Blue Antifreeze Ultra Concentrate IAT Inorganic For Classic Vehicles 5 Litre 5L
The coolant should be typically flushed and changed, every two years. Cooltech 41 IAT Ultra 5 Litre. About Cooltech 41 IAT Ultra 5 Litre. Winter (CT 41 IAT Ultra 33% / Water 66%) -18°C. Normal (CT 41 IAT Ultra 25% / Water 75%) -12°C.