AQUA-TECH Heavy Duty is a high-performance, long-life antifreeze/coolant designed to deliver exceptional protection against corrosion, freezing, and boiling. Free from nitrites, amines, phosphates, and silicates, this ethylene glycol-based formula is ideal for diesel commercial, agricultural, heavy-duty construction equipment, light-duty vehicles, and passenger cars. Engineered for a long service life, it eliminates the need for an initial charge of Supplemental Coolant Additive (SCA) at the initial fill, offering protection up to 960,000 kilometers or 12,000 hours (6 years) in Class 7 to 8 trucks, and up to 200,000 kilometers (5 years) in passenger cars and light-duty vehicles. AQUA-TECH Heavy Duty reduces water-pump failures, hard-water-scale deposits, and silicate gel formation, ensuring comprehensive cooling system component protection. Compliant with ASTM D6210, D3306, and BS 6580 standards, AQUA-TECH Heavy Duty guarantees reliable performance and peace of mind for all your vehicle needs.