Purpose and Specifications

LIQUI MOLY 1009 Hydro Valve Additive is an engine oil treatment designed to reduce noise from worn hydraulic lifters (also called hydraulic tappets) in gasoline and diesel engines. One 300 ml can treats up to 6 liters of motor oil.

This additive works by cleaning valve bores and oil passages, removing deposits that cause lifters to stick or rattle. It improves lubrication properties and restores proper hydraulic lifter function, increasing engine reliability and driving comfort.

• Compatible with: All commercial motor oils, petrol and diesel engines, turbocharged and naturally aspirated engines, engines with or without diesel particulate filters (DPF)
• Safe for: Catalytic converters and turbochargers
• Not suitable for: Motorcycles with wet clutches
• Volume: 300 ml per can
• Treatment ratio: One can covers 3 to 6 liters of oil

When to Use

Add this additive to your engine oil when you notice a rattling or ticking noise from the engine, especially during cold starts or idle. The product is self-mixing and can be added at any time without draining oil. For best results, use with every oil change. Shake well before use.

Typical engine oil change intervals are 10,000 to 15,000 km or every 6 to 12 months, depending on your vehicle and driving conditions. If you experience lifter noise before your next scheduled oil change, add this treatment immediately for quick noise reduction.

Frequently Asked Questions

Q: Can I use this with any engine oil?
A: Yes. This additive is compatible with all commercially available motor oils in both petrol and diesel engines.

Q: How quickly does it work?
A: The product can be added at any time and provides immediate effect. You should notice reduced noise within the first few engine starts.

Q: Is it safe for modern engines with emission systems?
A: Yes. It has been tested and confirmed safe for use with catalytic converters and turbochargers, making it suitable for modern vehicles.