Purpose and Specifications

LIQUI MOLY Hydraulic Lifter Additive (300ml) is a high-performance formula that quiets noisy hydraulic lifters in gasoline and diesel engines. It cleans oil passages and valve bores to restore smooth operation, improves engine oil lubrication for less wear, and works safely with turbochargers and catalytic converters.

• Volume: 300 ml - treats up to 6 liters of motor oil (minimum 3 liters for best results)
• Compatibility: All commercial motor oils in gas and diesel engines; not for motorcycles with wet clutches
• Operating temps: Effective from cold starts to high-heat driving up to 120°C engine conditions
• Shelf life: 4 years unopened; use within 2 years after opening for full potency

When to Use / Replace?

Add at any time to dampen lifter tick - pour in, run engine until warm. For lasting quiet performance, add after every oil change (every 10,000 km or 12 months). Replace if lifter noise returns after 5,000-10,000 km of use, or during next service.

FAQ

Q: How soon does it quiet noisy lifters?
A: Many notice quieter operation after 100-1,000 km of driving, with full cleaning effect in 1-2 weeks.

Q: Is it safe for my DPF or turbo?
A: Yes, fully tested safe for diesel particulate filters, turbos, and catalytic converters.

Q: Can I use it in low-oil engines?
A: Needs at least 3 liters of oil; top up oil first if low for optimal results.