Tectaloy unlimited ready to use premix coolant is an organic acid technology (OAT) radiator coolant, pre-mixed to 33% glycol concentrate. This is the perfect choice of coolant for applications where an extra load is placed on the engine. Tectaloy Unlmtd Ready to Use Pre-Mix is designed to meet the everyday demands of petrol and diesel vehicles. Its unique formula allows extra cooling system protection when required, such as four-wheel driving, towing heavy trailers or caravans. Silicate, phosphate and amine free. An excellent choice for high-performance multi-valve engines. 100% Corrosion protection when used as directed. 10 Years or 1,000,000km. -19°C Anti-Freeze Protection and +125°C Anti Boil Protection. Specifications: Contains 33% ethylene glycol. Type A Coolant. OAT corrosion inhibitors. Exceeds Australian Standards AS2108-2004. Size: 5 Litre, Colour: Red.