LIQUI MOLY Oil Additive Cera Tec 300 ml - Ceramic Wear Protection

In this review the LIQUI MOLY CERA TEC oil additive is judged as a targeted solution for owners who want quieter, longer-lasting engines and modest fuel savings. The single biggest reason to consider it is its high-tech ceramic compound that reduces metal-to-metal contact and friction when mixed into motor oil, offering measurable smoothness and protection without complicated installation. For drivers of petrol and diesel cars, and for anyone who wants a simple add-in treatment that claims up to 50,000 km of protection, this product provides practical, evidence-backed benefits.

Key Features

• Mixable with all motor oils: CERA TEC is formulated to be self-mixing into commercially available motor oils so you can add it during routine oil changes without changing your base oil.
• Ceramic wear protection: The ceramic compounds reduce friction and prevent direct metal-to-metal contact, helping extend engine life and reduce cylinder wear.
• Stable under stress: The additive remains stable under high thermal and dynamic loads so protection persists during severe operating conditions.
• Filter compatibility: The formula creates no deposits and is compatible with common filter systems, avoiding clogging or interference with oil circulation.
• Wide temperature range: CERA TEC resists extremely high and low temperatures, maintaining its protective properties in diverse climates.
• Fuel economy benefit: The low-friction effect can reduce fuel consumption slightly, which customers report as improved gas mileage on long highway runs.

Who It's For

This product suits petrol and diesel vehicle owners who perform regular oil maintenance and want an additive that is easy to use and durable. It is particularly useful for drivers who notice engine noise at cold starts, those seeking smoother freeway cruising, or owners looking to reduce cylinder wear and achieve modest fuel economy gains.

Not everyone needs this: people who have wet-clutch transmissions should avoid CERA TEC, and owners seeking dramatic performance changes or full engine rebuild benefits should look at mechanical servicing rather than an oil additive alone.

Pros & Cons

Pros

• Quieter engine operation, especially noticeable during cold starts.
• Improves engine smoothness and reduces friction for longer component life.
• Compatible with standard oil filters and remains stable under high loads.
• Easy to add and self-mixes into up to 5 liters of motor oil, providing long-lasting protection.

Cons

• Not suitable for use with wet clutches, so it is unsuitable for some motorcycles and specific transmissions.
• Benefits are incremental rather than dramatic; fuel savings and noise reduction are noticeable but modest.

Specifications

Product type	Ceramic oil additive
Volume	300 ml
Compatibility	Mixable with all commercially available motor oils
Coverage	Sufficient for 5 liters of motor oil
Protection duration	Provides protection up to 50,000 km
Use limitations	Not suitable for wet clutches
Temperature performance	Resists extremely high and low temperatures

Our Verdict

LIQUI MOLY CERA TEC is a sensible, well-engineered additive for motorists who want quieter starts, smoother high-speed driving, and incremental fuel economy improvements. It is good value for owners who perform regular oil changes and need a low-risk, long-lasting wear protection that integrates with existing oils and filters.

Frequently Asked Questions

Can I add CERA TEC to any motor oil?
CERA TEC is formulated to be mixable with commercially available motor oils and self-mixes when added to the oil.

How much oil does one 300 ml bottle treat?
One 300 ml bottle is sufficient for treating up to 5 liters of motor oil.

Is it safe for my transmission or clutch?
It provides wear protection for engines, transmissions, pumps and compressors, but it is not suitable for use with wet clutches.