Premixed engine coolant (33%), for both petrol and diesel engines that cools and protects for up to 4 years. APPLICATION: For a wide range of petrol and diesel engines. It is premixed to a 33% mass glycol concentration. Improved engine corrosion protection helping to resist the formation of rust while protecting alloy heads and engines. Improved protection against cavitation in water pumps and hot spots (e.g., behind exhaust ports) in aluminium cylinder heads. Excellent hot weather protection - helps prevent the risk of the engine coolant boiling, leading to coolant loss and possible engine damage and subsequent failure. Excellent cold weather protection - reduces the real risk of coolant freezing solid in the engine coolant system and severely damaging engines and/or radiators.