Brake Fluid DOT 4 is a synthetic brake fluid based on glycol ethers, alkyl polyglycols and glycol ether esters. It contains inhibitors to prevent the corrosion of metallic brake components and to reduce oxidation at increased temperatures. This means that no acid containing decomposition products are able to form. Brake Fluid DOT 4 was specially developed to extend the operating life of components in the hydraulic brake and clutch systems of motor vehicles. It has a high wet and dry boiling point, thus ensuring safe braking even after the absorption of some moisture over an extended period of use. Special moisture scavengers help to prevent against the formation of steam bubbles. Brake Fluid DOT 4 is also ideally suited for use in ABS brake systems.
Ideally suited to use with all disk and drum brake systems, as well as motor vehicle clutch systems for which a synthetic brake fluid of this specification is prescribed. The brake fluid is also ideally suited to use in ABS brake systems.
Specifications and approvals
FMVSS 116 DOT 4 ; FMVSS 116 DOT 3 ; SAE J 1704 ; SAE J 1703 ; ISO 4925 Class 4 ; ISO 4925 Class 3