Brake Fluid DOT 4

Brake & Clutch Fluid

BULWARK BRAKE FLUID DOT 4 is a superior quality glycol ether-based fluid with advanced corrosion inhibitors suitable for use in disc and drum brakes and hydraulic clutch systems where a non-petroleum-based DOT 4 fluid is specified and provides extended service life. 

BULWARK BRAKE FLUID DOT 4 has a shelf life of at least three years when stored in original closed, airtight containers at temperatures of maximum 40 °C.


The brake fluid is hygroscopic and must be stored in tightly sealed containers. After removal of brake fluid, the containers must be closed immediately. It is not recommended to use where DOT 5 brake fluids are specified.

Performance Level

  • SAE J 1704

  • FMVSS 116 DOT 4

Key benefits

  • Extremely low viscosity at low temperatures

  • Product contains multi-metal corrosion inhibitors which gives engine excellent protection for ferrous & non-ferrous metals.

  • Compatible with other DOT 4 brake fluids.

  • Exceptional lubricity performance and thermal stability provides extended service life.

  • Superior elastomer compatibility.