If you’re seeking an oil additive that reduces friction, protects components, and improves overall engine longevity, Liqui Moly options are a strong choice. This guide highlights five top Liqui Moly oil additives suited for common petrol and diesel engines, including those with high mileage or demanding driving. Each product targets different needs, from wear protection to turbocharger compatibility. The buyer types here range from daily drivers seeking smoother engines to performance-focused users needing enhanced lubrication under high loads. Below is a concise summary table to help compare core benefits at a glance.
| Product | Best For | Key Benefit |
|---|---|---|
| LIQUI MOLY Ceramic Oil Additive Cera Tec | Everyday drivers and high-mileage engines | Ceramic wear protection and lower friction |
| Liqui Moly Hydraulic Lifter Additive | Vehicles with turbochargers or catalytic converters | Improved lubrication, cleans valve bores |
| Liqui Moly Viscoplus For Oil | All operating conditions, broad compatibility | Optimum lubrication and oil pressure |
| LIQUI MOLY Motor Oil Saver | Oil-thirsty engines and those with leaks | Reduces oil consumption and seals preservation |
| Liqui Moly 2009 Anti-Friction Oil Treatment (pk6) | High-load engines and towing | Extends oil life and reduces wear |
LIQUI MOLY Ceramic Oil Additive Cera Tec 20002
What it is: A ceramic-based additive designed to form a protective film inside engine bearings and contact surfaces. It mixes with most commercially available motor oils and remains stable under high thermal and dynamic loads. It is compatible with common filter systems and aims to reduce friction and wear. Best for drivers seeking long-term protection for gasoline and diesel engines without major changes to oil type.
Best for: Everyday drivers and older engines seeking smoother operation and wear protection. If you drive in stop-and-go traffic or tow occasionally, this additive can help reduce metal-to-metal contact. Use with conventional or synthetic oils as directed.
Why chosen: Cera Tec’s ceramic coating approach offers a durable barrier that complements regular oil changes. The product’s compatibility with various filters reduces the risk of deposits or incompatibilities in mixed fleets.
Limitations: The coating effect is not a substitute for regular maintenance or for engines with known pre-existing mechanical damage. Effects may vary with engine design and oil viscosity. Consistent use according to the manufacturer’s directions is advised.
Liqui Moly Hydraulic Lifter Additive
What it is: A 300 ml oil additive focused on hydraulic lifters and valve train lubrication. It improves the oil’s lubrication properties and helps keep valve bores cleaner. Suitable for engines with turbochargers and those with catalytic converters, aiming to minimize lifter noise and wear.
Best for: Vehicles with turbocharged or modern emissions systems where lifter clarity and lubrication are critical. It’s a practical choice for drivers experiencing lifter tick or seeking improved valve train protection in demanding conditions.
Why chosen: This additive targets lifter wear directly, potentially reducing noisy operation and helping maintain smoother engine dynamics under high stress. It complements standard engine oils without requiring a change in oil type.
Limitations: It should be used as directed and not as a replacement for addressing mechanical issues such as worn lifters or severe sludge. Effectiveness depends on overall engine condition and oil regime.
Liqui Moly Viscoplus For Oil
What it is: An additive designed to optimize oil lubrication under a variety of operating conditions. It emphasizes maintaining ideal oil pressure and reducing overall oil consumption, contributing to steadier engine performance and efficiency.
Best for: Drivers who want stable lubrication across heat cycles, especially in climates with temperature fluctuations or heavy urban driving where oil pressure can dip.
Why chosen: Viscoplus focuses on broad performance stabilization, making it a solid general-purpose option for extending oil life and supporting consistent lubrication without major changes to existing oil blends.
Limitations: Individual results depend on engine design and current oil condition. It’s not a cure-all for severe oil leaks or major mechanical faults.
LIQUI MOLY Motor Oil Saver
What it is: An oil-saving additive that helps reduce consumption by improving piston ring and valve guide sealing, while also preventing blue smoke and reducing leaks at elastomeric seals. This product is designed to work with standard motor oils to extend change intervals and protect seals.
Best for: Vehicles with higher oil consumption or aging seals where minor leaks and smoke are concerns. It’s also suitable for drivers seeking more economical operation without changing oil brand.
Why chosen: By addressing seals and piston ring sealing, Motor Oil Saver targets common late-model engine issues that contribute to oil loss and emissions, offering a practical maintenance boost between service visits.
Limitations: It is not a substitute for major mechanical repairs or for engines with severe oil loss due to significant wear or damage.
Liqui Moly 2009 Anti-Friction Oil Treatment (pk6)
What it is: A high-load engine treatment that reduces wear and friction, designed for engines under demanding conditions such as heavy towing or high throttle driving. It’s formulated to protect engine oil and extend overall engine life.
Best for: Vehicles that regularly operate under heavy load or high-demand driving conditions where wear is more pronounced. Suitable for owners seeking longevity in high-stress engines.
Why chosen: The product targets wear reduction in demanding scenarios, offering a straightforward way to potentially extend engine oil life and resist wear in critical engine components.
Limitations: Effectiveness can vary with engine design and operating style. Regular maintenance and correct oil type remain essential components of engine care.
Buying Guide: Key Considerations For Liqui Moly Oil Additives
- Oil compatibility: Most Liqui Moly additives are designed to mix with common motor oils. Check viscosity and API/ACEA specifications to ensure compatibility with your engine and current oil.
- Driving conditions: If you tow, drive in extreme temperatures, or frequently push engines hard, choose products that emphasize wear protection and high-load performance (for example, anti-friction and ceramic-based formulations).
- Targeted protection: For lifter noise, valve train protection, or seal preservation, select additives that focus on those specific issues. Some products are broad-spectrum, while others are more specialized.
- Filter and deposit considerations: Ensure the additive is compatible with your engine’s oil filtration system and does not encourage deposits in engines with known sludge tendencies.
- Usage frequency: Most additives are intended for periodic use or single-application boosts. Follow the manufacturer’s dosing instructions and avoid excessive use.
FAQ
- Do Liqui Moly additives require a specific oil type? Most are designed to mix with commonly available motor oils. Check your current oil viscosity and API/ACEA rating.
- Are ceramic-based additives better than traditional ones? Ceramic additives offer a durable wear barrier, but results depend on engine design and operating conditions.
- Can these additives fix existing engine damage? No. They aim to reduce wear and improve lubrication but cannot repair already worn or damaged components.
- How often should I use these additives? Use per product directions; some are for single use, others recommended at regular oil-change intervals.
- Will additives affect emissions systems? Some products are formulated with compatibility for turbochargers and catalytic converters, but always verify with vehicle specifications.
- Do additives void warranties? Warranties vary by manufacturer and vehicle. Consult your dealer or warranty provider for guidance.