LIQUI MOLY Hydraulic Lifter Additive 300ml

What Is LIQUI MOLY Hydraulic Lifter Additive?

LIQUI MOLY Hydraulic Lifter Additive is a high-performance engine oil additive developed to help reduce hydraulic lifter noise and maintain the cleanliness of the engine’s oil circulation system. It is designed to clean oil passages, valve bores and oil ducts that can become restricted by deposits over time. Its formulation also improves the lubrication properties of engine oil and supports proper operation of hydraulic tappets.

Hydraulic lifters, also known as hydraulic tappets, rely on engine oil pressure and clean oil passages to operate correctly. When deposits accumulate inside these components or their oil supply passages, they may contribute to unwanted ticking or tapping noises. LIQUI MOLY Hydraulic Lifter Additive is designed to help address oil-related contamination and support smoother hydraulic lifter operation.

How Does Hydraulic Lifter Additive Work?

The product is added directly to the engine oil, where it mixes with the lubricant and circulates through the engine’s oil system during operation. Its cleaning formulation helps remove deposits and contamination from oil passages and valve bores.

By helping maintain cleaner oil ducts, the additive supports the movement of engine oil to hydraulic tappets. It also improves the lubrication properties of the oil, helping hydraulic components operate more smoothly.

The product can also improve the function of timing chain tensioners that operate using engine oil pressure. This may help reduce noise associated with oil-pressure-operated timing chain tensioners.

Key Features and Benefits

• Helps reduce hydraulic lifter and tappet noise.
• Cleans oil passages and oil ducts.
• Helps remove deposits from valve bores.
• Supports proper hydraulic tappet operation.
• Improves the lubrication properties of engine oil.
• Helps maintain oil circulation through narrow passages.
• Supports the function of oil-pressure-operated timing chain tensioners.
• May help reduce timing chain tensioner noise caused by restricted oil flow.
• Suitable for compatible petrol and diesel engines.
• Tested for use with turbochargers and catalytic converters.

Suitable Applications

LIQUI MOLY Hydraulic Lifter Additive is suitable for compatible 4-stroke gasoline and diesel engines. It can be mixed with most commercially available engine oils and is designed for use in vehicles with or without turbochargers.

Typical applications include:

• 4-stroke petrol passenger cars.
• 4-stroke diesel passenger cars.
• Compatible turbocharged petrol engines.
• Compatible turbocharged diesel engines.
• Vehicles equipped with catalytic converters.
• Compatible vehicles with diesel particulate filters (DPF).
• Compatible vehicles with gasoline particulate filters (GPF).
• Engines equipped with hydraulic tappets or lifters.
• Compatible engines using oil-pressure-operated timing chain tensioners.
• Engines equipped with oil-running timing belts, where permitted by the vehicle manufacturer.

The product is not suitable for motorcycles with wet clutches. Always check the vehicle manufacturer’s recommendations before adding any engine oil treatment.

Product Specifications

Application and Dosage

LIQUI MOLY Hydraulic Lifter Additive is poured directly into the engine oil. One 300ml can is sufficient for approximately 3–6 litres of engine oil.

Application instructions:

1. Check the engine oil capacity and confirm that the product is suitable for your vehicle.
2. Shake the can well before use.
3. Open the engine oil filler cap.
4. Pour the 300ml contents into the engine oil.
5. Ensure the total oil level remains within the manufacturer’s recommended range.
6. Start the engine and allow it to warm up to operating temperature.

The product is self-mixing and can be added at any time. For best results, LIQUI MOLY recommends using the additive after each oil change to help maintain its effect. Follow the instructions on the original packaging and do not exceed the recommended oil level.

Why Choose LIQUI MOLY Hydraulic Lifter Additive?

Clean oil passages and suitable lubrication are important for hydraulic engine components. Hydraulic tappets depend on oil pressure to maintain their operation, and restricted oil passages can interfere with their normal function. LIQUI MOLY Hydraulic Lifter Additive is developed to help clean these passages and support proper hydraulic lifter operation.

Its formulation is also intended to improve the lubrication properties of engine oil and support oil-pressure-operated timing chain tensioners. This makes it a useful maintenance additive for compatible petrol and diesel engines where oil-related deposits may contribute to hydraulic tappet noise.

The product is compatible with most commercially available motor oils and is tested for use with turbochargers and catalytic converters. It is also suitable for compatible vehicles fitted with particulate filters and oil-running timing belts.

Important Usage Information

Hydraulic Lifter Additive is an engine oil treatment, not a fuel additive. It must be added to engine oil and not directly to the petrol or diesel tank.

Although it can help reduce noise caused by contaminated or sticky hydraulic tappets, it cannot repair mechanically damaged lifters, worn camshafts, faulty oil pumps or serious engine wear. Persistent tapping or knocking noises should be inspected by a qualified mechanic.

Do not use this product in motorcycles with wet clutches. Always follow the correct dosage and vehicle manufacturer’s maintenance instructions.

LIQUI MOLY Hydraulic Lifter Additive 300ml is designed to help reduce hydraulic tappet noise, clean engine oil passages and improve lubrication properties for compatible 4-stroke petrol and diesel engines.