A special fluid produced on the basis of high quality and specially selected alcohols and glycols, which enable normal operation of air systems of vehicles, at very low temperatures and high humidity. Enables normal operation up to -50°C. It is intended for brake systems of buses, trucks and similar vehicles. It is used in all air brake systems with pressure throughout the year. Prevents water freezing throughout the system. Protects the system against corrosion. Dissolves oil and fat deposits. Maintains the brake valves clean. Prevents induration of the rubber components.