This ready-to-use OAT (Organic Acid Technology) coolant is designed for year-round use in modern cooling systems that require ethylene-glycol-based antifreeze. It provides long-lasting and reliable protection against overheating, freezing, and corrosion. The advanced carboxylated formula effectively protects all key metals, including aluminum, copper, brass, cast iron, and steel, while preventing high-temperature corrosion in modern engines. It offers excellent thermal stability, resists deposit and foam formation, and ensures efficient heat transfer. The coolant is fully compatible with rubber hoses, seals, and plastic components, performs well even with hard water, and maintains stable performance throughout its service life. Free from silicates, nitrates, phosphates, and amines (NAP-free), it delivers an extended service interval of up to 250,000 km for passenger cars, 500,000 km for commercial vehicles, and up to 6 years for stationary engines.