Amsoil 100% Synthetic Brake Fluid Dot 3 & 4 (355ml)

Reliable Brake Performance!

The AMSOIL 100% Synthetic Brake Fluid DOT 3 & 4 (355 ml) is a high-performance brake fluid engineered to provide dependable hydraulic braking performance in passenger cars, light trucks and powersports applications that require DOT 3, DOT 4 or DOT 5.1 specifications. Its advanced synthetic formulation offers superior thermal stability, strong resistance to water contamination and enhanced ABS and traction-control responsiveness — delivering consistent, smooth braking under a wide range of conditions. 

• Meets DOT 3, DOT 4 & DOT 5.1 Standards — suitable for systems calling for any of these brake fluid classifications (do not mix with silicone-based DOT 5). 
• Superior Thermal Stability — maintains performance where brake systems generate high temperatures, helping prevent fluid boiling and vapor lock. 
• Resists Water Contamination — synthetic brake fluid chemistry preserves higher boiling points even with moisture absorption, helping ensure firm pedal feel and reliable braking.
• Enhanced ABS & Traction-Control Response — low-viscosity fluid supports effective operation of modern brake safety systems. 
• Stable Across Broad Temperatures — flows effectively in extreme cold for dependable stop power and retains stability under high thermal stress. 
• Wide Vehicle Compatibility — ideal for everyday street use and demanding situations in cars, motorcycles, ATVs, UTVs and light trucks. 

🛠️ How to Use

1. Confirm correct brake fluid spec in your vehicle’s owner manual (DOT 3, DOT 4 or DOT 5.1). 
2. Flush existing fluid from the brake system according to manufacturer’s procedures. 
3. Fill the master cylinder reservoir with AMSOIL synthetic DOT 3 & 4 brake fluid up to the recommended level. 
4. Bleed the brake system to remove air pockets and ensure a solid pedal feel. 
5. Check fluid level again after bleeding and top up if necessary. 
6. Dispose of old fluid responsibly according to local regulations. 

For reliable, high-temperature braking performance and strong resistance to water-induced boiling and vapor lock, the AMSOIL 100% Synthetic Brake Fluid DOT 3 & 4 delivers balanced protection and hydraulic stability — ideal for both daily driving and demanding braking scenarios.