Silverhook SHAR4 Antifreeze Red 4.54 Litre

Silverhook Fully Concentrated Antifreeze O.A.T. - Red is a long-life coolant designed for modern engines, including those with aluminium blocks. Utilizing Organic Acid Technology (O.A.T.), it provides up to five years of protection and helps prevent rust and corrosion without silicates or phosphates. When diluted to 50% for use, it offers freeze protection down to -36°C and boil-over protection up to 130°C, supporting reliable performance in cold winters and hot summers. The concentrated formula allows custom dilution to meet vehicle manufacturer specifications and is suitable for a complete system flush or multiple top-ups. It’s certified to BS 6580:2010, indicating compliance with a recognized standard for automotive coolants.

Key features

• Fully concentrated antifreeze (O.A.T.) for long-life protection
• Silicate- and phosphate-free formula prevents corrosion
• Suitable for all engines, including aluminium blocks
• Freeze protection to -36°C at 50% dilution
• Boil-over protection to 130°C at 50% dilution
• Passes BS 6580:2010