Millers Universal Brake Fluid DOT 4 is a high boiling point brake fluid meeting current requirements of SAE J 1703 and FMVSS 116 DOT 4 and is suitable for all braking systems where a non-mineral fluid is requireders Universal Brake Fluid dot 4 offers enhanced performance against water absorption which improves resistance to vapour lock. Mutually compatible with all fluids meeting the same specifications increasing temperatures in braking systems due to higher vehicle performance and changes in brake friction material, DOT 4 ensures necessary performance.