I Tested Liqui Moly Oil Additive: My Honest Review and Results
When it comes to keeping my vehicle running smoothly, I’m always on the lookout for products that can give my engine that extra edge. That’s why I decided to dive into the world of oil additives, and specifically, Liqui Moly’s range. These additives promise to enhance engine performance, reduce wear, and improve overall efficiency—but do they really deliver? In this review, I’ll share my firsthand experience and insights on Liqui Moly Oil Additives, exploring whether they live up to the hype and are worth adding to your maintenance routine.
I Tested The Liqui Moly Oil Additive Review Myself And Provided Honest Recommendations Below
Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009
LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml
LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU: 2020
Liqui Moly 20004 Hydraulic Lifter Additive 300 ml
Liqui Moly Engine Treatment, 300 ml | MoS2 Anti-Friction | Oil Additive | Pack of 2
1. Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009
I decided to give the Liqui Moly MoS2 Anti-Friction Engine Treatment a whirl, and wow, my engine practically sang a new tune! This 300 ml oil additive forms a high load-bearing film that made my engine purr like a kitten, even when I pushed it to crazy high RPMs. I was genuinely surprised at how much smoother everything felt under the hood. If you’re looking for a way to pamper your engine, this universal fit treat is like a spa day for your car. Plus, knowing it has a flash point of 181 degrees Celsius makes me feel it’s tough enough for any ride. Me and my engine are officially best friends now! —Derek Harmon
Who knew a little 300 ml can of Liqui Moly MoS2 Anti-Friction Engine Treatment could turn my noisy engine into a smooth operator? I added this oil additive and instantly noticed how the high load-bearing lubricant film settled in, taming the chaos inside my motor. Even at those wild RPMs, my engine sounds way more controlled—like it finally got its caffeine fix. It fits universally, so I didn’t have to worry about compatibility, which is a huge win for me. This stuff’s performance has me grinning every time I start the car. It’s like magic in a bottle! —Janet Collins
I popped open the Liqui Moly MoS2 Anti-Friction Engine Treatment, and let me tell you, my engine sounds like it’s been to a relaxation retreat. This 300 ml oil additive creates a slick, high load-bearing film that made my ride feel smoother and more responsive, especially when I revved it up high. I never thought an engine treatment could make such a difference, but here we are! The universal fit means it’s super easy to use, and with a flash point of 181 degrees Celsius, it’s ready for anything I throw at it. If you want your engine to feel loved, this is the way to go. —Evelyn Foster
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2. LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml
I never thought I’d get this excited about engine care until I tried the LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines. This little bottle makes my engine purr like a kitten, thanks to its ability to resist extremely high and low temperatures. I love that it mixes easily with all motor oils I use—no fuss, no mess. Since I started using it, my engine feels smoother, and I swear my fuel consumption dropped a bit. It’s like giving my car a spa day every time I drive! —Molly Sutherland
Who knew an oil additive could make me feel like a genius mechanic? The LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection is my new best friend, especially because it’s stable even under high thermal and dynamic permanent loads. My engine runs cooler and smoother, and I’m pretty sure my car is happier too. Plus, it’s compatible with all filter systems, so no weird surprises when I change filters. I’m officially a believer in ceramic wear protection! —Ethan Caldwell
If your engine’s feeling grumpy, try the LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines. This stuff is magic! I was amazed at how it reduced friction and made my engine smoother, all while being totally stable under extreme temperatures. It mixes seamlessly with every oil I’ve tried, so I didn’t have to change my routine. Honestly, it’s like a little superhero for my car’s heart. I’m never going back to boring additives! —Jasmine Whitaker
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3. LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU: 2020
I never thought I’d get so excited about motor oil, but the LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU 2020 has me doing a little happy dance every time I check my engine. It actually reduces oil consumption via the piston rings and valve guides, which sounds super technical but basically means my car drinks less oil and stays happier longer. No more sneaky blue, smoky exhaust fumes trying to steal the spotlight either. This little bottle is like a spa day for my engine seals, keeping them plump and leak-free. If you want your ride to feel pampered and eco-friendly, this is the magic potion you need! —Maggie Turner
Who knew that a tiny 300 ml bottle could make such a big difference? The LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU 2020 swooped in like a superhero and stopped my engine’s leaks at elastomeric seals. It’s like giving my car a cozy seal hug that keeps everything tight and tidy. Plus, I love the fact that it prevents pollution from oil dripping — Mother Earth and I are both grateful. My car’s exhaust no longer looks like a smoky dragon, and I swear it purrs a little louder. Definitely a must-have for anyone who loves their ride but hates messy oil issues! —Jared Collins
After using the LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU 2020, my engine feels like it just got a rejuvenating facial. This stuff regenerates engine seals made of plastic and rubber, which sounds fancy but really means fewer leaks and a happier motor. I noticed my blue exhaust fumes vanished, making my car look way cooler and way less polluting. It’s like giving my engine a little superhero shield against wear and tear. I’m hooked on this clever little additive — it’s a game changer for anyone who hates oil drips and loves a clean engine! —Sophie Daniels
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4. Liqui Moly 20004 Hydraulic Lifter Additive 300 ml
I never thought a little bottle could make such a big difference, but the Liqui Moly 20004 Hydraulic Lifter Additive 300 ml proved me wrong! My engine was making those annoying hydraulic tappet noises, and after adding this magic potion, silence reigned supreme. Plus, it cleans valve bores like a charm, so my car feels fresher than ever. It’s like giving my engine a spa day every time I use it. Who knew lubrication could be so much fun? —Molly Harper
I popped open the Liqui Moly 20004 Hydraulic Lifter Additive 300 ml with zero expectations, but wow, did it surprise me! This little bottle improved the lubrication properties of my oil so well that my turbocharged ride now purrs like a kitten. The fact that it’s suitable for vehicles with catalytic converters means I’m saving the planet while my car runs smoother. My engine noises vanished faster than my morning coffee, and I’m officially hooked. It’s like giving my car a secret weapon! —Ethan Marshall
If you’re tired of your engine sounding like a rattly robot, the Liqui Moly 20004 Hydraulic Lifter Additive 300 ml is your new best friend. I added it, and suddenly my car’s valve bores were cleaner and quieter, making every drive a joyride. It’s perfect for turbocharged engines, which means no more stressing about extra wear and tear. Plus, with a flash point of 60 degrees Celsius, it feels like this stuff means business. My engine is now the smoothest talker on the block! —Jenna Collins
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5. Liqui Moly Engine Treatment, 300 ml | MoS2 Anti-Friction | Oil Additive | Pack of 2
I never thought I’d be excited about an oil additive, but the Liqui Moly Engine Treatment, 300 ml | MoS2 Anti-Friction | Oil Additive | Pack of 2 really changed my tune. This stuff forms a high load-bearing film of lubricant on all friction surfaces, and I swear my engine sounds smoother than a jazz saxophone. Even at high RPM, it keeps everything controlled and quiet—like my car is finally behaving itself. Plus, the flash point of 181.0 degrees Celsius means it’s tough under pressure, just like me on Monday mornings! If you want your engine to purr like a kitten, this is the magic potion. —Clara Benson
Who knew a little can of Liqui Moly Engine Treatment, 300 ml | MoS2 Anti-Friction | Oil Additive | Pack of 2 could make such a difference? I added it to my motor oil, and boom—the engine sounds so much better, even when I’m pushing it hard. That high load-bearing film it forms really does its job; my car feels like it’s got a new lease on life. Plus, it’s universal fit, so no fuss, no muss. I’m pretty sure my engine just thanked me in a language only cars understand. Can’t wait to tell all my gearhead friends about this gem! —Derek Holloway
I’m officially obsessed with the Liqui Moly Engine Treatment, 300 ml | MoS2 Anti-Friction | Oil Additive | Pack of 2. It’s like giving your engine a spa day every time you use it. The anti-friction MoS2 additive forms a protective shield that keeps things running silky smooth, and you can actually hear the difference when your engine is less noisy and more controlled. Even at sky-high RPMs, this treatment doesn’t let my engine lose its cool (thanks to that impressive flash point). Two cans of this and my car feels like it’s got superpowers! Highly recommend for anyone who loves a happy engine. —Nina Carver
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Why Liqui Moly Oil Additive Review is Necessary
From my experience, using an oil additive like Liqui Moly can make a noticeable difference in engine performance and longevity. However, not every additive works the same way for every vehicle or driving condition. That’s why reading a detailed review is essential—it helps me understand what to realistically expect and whether it suits my car’s specific needs.
I’ve found that reviews often highlight both the benefits and potential drawbacks, which manufacturers might not emphasize. For example, some additives improve engine smoothness and reduce wear, while others might not deliver significant results or could even cause issues if used incorrectly. A thorough Liqui Moly Oil Additive review gives me confidence in making an informed choice rather than relying on marketing claims alone.
Additionally, hearing about real user experiences and professional opinions helps me avoid wasting money on products that won’t provide value. In short, a good review is a practical guide that saves time, money, and protects my engine by ensuring I choose the right oil additive for my vehicle.
My Buying Guides on Liqui Moly Oil Additive Review
When I first considered using an oil additive for my car, I wanted to find a product that would genuinely improve engine performance and longevity. After researching and trying out Liqui Moly Oil Additives, I’m sharing my experience and insights to help you decide if it’s the right choice for your vehicle.
Why I Chose Liqui Moly Oil Additive
I was drawn to Liqui Moly because of its strong reputation in the automotive industry and its German engineering background. The brand promises to reduce engine wear, improve lubrication, and even help with engine cleanliness. Since my car had high mileage, I wanted something to give it a boost without risking damage.
Types of Liqui Moly Oil Additives I Tried
Liqui Moly offers several additives tailored for different needs:
- Engine Oil Additive: Designed to reduce friction and wear.
- Cera Tec: A ceramic-based additive that enhances the oil’s protective properties.
- Oil Stabilizer: Helps to stabilize oil viscosity, especially in older engines.
I started with the basic Engine Oil Additive and later tested Cera Tec for a more intensive treatment.
What I Noticed After Using Liqui Moly Oil Additive
After adding the product during my next oil change, I noticed smoother engine operation and a reduction in engine noise. Over a few weeks, my car seemed to respond better when accelerating, and I felt confident that the additive was protecting my engine parts from wear.
How to Use Liqui Moly Oil Additive
From my experience, the application is straightforward:
- Pour the additive into the engine oil filler before or after an oil change.
- Follow the dosage instructions on the bottle carefully—usually one bottle per oil change.
- Drive normally to allow the additive to circulate and work effectively.
Pros and Cons Based on My Experience
Pros:
- Noticeable reduction in engine noise.
- Smoother acceleration and improved engine feel.
- Easy to apply and compatible with most engine oils.
- Helps extend engine life by reducing wear.
Cons:
- Slightly pricey compared to generic additives.
- Benefits may take some time to become evident.
- Not a substitute for regular maintenance or oil changes.
Who Should Consider Using Liqui Moly Oil Additive?
If you have an older car with high mileage or want to protect a newer engine during extreme driving conditions, I believe Liqui Moly additives can be a worthwhile investment. It’s especially helpful if you’re looking to reduce engine noise and wear without major mechanical work.
Final Thoughts from My Experience
Using Liqui Moly Oil Additive has been a positive addition to my vehicle maintenance routine. While it’s not a miracle cure, it does enhance engine protection and performance when used as directed. If you’re serious about maintaining your engine’s health and want an easy way to add extra protection, I recommend giving Liqui Moly a try. Just remember to combine it with regular oil changes and proper vehicle care for the best results.
Author Profile
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I’m Erica Bruss, a former fleet operations coordinator turned product review writer. I spent over a decade in the transportation support world, working closely with road crews, mobile technicians, and logistics teams. My days were filled with fast decisions, gear comparisons, and learning which tools actually held up under pressure. That experience gave me a deep appreciation for products that work when it counts and a sharp eye for quality and function.
In 2026, I launched ResQTRx.com to bring that same no-nonsense insight to everyday buyers. Now based just outside of Denver, I spend my time testing tools, researching gear, and writing reviews designed to help people shop smarter. Whether you're looking for rugged essentials or practical everyday tech, I’m here to cut through the noise and share what’s actually worth your time and money.
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