Silverhook Concentrated Red Antifreeze O.A.T. 4.5 Litre D/ISHAR4

Silverhook

Silverhook Fully Concentrated Antifreeze O.A.T. Red 4.5 Litre is a premium, long-life coolant engineered for superior year-round engine protection. Utilizing advanced Organic Acid Technology (O.A.T.), it provides up to five years of continuous defense against corrosion, rust, and scale without harsh phosphates or silicates. This makes it exceptionally gentle yet effective for all engine types, including modern aluminium blocks, radiators, and water pumps.Dilute this concentrated formula as required to achieve powerful temperature resilience. It offers freeze protection down to -36°C and boilover protection up to 130°C, safeguarding your engine against severe winter cold and intense summer heat. Certified to BS 6580:2010, this high-performance antifreeze ensures optimal thermal management, reduces wear, and prolongs the life of your entire cooling system. The 4.5-litre size is perfect for a complete system flush or for multiple top-ups, delivering outstanding value and reliability for your vehicle.