Mag 1 DOT 4 Brake Fluid 1 Gallon — High Wet Boiling, Corrosion-Resistant FMX Formula

MAG 1 DOT 4 Brake Fluid (1 gallon) is a high-performance hydraulic fluid engineered to protect brakes and clutches under heavy heat while resisting moisture and corrosion.

This specially blended DOT 4 formula meets FMVSS 116 and exceeds SAE J1703 standards, delivering strong wet boiling protection, consistent hydraulic feel and component lubrication for disc and drum systems. It’s formulated for vehicles that specify DOT 4 or DOT 3 fluids and is optimized for modern driving conditions that expose systems to repeated braking, towing, or spirited use.

How does MAG 1 DOT 4 improve brake reliability under heavy use?

MAG 1 DOT 4 raises the wet boiling threshold and maintains fluid stability at high operating temperatures, which helps reduce vapor lock and fade during repeated or sustained braking. Its formulation preserves hydraulic pressure transfer for predictable pedal feel.

• Minimum wet boiling point 311°F (155°C) to resist vapor formation
• Stable viscosity under heat for consistent brake response
• FMX friction management for smoother engagement

Will this fluid protect internal brake components from moisture and corrosion?

The MAG 1 blend contains additives that inhibit corrosion and control moisture-related degradation, extending the service life of seals, pistons and lines compared with untreated fluids. Regular fluid maintenance still matters to prevent long-term moisture accumulation.

• Corrosion inhibitors protect metal components
• Moisture resistance reduces internal oxidation and deposits
• Additives promote seal and rubber compatibility

Is this brake fluid compatible with my vehicle's system?

MAG 1 DOT 4 is suitable for hydraulic brake and clutch systems that call for DOT 4 or DOT 3 fluids. Always check your vehicle manufacturer’s specification; mixing with incompatible fluid types can affect performance and service life.

• Designed for systems specifying DOT 4 or DOT 3
• Safe for disc and drum brake assemblies and hydraulic clutches
• Meets FMVSS 116 for regulatory compliance

How does the FMX Technology benefit everyday driving?

FMX (Friction Management & Xtreme Protection) balances friction properties to help deliver consistent braking bite and reduced noise during stops. It also supports smoother clutch engagement in hydraulic clutch systems, improving drivability in city and highway conditions.

• Improved pedal modulation and consistent bite
• Reduced chatter and noise from controlled friction behavior
• Enhanced lubrication for hydraulic components

Who is this for: MAG 1 DOT 4 Brake Fluid (1 gallon) is geared toward drivers, technicians and fleet managers who need a reliable, high-temperature brake fluid that meets modern safety standards. It’s a practical choice for passenger cars, light trucks, SUVs and other vehicles specifying DOT 4 or DOT 3. Ideal for routine maintenance, brake system service, or when upgrading fluid to handle heavier use, it offers measurable protection against heat, moisture and component wear without altering factory system specifications.