Silverhook Auto Tonic 325ml – Power Steering & Transmission Conditioner | Helps Stop Leaks

Silverhook Auto Tonic 325ml is a specially formulated additive designed to condition and protect power steering and automatic transmission systems. It helps stop and prevent leaks by revitalising hardened seals and gaskets, improving fluid performance, and extending the life of key components.

Ideal for use in cars, vans, and light commercial vehicles, this easy-pour treatment reduces noise, smooths operation, and improves steering and shifting response. It’s suitable for both top-ups and routine servicing and is compatible with most power steering and ATF fluids.

Trusted by mechanics and DIYers alike, Silverhook Auto Tonic is a cost-effective way to maintain your vehicle’s hydraulic systems and avoid expensive repairs.

Now available at ProParts Direct with fast UK delivery and trade pricing.