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 modern vehicles. Utilizing advanced Organic Acid Technology (O.A.T.), it delivers up to five years of continuous, all-season protection for all engine types, including aluminium blocks. This silicate and phosphate-free formula prevents corrosion, rust, and scale, safeguarding critical components like aluminium radiators and water pumps for prolonged engine life.When diluted to a 50% ratio, it provides exceptional temperature resilience with freeze protection down to -36°C and boil-over protection up to 130°C. This ensures reliable performance in harsh winters and prevents overheating during intense summer driving. The concentrated formula allows for custom dilution tailored to your vehicle manufacturer's specifications. Certified to BS 6580:2010, this high-performance 4.5-litre container is perfect for a complete system flush or multiple top-ups, offering superior value and dependable engine care.