10 Best Additives For Noisy Engine Lifters 2026 in the United States

Liqui Moly Oil Additive Cera Tec + Valve Clean is designed to enhance engine performance by reducing friction and fuel consumption while also cleaning and protecting the engine. Its mixability with all commercially available motor oils and stability under high loads make it versatile for various engine types, both petrol and diesel. The additive offers protection against corrosion and wear, which is beneficial for maintaining engine longevity.

Users have reported smoother engine performance and lower emissions as key benefits. The product's popularity is reflected in its ranking as #2 in Engine & Oil Fluid Additives. However, one potential drawback is that it comes in relatively small bottles (300ml for the oil additive and 150ml for the valve clean), which might require frequent purchases for larger engines or prolonged use. Additionally, the initial cost might be higher compared to some other additives on the market.

For those looking to address noisy engine lifters and improve the health of their engine, this product appears to be a solid choice.

The Archoil AR9100 Oil Additive is a versatile product designed to improve engine performance and reduce noise, particularly in Power Stroke engines. This 16-ounce jug is suitable for a variety of engine types, including diesel and gasoline, and can also be used in gearboxes, hydraulics, differentials, and power steering systems. One of its significant strengths is its ability to fix cold start injector problems in 6.0L and 7.3L Power Stroke engines, making it a great option for those experiencing starting issues in colder climates.

It also effectively reduces engine noise, vibration, and heat, adding to the smoothness and longevity of engine components. The additive contains essential components like viscosity modifiers, detergents, dispersants, anti-wear agents, friction modifiers, and seal conditioners, which collectively contribute to its performance-boosting capabilities.

On the downside, it may not be the most economical option for regular use due to its price and the necessity to treat the engine repeatedly over time. Additionally, while it's praised for its effectiveness, the improvement may vary depending on the specific engine condition and type. With a strong presence in the automotive market, the Archoil AR9100 proves to be a reliable choice for those looking to address noisy lifters and improve engine performance.

The Liqui Moly 20004 Hydraulic Lifter Additive is designed to improve the lubrication properties of engine oil, which is essential for noisy engine lifters. One of its key strengths is its ability to clean valve bores and prevent engine noises caused by hydraulic tappets, making it a good choice for vehicles with these issues. Additionally, it is compatible with turbochargers and catalytic converters, which is a significant advantage for modern engines.

The product's flash point of 60 degrees Celsius indicates its stability under normal operating conditions. The additive's effectiveness may vary depending on the engine's condition and the type of oil used. Some users might find the 300 ml quantity insufficient for larger engines or multiple treatments. It is also worth noting that the product is highly ranked in its category (#1 in Hydraulic Fluid Additives), indicating its popularity and reliability.

The Liqui Moly 20004 is a well-regarded product that addresses common issues with noisy engine lifters, especially for vehicles with turbochargers and catalytic converters. Users looking for a solution to improve oil lubrication and reduce engine noise would find it beneficial, though its impact may depend on specific engine conditions.