At the heart of the braking system, the role of brake fluid is essential. Brake fluid is an incompressible fluid that must withstand very high temperatures. It boiling point determines its resistance to high temperatures. In competition, the vehicles operate under severe conditions and brake fluids with very high boiling points are used. Brake fluid must maintain a high cold flow and a hot flow, and it participates in the lubrication of moving parts in the brake (seals, pistons), provides corrosion protection of hydraulic components and the brake fluid must be compatible with joints.