AMSOIL DOT 3 & DOT 4 100% Synthetic Brake Fluid - 12 oz

AMSOIL DOT 3 & DOT 4 100% Synthetic Brake Fluid is a premium synthetic brake fluid engineered for street vehicles and powersports applications that require DOT 3, DOT 4, or DOT 5.1 brake fluid. AMSOIL positions it for strong braking performance, maximum ABS and traction-control responsiveness, and stable viscosity across a wide temperature range.

Designed to fight water contamination, maintain firm pedal feel, and protect brake-system components, this fluid helps resist boiling, corrosion, and performance loss as moisture enters the system over time. AMSOIL also says a nitrogen blanket is added to each bottle during manufacturing to help purge moisture and preserve performance.

Built for daily-driven and performance street applications, this brake fluid is ideal for customers who want a premium replacement fluid for vehicles requiring DOT 3, DOT 4, or DOT 5.1. AMSOIL specifically says do not mix with DOT 5 fluid.

Performance tier

Top tier – street / performance brake fluid

Developed for street-driven vehicles and powersports applications where consistent pedal feel, water contamination resistance, and ABS responsiveness are important.  

Features

Maximum ABS and traction-control performance
Excellent ABS and traction-control responsiveness
Fights water contamination
Stable viscosity over a wide temperature range
Superior cold-weather performance
Helps maintain firm pedal feel
Protects brake parts, lines, and seals from corrosion and wear 

Compatible with applications that require DOT 3, DOT 4, or DOT 5.1 brake fluid. Do not use where DOT 5 is required. Always verify the correct fluid specification in the owner’s manual before use.

Specifications

Type: synthetic brake fluid
DOT compatibility: DOT 3 / DOT 4 / DOT 5.1
Product code: BFLVCN-EA
Available size in this listing: 12 oz bottle
Dry equilibrium reflux boiling point: 271°C / 520°F
Wet equilibrium reflux boiling point: 187°C / 368°F
Viscosity at -40°C: 817 cSt
Viscosity at 100°C: 2.0 cSt
Brand: AMSOIL 

AMSOIL recommends changing this fluid every two years for maximum performance.

Note

Do not mix with DOT 5 brake fluid.

Always verify the required brake fluid specification before use and avoid exposing brake fluid to moisture during service.

Not sure what to run? message us and we’ll recommend the right setup for your build

Recommended pairings

AMSOIL Severe Gear
AMSOIL DOMINATOR® racing oil