seals
• Friction management technology to stabilize pad and rotor interaction

What specifications and standards does this fluid meet?

MAG 1 DOT 4 complies with Federal Motor Vehicle Safety Standard (FMVSS) 116 and surpasses SAE J1703 requirements, ensuring it meets industry safety and performance benchmarks. These certifications indicate the fluid has been tested for boiling point, viscosity, and compatibility with brake system materials.

• FMVSS 116 compliant
• Exceeds SAE J1703 specification
• Appropriate for systems recommending DOT 4 or DOT 3 fluids

Who is this for: MAG 1 DOT 4 Brake Fluid in the 1-gallon size is intended for drivers, technicians, and fleet managers seeking a reliable, high-capacity hydraulic fluid for passenger cars, light trucks, and other vehicles that specify DOT 4 or DOT 3. It suits routine maintenance and refills, and is particularly useful for vehicles experiencing heavier braking or frequent stop-and-go operation where higher thermal performance and component protection are desired.