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10 Best friction reducing additives for optimal engine performance

Welcome to our top 10 product reviews for friction reducing additives for optimal engine performance. We've scoured the market to bring you the best of the best, with products ranging from a 7.1 score up to a whopping 9.8 score!

Updated July 2025
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LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1
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9.8
Exceptional

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LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1

Main Highlights

SMOOTHER ENGINE PERFORMANCE FROM VERY FIRST USE: An engine additive formulated with high-tech ceramic compounds, high thermal resilience. Additive ensures smoother-running engine, extending the engine’s lifespan. Can be used with manual & automatic transmissions. Not suitable for use with wet clutches.

LOWER FUEL CONSUMPTION and diminished emission of pollutants due to smoother engine operation.

EASY TO ADD DURING OIL CHANGES: The 300 ml bottle is sufficient for up to 5 liters of engine oil. Shake well before use and add to fresh oil. Can be mixed with all gear & engine oils on the market. Long-lasting performance, up to 50,000 km.

CERTIFIED EFFECTIVENESS proven by TÜV Thüringen: Chemical components in Cera Tec smooth out rough surfaces, the ceramic particles fill in uneven surface imperfections. Prevents direct contact of all metal parts, reducing friction and wear & tear. Turbo & Cat tested.

EVERYTHING THAT DRIVES WORKS BETTER WITH LIQUI MOLY: We manufacture over 4,000 products: engine oils, additives, vehicle care, chemical servicing and repair, adhesives and sealing products. Our products are currently distributed to over 150 countries worldwide. They are popular everywhere, ensuring a superior driving experience and improved engine performance.

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9.8
Exceptional
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4
Anti-Wear Engine Treatment Oil Additive,Protector Agent For Engine Protection,Efficient Engine Anti-Wear Agent,Anti-Friction Engine Performance Additive,Car Engine Anti-Wear Protection Agent
9.2
Very Good

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Anti-Wear Engine Treatment Oil Additive,Protector Agent For Engine Protection,Efficient Engine Anti-Wear Agent,Anti-Friction Engine Performance Additive,Car Engine Anti-Wear Protection Agent

Main Highlights

High-Efficiency Engine Anti-Wear Agent Protector:Our anti-wear engine treatment oil additive is specially formulated to create a protective barrier on vital engine components, protector agent for engine protection reducing friction and minimizing wear during operation. This efficient engine anti-wear agent is mild and will not damage the engine

Extending Engine Life: By forming a protective barrier that the anti-friction engine performance additive reduces friction and the brake fluid wear on key engine components, this car engine anti-wear protection agent can help your engine effectively extend engine life, minimizing the risk of repair or replacement costs, while the engine oil ensure optimal performance

Reduce Noise and Blue Smoke:After using our brake cleaner, you will find that the noise and blue smoke emitted by the car are reduced. Noise and blue smoke are mainly caused by engine friction, the use of our engine anti-wear agent will reduce friction, car driving noise,blue smoke will be improved with engine anti-wear protection agent

Improve Fuel Efficiency:By reducing friction and promote engine performance, this diesel injector cleaner improves fuel efficiency, brake fluid allows you to travel longer distances using the same amount of fuel. High-efficiency engine anti-wear saves you money on fuel while maintaining the highest level of performance in your vehicle

Suitable For All Types Of Cars: Our car oil are suitable for all types of cars, you can use diesel fuel system cleaner in the engine suitable for gasoline cars, as well as conventional and synthetic oil, making diesel particulate filter cleaner a versatile choice for all types of vehicles. Our diesel engine cleaner can better protect your car

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9.2
Very Good
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One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

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How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched