---
product_id: 47969229
title: "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"
brand: "liqui moly"
price: "23898 Ft"
currency: HUF
in_stock: true
reviews_count: 10
category: "Liqui Moly"
url: https://www.desertcart.hu/products/47969229-cera-tec-3721-i-ceramic-wear-and-tear-protection-petrol
store_origin: HU
region: Hungary
---

# Improves fuel economy by up to 5% High-temp resilient ceramic compounds Reduces engine wear up to 50,000 km 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

**Brand:** liqui moly
**Price:** 23898 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock smoother rides & smarter savings with ceramic power!

## Quick Answers

- **What is this?** 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 by liqui moly
- **How much does it cost?** 23898 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/47969229-cera-tec-3721-i-ceramic-wear-and-tear-protection-petrol)

## Best For

- liqui moly enthusiasts

## Why This Product

- Trusted liqui moly brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fuel-Savvy Formula:** Boosts fuel efficiency by reducing friction, saving you money mile after mile.
- • **Long-Lasting Impact:** One 300 ml bottle treats up to 5L oil with effects lasting up to 50,000 km—engine care that keeps pace with your lifestyle.
- • **Universal Compatibility:** Seamlessly mixes with all petrol & diesel oils—perfect for every ride in your garage.
- • **Whisper-Quiet Performance:** Dramatically lowers engine noise for a smoother, more refined driving experience.
- • **Next-Level Engine Protection:** Forms a durable ceramic layer that drastically cuts metal-to-metal wear, extending engine life.

## Overview

LIQUI MOLY Cera Tec 3721 is a premium ceramic-based engine oil additive designed for petrol and diesel engines. It reduces friction and wear by forming a chemically bonded ceramic layer on engine components, enhancing performance, lowering fuel consumption by up to 5%, and cutting engine noise. Compatible with all commercial motor oils, one 300 ml bottle treats up to 5 liters of oil and delivers protection lasting up to 50,000 km. Ideal for professionals seeking long-term engine health and efficiency.

## Description

Product Description Cera Tec Ingredients oil

Review: LIQUI MOLY Cera Tec 3721 - LIQUI MOLY Cera Tec 3721 is a popular ceramic-based engine oil additive designed to provide wear and tear protection for both petrol and diesel engines. Here’s an in-depth review based on personal use, expert opinions, and user feedback: Composition and Purpose Cera Tec is formulated with ceramic compounds that are intended to reduce friction and wear inside the engine. The primary aim is to protect engine components, extend engine life, and improve overall engine performance. Key Claims and Benefits Wear Protection: Cera Tec is advertised to form a protective layer on metal surfaces within the engine, reducing metal-to-metal contact and, consequently, wear. Friction Reduction: By minimizing friction, Cera Tec aims to improve engine efficiency and potentially enhance fuel economy. Temperature Resistance: The ceramic particles in the additive are designed to withstand high temperatures, ensuring the protective layer remains effective even under extreme conditions. Noise Reduction: Users often report a reduction in engine noise, which can be a sign of reduced friction and smoother operation. Application and Use Cera Tec is compatible with all commercially available oils and can be used in both petrol and diesel engines. It’s typically added during an oil change, and one bottle is sufficient for up to 5 liters of engine oil. The additive is mixed with the engine oil and does not require any special procedures. Performance and Effectiveness Personal Use and User Feedback Wear and Tear: Many users report noticeable reductions in engine wear over extended periods. This is often observed in smoother engine performance and longevity. Fuel Economy: Some users have noticed slight improvements in fuel economy, though this benefit can vary based on driving conditions and engine type. Engine Noise: A significant number of users report quieter engine operation after using Cera Tec, suggesting effective friction reduction. Smooth Operation: Improved engine smoothness and responsiveness are commonly cited by users. Expert Opinions Automotive experts generally acknowledge that ceramic additives like Cera Tec can provide additional protection against wear, especially in high-stress or older engines. However, the benefits can sometimes be marginal if the engine is already in good condition and maintained with high-quality oil. Pros and Cons Pros: Enhanced Protection: Effective in reducing wear and extending engine life. Versatility: Suitable for both petrol and diesel engines and compatible with all types of engine oils. Improved Performance: Potential for smoother engine operation and noise reduction. Temperature Resilience: Maintains effectiveness under high-temperature conditions. Cons: Cost: Relatively more expensive than standard oil additives. Variable Results: Benefits like improved fuel economy may not be significant for all users. Over-reliance: Should not be seen as a substitute for regular maintenance and high-quality engine oil. Conclusion LIQUI MOLY Cera Tec 3721 generally lives up to its claims, providing an extra layer of protection for engine components. It is particularly beneficial for high-mileage or older engines and in conditions where engines are subjected to high stress. While the cost is higher compared to standard additives, the potential benefits in terms of wear reduction and smoother operation can justify the investment. However, it’s important to have realistic expectations and not to rely solely on additives for engine maintenance. Regular oil changes with high-quality oil and proper engine care remain essential.
Review: It is one of the few things you can buy that actually work - TLDR: Makes all the numbers better. Because there is less energy being wasted due to friction. Gives engine oil a physical ceramic lubricant and a chemically bonded layer to all metal parts the oil touches, making the engine run with less wear and friction, saving a bit of fuel and repair bills. I have heard a LIQUI MOLY representative say that if you change your oil with Cera Tec then you can go 30,000 miles before the next oil change......................Maybe technically it is possible, but please no one do this. Change your oil every year or more if you do loads of miles. Update: I have put this in my new petrol hybrid. Small put noticeable mpg improvement. Noise reduction is more noticeable, especially at low and cruising RPMs. As the engine cuts in and out constantly due to hybrid system, the chemically bonded layer of lubrication definitely helps with the advanced stop start system. As there is always a layer of lubrication before the oil circulates. Peace of mind knowing that I have additional protection in winter and with short journeys. I had to buy something to suck out some of the oil before I added Cera Tec. The service was due in 4 months so I didn't want to bother changing it myself. Service has to be done by a dealer to maintain warranty, but you can change it yourself between that if you want. I don't put enough miles on it to justify a 6 month oil change. When they change the oil at the dealer I will lose the ceramic physical part, but the chemically bonded layer will still be there and lasts about 30,000 miles. I will put MoS2 in when they change the oil to bring back the physical part. I put this in my older diesel and a petrol car. I also did an engine flush in both. For best results do it with an oil change, do it yourself or get it done for you and then add it. My car needs 4.5l of oil Cera Tec takes up 0.3 so I put in 4.2l of oil and then Cera Tec. Pro tip, when you have poured in the bottle, put some oil the bottle and shake to get the most out of the bottle and in your engine. How it works: There are 2 parts to it. The first is the "physical" lubricant element which is ceramic based hence the name. LIQUI MOLY also sell M0s2 which is a physical particulate lubricant, but Cera Tec is more advanced and modern. Think of the physical element as another layer of lubricity that rides in the oil film so you have 2 layers of protection between the metal parts of your engine. Castrol use liquid titanium as their physical part in their oil to improve lubrication but the concentrations are not as high as a dedicated oil additive. This part works as soon as you put it in with the oil. The ceramic physical part also helps a lot with reducing the heat degradation of the oil. Ceramic has great thermal properties and this will keep the oil film at its best for longer. The second and more important, unique and noticeable part is the "chemical element." Cera Tec has a chemical that will bond to the metal components of the engine that the oil touches, leaving a bonded layer of lubrication that will last up to 30,000 miles. Meaning you have 3 layers of lubrication in the engine instead of just the oil film which degrades over time and usage. The chemical part takes about 500 miles of driving to work as it needs heat and pressure to form on the metal surfaces. You can probably speed this up with a few motorway trips at mid RPMs. Once it has, you will notice the difference!!! Here is what I have noticed: 5mpg improvement. Most people find a 1-2% improvement in fuel economy which over 10,000 miles a year adds up! Cold starts sound a lot better. It helps reduce engine wear from short journeys. Power delivery is smoother and the car feels happier to rev. It has made my diesel so much quieter, I would even suggest buying this just to help with the "diesel tapping" sound. The engine just sounds better and is so much quieter at lower cruising revs. Engine start up is much smoother and quieter as there is a layer of lubrication at all times even before the oil starts to circulate. This may help prolong starter motors as well as it can crank the engine with less effort at cold start up. If you had a fast car that can take corners at speed your engine could experience temporary oil starvation which can cause a lot of damage, but with Cera Tec, you have that bonded layer of lubrication to save the engine in rare circumstances like this. When you change your oil next you will lose the physical ceramic lubricant, but the chemical layers lasts for 30,000 miles. So just buy LIQUI MOLY M0s2 for the 2 oil changes after Cera Tec to bring back the physical part. Remember don't buy Cera Tec for every oil change!!!! Or your wallet will hurt. Use Cera Tec once and then the next 2 oil changes should be done with M0s2 and then back to Cera Tec for the 4th. (If you change oil every 10,000 miles and or once a year) Change your oil just before winter and use Cera Tec, your engine will thank you. Remember it will take about 500 miles of driving to experience full benefits. Worth every penny.

## Features

- Contains Alkyl (C18-C28) toluenesulfonic acid, calcium salts, borated, Bernzenesulfonic acid, methyl-, mono-C20-24-branched alky derivs., calcium salts. May produce an allergic reaction.
- Harmful to aquatic life with long lasting effects.
- Safety data sheet available on request.
- Cera Tec is a high-tech ceramic wear protection and can be mixed with all commercially available oils. Cera Tec reduces friction and wear by using chemically and thermally extremely high-resilient ceramic compounds.
- Added to the lubricating oil of engines, compressors, pumps and transmissions. Excellent for use in passenger car and commercial vehicle engines (gasoline and diesel). Mixable with all commercially available motor oils.
- 300 ml will treat up to 5 liters of motor oil. Long-term effect up to 50,000 km.
- Not suitable for use with wet clutches!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001CZODH8 |
| Best Sellers Rank | 187 in Automotive ( See Top 100 in Automotive ) 2 in Engine Oil Additives |
| Brand Name | Liqui Moly |
| Country of Origin | Germany |
| Customer Reviews | 4.7 4.7 out of 5 stars (33,211) |
| Global Trade Identification Number | 04100420037214 |
| Item Form | Liquid |
| Item Type Name | Cera Tec |
| Item Weight | 0.3 Kilograms |
| Manufacturer | LIQUI MOLY |
| Model Number | 03721 |
| Number of Items | 1 |
| Part Number | P000017 |
| Recommended Uses For Product | Improve engine performance, reduce friction and reduce fuel consumption in petrol and diesel engines, suitable for manual transmission and automatic, but not for wet clutches |
| Specific Uses For Product | Improve engine performance, reduce friction and reduce fuel consumption in petrol diesel engines, suitable for automatic manual transmission, but not wet clutches |
| Unit Count | 300.0 millilitre(s) |

## Product Details

- **Brand:** Liqui Moly
- **Global Trade Identification Number:** 04100420037214
- **Item form:** Liquid
- **Item weight:** 0.3 Kilograms
- **Manufacturer:** LIQUI MOLY
- **Number of items:** 1
- **Unit count:** 300.0 millilitre(s)

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61OACV9yHkL.jpg)

## Questions & Answers

**Q: Will this be suitable for vw touran 1.9 tdi manual 2005 ?**
A: I have used it in my 2litre tdi Nissan X-Trail at 6 years old, and 50,000 miles on the clock. It reduced winter rattle from the engine, and the engine ran a little smoother than usual, especially at cold start in winter for the first 6-7 minutes. It has no damaged any components and 2 years later the engine is running smoothly as usual. I have bought a second bottle to use at the next oil change to help protect the engine from future wear. I did not witness a reduction in fuel consumption that some have experienced. My father has an X-Trail with an older engine, and he reported not seeing much difference after using the product. My brother has a petrol Honda Civic and claimed it did not have much visible effect for him either. So, I guess the effects are largely hidden on the interior surfaces of the engine, promoting a longer service life. My mechanic has seen the surface effect of the Ceratec in the engine ans says the effect is clearly visible and the surfaces are smoother to the fingertip touch. I believe this worth giving it a try.

**Q: Can I use Ceratec on automatic transmission diesel?**
A: Yes, providing you are planning to use it in the engine and not the gearbox you will be fine. If you're planning to use it as a gearbox additive, I'd contact Liqui Moly first to make sure its ok to do so.

**Q: Can i use ceratec on petrol/hibrid dngine?**
A: Hybrid car still running and charge battery using petrol engine so I can't see why not

**Q: Can I use it with oil additive and hydraulic additive in the same time ?**
A: Yes you can.
It also can be used with an engine flush.

See you tube videos. To see what takes place. Also. It will not work immediately..... Say 100 or 150 miles after adding it you will definitely see somthing is changing...

## Customer Reviews

### ⭐⭐⭐⭐⭐ LIQUI MOLY Cera Tec 3721
*by I***D on 15 July 2024*

LIQUI MOLY Cera Tec 3721 is a popular ceramic-based engine oil additive designed to provide wear and tear protection for both petrol and diesel engines. Here’s an in-depth review based on personal use, expert opinions, and user feedback: Composition and Purpose Cera Tec is formulated with ceramic compounds that are intended to reduce friction and wear inside the engine. The primary aim is to protect engine components, extend engine life, and improve overall engine performance. Key Claims and Benefits Wear Protection: Cera Tec is advertised to form a protective layer on metal surfaces within the engine, reducing metal-to-metal contact and, consequently, wear. Friction Reduction: By minimizing friction, Cera Tec aims to improve engine efficiency and potentially enhance fuel economy. Temperature Resistance: The ceramic particles in the additive are designed to withstand high temperatures, ensuring the protective layer remains effective even under extreme conditions. Noise Reduction: Users often report a reduction in engine noise, which can be a sign of reduced friction and smoother operation. Application and Use Cera Tec is compatible with all commercially available oils and can be used in both petrol and diesel engines. It’s typically added during an oil change, and one bottle is sufficient for up to 5 liters of engine oil. The additive is mixed with the engine oil and does not require any special procedures. Performance and Effectiveness Personal Use and User Feedback Wear and Tear: Many users report noticeable reductions in engine wear over extended periods. This is often observed in smoother engine performance and longevity. Fuel Economy: Some users have noticed slight improvements in fuel economy, though this benefit can vary based on driving conditions and engine type. Engine Noise: A significant number of users report quieter engine operation after using Cera Tec, suggesting effective friction reduction. Smooth Operation: Improved engine smoothness and responsiveness are commonly cited by users. Expert Opinions Automotive experts generally acknowledge that ceramic additives like Cera Tec can provide additional protection against wear, especially in high-stress or older engines. However, the benefits can sometimes be marginal if the engine is already in good condition and maintained with high-quality oil. Pros and Cons Pros: Enhanced Protection: Effective in reducing wear and extending engine life. Versatility: Suitable for both petrol and diesel engines and compatible with all types of engine oils. Improved Performance: Potential for smoother engine operation and noise reduction. Temperature Resilience: Maintains effectiveness under high-temperature conditions. Cons: Cost: Relatively more expensive than standard oil additives. Variable Results: Benefits like improved fuel economy may not be significant for all users. Over-reliance: Should not be seen as a substitute for regular maintenance and high-quality engine oil. Conclusion LIQUI MOLY Cera Tec 3721 generally lives up to its claims, providing an extra layer of protection for engine components. It is particularly beneficial for high-mileage or older engines and in conditions where engines are subjected to high stress. While the cost is higher compared to standard additives, the potential benefits in terms of wear reduction and smoother operation can justify the investment. However, it’s important to have realistic expectations and not to rely solely on additives for engine maintenance. Regular oil changes with high-quality oil and proper engine care remain essential.

### ⭐⭐⭐⭐⭐ It is one of the few things you can buy that actually work
*by A***M on 17 March 2024*

TLDR: Makes all the numbers better. Because there is less energy being wasted due to friction. Gives engine oil a physical ceramic lubricant and a chemically bonded layer to all metal parts the oil touches, making the engine run with less wear and friction, saving a bit of fuel and repair bills. I have heard a LIQUI MOLY representative say that if you change your oil with Cera Tec then you can go 30,000 miles before the next oil change......................Maybe technically it is possible, but please no one do this. Change your oil every year or more if you do loads of miles. Update: I have put this in my new petrol hybrid. Small put noticeable mpg improvement. Noise reduction is more noticeable, especially at low and cruising RPMs. As the engine cuts in and out constantly due to hybrid system, the chemically bonded layer of lubrication definitely helps with the advanced stop start system. As there is always a layer of lubrication before the oil circulates. Peace of mind knowing that I have additional protection in winter and with short journeys. I had to buy something to suck out some of the oil before I added Cera Tec. The service was due in 4 months so I didn't want to bother changing it myself. Service has to be done by a dealer to maintain warranty, but you can change it yourself between that if you want. I don't put enough miles on it to justify a 6 month oil change. When they change the oil at the dealer I will lose the ceramic physical part, but the chemically bonded layer will still be there and lasts about 30,000 miles. I will put MoS2 in when they change the oil to bring back the physical part. I put this in my older diesel and a petrol car. I also did an engine flush in both. For best results do it with an oil change, do it yourself or get it done for you and then add it. My car needs 4.5l of oil Cera Tec takes up 0.3 so I put in 4.2l of oil and then Cera Tec. Pro tip, when you have poured in the bottle, put some oil the bottle and shake to get the most out of the bottle and in your engine. How it works: There are 2 parts to it. The first is the "physical" lubricant element which is ceramic based hence the name. LIQUI MOLY also sell M0s2 which is a physical particulate lubricant, but Cera Tec is more advanced and modern. Think of the physical element as another layer of lubricity that rides in the oil film so you have 2 layers of protection between the metal parts of your engine. Castrol use liquid titanium as their physical part in their oil to improve lubrication but the concentrations are not as high as a dedicated oil additive. This part works as soon as you put it in with the oil. The ceramic physical part also helps a lot with reducing the heat degradation of the oil. Ceramic has great thermal properties and this will keep the oil film at its best for longer. The second and more important, unique and noticeable part is the "chemical element." Cera Tec has a chemical that will bond to the metal components of the engine that the oil touches, leaving a bonded layer of lubrication that will last up to 30,000 miles. Meaning you have 3 layers of lubrication in the engine instead of just the oil film which degrades over time and usage. The chemical part takes about 500 miles of driving to work as it needs heat and pressure to form on the metal surfaces. You can probably speed this up with a few motorway trips at mid RPMs. Once it has, you will notice the difference!!! Here is what I have noticed: 5mpg improvement. Most people find a 1-2% improvement in fuel economy which over 10,000 miles a year adds up! Cold starts sound a lot better. It helps reduce engine wear from short journeys. Power delivery is smoother and the car feels happier to rev. It has made my diesel so much quieter, I would even suggest buying this just to help with the "diesel tapping" sound. The engine just sounds better and is so much quieter at lower cruising revs. Engine start up is much smoother and quieter as there is a layer of lubrication at all times even before the oil starts to circulate. This may help prolong starter motors as well as it can crank the engine with less effort at cold start up. If you had a fast car that can take corners at speed your engine could experience temporary oil starvation which can cause a lot of damage, but with Cera Tec, you have that bonded layer of lubrication to save the engine in rare circumstances like this. When you change your oil next you will lose the physical ceramic lubricant, but the chemical layers lasts for 30,000 miles. So just buy LIQUI MOLY M0s2 for the 2 oil changes after Cera Tec to bring back the physical part. Remember don't buy Cera Tec for every oil change!!!! Or your wallet will hurt. Use Cera Tec once and then the next 2 oil changes should be done with M0s2 and then back to Cera Tec for the 4th. (If you change oil every 10,000 miles and or once a year) Change your oil just before winter and use Cera Tec, your engine will thank you. Remember it will take about 500 miles of driving to experience full benefits. Worth every penny.

### ⭐⭐⭐⭐⭐ Excellent product which works well as advertised
*by C***H on 6 November 2025*

This is one of the few products that consistently works well for me. I've used it in multiple vehicles over several years, including two diesel cars and two petrol-hybrid engines, and it's had a positive impact on them all. Takes about few hundred miles for its impact to be fully noticeable. In both diesel cars, Idle became smoother and quieter, less hesitant and smoother acceleration and increased mpg. The effects seem to be even better on the Toyota hybrid engines. These engines go on and off a LOT of times as the system switches between battery power and engine. After application, engine seem more alert, switching on and off much for eagerly and easily. I don't think this is a wonder product by any means. It simply does what the manufacturer claims it will do. It's not going to cure a neglected engine. It will supplement a well looked after car. It helps decrease friction between metal parts in the engine. Imagine lubing door hinges. Will be buying again.

## Frequently Bought Together

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-22*