This polyglycol based brake fluid vastly exceeds the highest DOT specs. For use in all systems that require a DOT 3, DOT 4 or DOT 5.1 fluid. With its very low viscosity, this brake fluid is specially designed for today’s newer ABS systems where a very thin fluid is needed to circulate in modern complex ABS systems with microvalves and anti-locking systems. Also for older, first generation ABS systems more sensitive to a brake fluid’s viscosity. A full synthetic based fluid that has unreal 509 degree dry boiling point, and similar 365 degree wet boiling point, it will outlast all normal Dot 3 and Dot 4 fluids easily. Each container is filled with nitrogen to increase the shelf life and eliminate contamination while factory sealed.