High performance polyglycol-based brake fluid. It far exceeds DOT 4 standards. Each bottle contains nitrogen, which prolongs its life and eliminates the risk of contamination while it is sealed at the factory. Extremely high dry boiling point: 312ºC (594ºF), which helps prevent steam lockouts and loss of effectiveness from overheating under demanding operating conditions, with excellent payback period. Wet boiling point: 205ºC (401ºF).