Best Liqui Moly Vehicle Additives of 2026

LIQUI MOLY Cera Tec is a high-tech engine additive that enhances performance from the very first use. By using advanced ceramic compounds, it ensures smoother engine operation, which can lead to a longer lifespan for your engine. You will also benefit from lower fuel consumption and reduced emissions thanks to its ability to diminish friction. Adding it during oil changes is simple; just shake the 300 ml bottle and mix it with up to 5 litres of engine oil for lasting benefits of up to 50,000 km.

The LIQUI MOLY Engine Flush is designed to thoroughly clean your engine from the inside. It effectively cleans and flushes out the oil systems of both petrol and diesel engines, ensuring optimal performance. One 500 ml can is sufficient for engines with up to 5 litres of oil, making it an efficient choice. By removing deposits from lubrication holes and oil screens, you can reduce engine noise and oil consumption, leading to a smoother and more economical driving experience.

The Liqui Moly Injection Cleaner is designed for petrol engines, effectively removing deposits from injection valves, intake valves, spark plugs, and the combustion chamber. This helps prevent issues such as rough engine running and starting problems, ensuring a smoother driving experience. If you face difficulties like irregular idling or performance losses, this cleaner can resolve these issues caused by contaminated injection systems. Additionally, with one 300 ml can treating up to 70 litres of fuel, it offers a convenient solution for maintaining your engine's efficiency.

The LIQUI MOLY Filter Protector is a highly effective diesel additive designed to reduce particulate build-up in your diesel particle filter. By using this product, you can extend the service life of your filter, especially if your vehicle is often used for short trips or city driving. It is easy to use, as you simply add it to your fuel every 2,000 km. Additionally, it helps ensure optimum combustion of the fuel, reducing soot formation and lowering harmful emissions.

The Liqui Moly Hydraulic Tappet Additive is designed to enhance your engine's performance. It effectively prevents hydro tappet noise, ensuring a quieter and more comfortable ride. By cleaning lubrication holes and ducts in the oil circuit, this additive secures optimal performance of the hydro tappets. It's suitable for all petrol and diesel engines and can be mixed with any commercially available motor oils, offering great convenience. Just one 300 ml can is enough for engines with up to 6 litres of motor oil.

The LIQUI MOLY Oil Saver is a highly effective additive designed to regenerate rubber and plastic engine seals, helping to eliminate oil stains under your vehicle. By counteracting oil dilution, it aids in reducing engine noise and oil consumption, which can enhance the performance of your engine. Compatible with all petrol and diesel engines, this product is easy to use; simply add it to your motor oil at any time and let your engine warm up. Enjoy a smoother driving experience with this convenient solution.

LIQUI MOLY Speed Tec Diesel is a highly advanced fuel additive designed to enhance your driving experience. It significantly improves acceleration in the partial load range, making your vehicle feel more responsive. This product is suitable for all diesel engines, including those with diesel particle filters, ensuring compatibility with both conventional diesel and bio-diesel fuels. Regular use at each refuelling can lead to an overall boost in performance, providing you with a more enjoyable drive.

LIQUI MOLY Fuel Treatment is designed for petrol injection systems, whether they are turbocharged or not. It helps maintain and protect your entire fuel system from wear and deposits, ensuring your engine runs smoothly. By using this treatment, you can improve your engine's performance and reduce fuel consumption, which also lowers emissions. For optimal results, simply add it to your fuel tank every 2,000 km, as one can treats up to 75 litres of fuel.

The Liqui Moly Diesel Cleaner is designed to reduce pollutant emissions, making it ideal for optimising smoke opacity before an emissions test. It is suitable for all diesel vehicles, including those with Common Rail and pumped-jet injection systems. To keep your engine running smoothly, simply add the cleaner to your tank during each inspection and after any fuel system repairs. By mixing it with your fuel over approximately 2,000 km, you can effectively eliminate potential problems, ensuring your vehicle performs at its best.

LIQUI MOLY Oil Loss Stop is suitable for all petrol and diesel engines, including those with a diesel particulate filter. You can mix it with any commercial engine oil, making it a versatile choice for your vehicle. This additive helps regenerate rubber and plastic seals in your engine, effectively reducing oil consumption through piston rings and valve guides. After just 600 to 800 kilometres, you will notice a significant sealing action that enhances your engine's performance.