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Best Diesel Injector Cleaner UK

Fuel injectors work wonder on your car, but you might not understand it at first. When you are under a situation like me, you will understand the importance of using a fuel injector earlier. My father gifted me his car on my birthday, and I was so happy I decided to call my friends to check it. They did, but guess what; I could not start the car even though the fuel tank was full! I made a joke of myself on that day and decided that I will go to the root of this problem so that it never repeats ever.

Like myself, many others face such problems, and for this, the car’s fuel system is to be blamed. Multiple fuel injectors are present in the fuel system, and they do all the work of supplying the engine with petrol or diesel. After prolonged use, the fuel injectors might get clogged due to the buildup of debris, dirt, and carbon emission. When this happens, the fuel injectors become incapable of supplying the car’s engine’s right amount.

Therefore, it is because of this that I struggled with acceleration when needed despite refilling my car. So how can you prevent this from happening so that you don’t end up making a fool of yourself as I did? All you have to do is choose the best diesel injector cleaner and clean the fuel injectors to prevent diesel contamination.

But how would you know which fuel injector cleaner is suitable for your vehicle? We have compiled a list of the best fuel injector cleaners available in the UK and the features, pros, and cons. So before you head out to buy fuel injector cleaner for your vehicle, refer to this article to make a wise decision.

Top 10 Diesel Injector Cleaner UK

1. Hydra Power Blasting Diesel Injector Cleaner

Hydra’s USP of this injector cleaner is that it also serves the purpose as a fuel stabilizer. The product comes in a handy jar and is super easy to use, thanks to the injector straw attached to it. The cleaning capabilities are fantastic, but apart from it also improves your vehicle’s overall performance by raising the octane points.


  • The product comes with an injector straw and measuring cup to enable easy application.
  • Comprises of octane booster, which offers new life in your car.
  • Eliminates black smoke emission almost instantly after using it for 2-3 times.
  • Eases the process of starting and accelerating vehicles.
  • Increases the smoothness of the engine, thus improving the gas mileage as well.
  • Disperses water droplets stuck in the engine parts.
  • One bottle will last for up to 375 liters of diesel.
  • Thoroughly cleans up emissions from the exhaust system.
  • Protects the engine from corrosion.
  • Budget-friendly diesel injector cleaner.
  • Strong and foul-smelling.
  • The shelf life is of 2 years only.

2. Catalytic Fuel Injector Cleaner

One of the most effective injector cleaners of all time has earned an excellent reputation all these years. Due to its catalytic properties, it claims to improve your engine performance by at least 30%. Furthermore, it lives up to its promise of improving engine efficiency in severely clogged vehicles. The brand recommends you clean your vehicle with this cleaner once every three months if your vehicle is old.


  • It is perfect for all diesel, petrol, and hybrid engines.
  • It can remove traces of carbon, gum, resin from the fuel system, and the oxygen sensor probe.
  • It also improves the gas mileage after dissolving all the dirt.
  • After cleaning just once, the mileage will start peaking.
  • It also reduces the formation of harmful carbon buildup in the injectors.
  • The cleaner protects and maintains the catalytic converters.
  • Decreases the chances of formation of the DPF or the diesel particulate filtrate.
  • Suitable for family cars, light, and heavy commercial vehicles.
  • Very useful for engines with completely clogged injectors.
  • Extends the life of the exhaust system.
  • Restores the performance of old vehicles.
  • It can dissolve any buildup.
  • No fuel additives are present in it.
  • Might not bring in improvements in some cars.

3. Stanadyne Premium Diesel Fuel Additive Cleaner

Stanadyne is also the manufacturer of fuel injectors, so you would assume that they would know best about how to care for their product. After using this cleaner to clean your exhaust engine and fuel system, you might be stunned to feel and see the improvements in terms of your vehicle’s performance. You will also find it increasing the horsepower of your engine alongside maintaining fuel efficiency.


  • It provides one tank feature, which means you can clean the entire system with the cleaner.
  • You only need to use it 5-6 times a year to improve the mileage of your vehicle.
  • Increases the life of your fuel system by lubricating it.
  • It is also useful in reducing the stuttering engine noises, which is common in old vehicles.
  • The cleaner dramatically prevents corrosion of your engine parts.
  • Cleaner manufactured by fuel injector maker.
  • Eliminates the emission of black smoke.
  • Lengthens the life of engines.
  • Consists of cetane, which enable in better and smoother mileage.
  • The solution is considered to be hazardous.
  • Might not improve horsepower in all vehicles.

4. Liqui Moly Diesel Purge

Many car owners swear by the performance of this diesel purge because it is superb in cleaning your car’s entire fuel system. The cleaner is brought to you by Liqui Molly, which is pretty popular in the segment of car cleaners and lubricants. Once you start cleaning the fuel injectors when needed, you would find your engine’s horsepower increases. The best thing about this cleaner is that it magically dissolves dirt within seconds.


  • Improves the optimal performance of your exhaust system and fuel system.
  • The formula is super strong and effective in removing the buildup of dust and debris.
  • Increases the fuel efficiency of engines, even of cars that are decades old.
  • Useful in cleaning the carbon and dust particles of the injectors thoroughly.
  • Enables smooth acceleration and running of old vehicles.

  • Budget-friendly.
  • Super easy to use, and a little amount is required.
  • Reduces smoke emission from the nozzles.
  • Restores power to the vehicles instantly.
  • The formula is tested to be hazardous.
  • It cannot be shipped via airways.

5. Absolute Fuel System Cleaner UK

If you have not yet used any diesel injector cleaner and want to try a cost-effective one, then this one by Redex is your perfect match. Redex has been making fuel additives and vehicle cleaners for almost a century now, so its offerings are pretty trustworthy. So, it can even wake up your antique car so that it runs around smoothly and steadily, surprising you completely! But it would be best if you did not doubt its efficiency based upon its low cost because it does an extraordinary job of sweeping all the dirt away from the injectors.


  • The cleaner contains some high-quality fuel additives to enhance your engine performance.
  • It manages to clean even hard carbon buildup of a few years and leaves no trace of it.
  • Increases the life spans of your fuel and exhaust systems.
  • It is best suited for all vehicles having diesel and hybrid engines.
  • It comes with a detailed instruction manual, and using it does not involve any hassles.
  • It reduces annoying noises from your engine.

  • Extremely cost-effective cleaner.
  • Diesel additives offer power to the engines.
  • A single bottle lasts long.
  • Enables fuel-efficiency and better mileage.
  • It might not make noticeable changes in every car.
  • A rare occurrence of worsening mileage.

6. Secret Diesel Injector Cleaner UK

With prolonged use, dirt and water can get stuck inside your vehicle’s fuel injectors, thus weakening your vehicle’s overall mileage. If you can relate to this scenario, hurry up because you only need a dash of Hot Shot’s Secret diesel injector cleaner to end all your woes! If you have also been worrying about your car’s increased fuel consumption over the last few months, then dance in joy because this cleaner will put an end to this worry as well.


  • The effective formula wipes out all traces of dirt, carbon buildup, and dust from the injectors.
  • The black smoke emission will be reduced significantly.
  • Engine performance will boost up after getting a new life from the thorough cleanup.
  • Fuel consumption of your vehicle will drop noticeably.
  • The cleaner facilitates the restoration of the throttle.
  • Enhances the lubrication of your engine and exhaust system.
  • An all-in-one cleaner for engine parts.
  • It can even disperse the moisture accumulated in the injectors.
  • Improves the cold starting of vehicles.
  • It also consists of a cetane booster to maximize the cleaning process.
  • The foul odor of the cleaner.
  • Few users complained about injector failures.

7. Fuel Treatment Injector Cleaner

Lucas is a pretty big name because of its magical solutions when it comes to products like injector cleaners and lubricants. Although the cleaning liquids’ formula is potent, they are not hazardous, so you are not at risk for developing issues while using them in your vehicle. After using the cleaner only once or twice on your fuel system, the brand claims that you would notice improvements in the mileage. The fuel treatments work its wonders by cleaning away traces of carbon and smoke buildup on every part of the fuel system.


  • To allow the engine to deliver excellent performance, the cleaner offers a blend of fuel additives and silky oils to maximize the cleaning and lubrication process.
  • It filters out the dirt from injectors and carburettors to restore power to the engines.
  • The cleaning liquid shows extraordinary performance even in old and worn out engines.
  • It eliminates the traces of carbon deposits and prevents the emission of black smoke.
  • Users can clean internal parts of the engine like valve and pistons with the Lucas fuel treatment liquid.
  • You will good value for the money you spend on buying it.
  • Increases the octane rate up to a few notches.
  • Enables smooth and quiet driving.
  • Prevents wear and tear of engine parts.
  • Might not work for heavy-duty vehicles.
  • Claims of some users of reduction in the gas mileage.

8. Syprin Diesel Additive Cleaner

Are you noticing black smoke emanating from your car’s rear, followed by a reduced mileage? Well, there is no need to worry because this cleaner from SYPRIN is going to solve your problem. Furthermore, if you are struggling to start your vehicle during the winters, this product will assist you. Once you start using it in your car, you will be able to see that the mileage has improved considerably as the cleaner has thoroughly rinsed dirt and debris from your fuel system.


  • You can use it to clean other components of your engine to restore power in it.
  • Safeguards the engine from corrosion and similar other issues arising from prolonged usage of the vehicle.
  • Reduces black smoke emission considerably only after a few usages.
  • The formula is eco-friendly, and thus it does not give out harmful gases while you are using it.
  • It increases the life of the engine and ensures less fuel consumption.
  • Great value for money.
  • It can be used for pumps, hoses, and nozzles of engines.
  • Turbo-tested high-quality additive formula.
  • Excellent lubrication.
  • Some inconsistencies were found in performance.
  • Might not improve mileage in some vehicles.

9. Cetane Boosting Diesel Injector Cleaner

If you can find dust and debris deposits inside and outside the fuel injectors, you need this injector cleaner named Diesel Kleen by the brand Power Service. The cleaning liquid works amazingly to bring out to the best in your car’s engine. The best part is the cleaner has lubricating properties, and therefore when you apply it on your fuel injectors. You would find your car consuming less fuel to function smoothly.


  • It allows you to easily cold start your vehicle even during lower temperatures.
  • The brands claim that this cleaner can cut down the fuel consumption of your car by 8%.
  • Diesel Kleen is perfect for all cars, both old and new.
  • The ignition quality of fuel of vehicles will improve noticeably because of the octane booster added in it.
  • Improves the lubrication of various components of your fuel system like regulators and pumps.
  • Adds flow to the engine by removing traces of dust and debris and enables fuel economy.
  • Compatible with all forms of fuel, even biodiesel.
  • Reduces the corrosion of the engine components.
  • Cetane makes the engine more powerful.
  • A cost-effective solution.
  • Might not be compatible with heavy-duty vehicles.
  • It might not work if the engine consists of pre-date LSD fuel.

10. Professional Diesel Injector Cleaner

If your engine is not generating enough power even after using diesel lubricants, you need this beast! So, this injector cleaner by Archoil is heavy-duty by nature, which is why it can clean up all the massive deposits from your engine. The liquid penetrates all the parts of your engine, including the DPF and turbo, to sweep off varnish and carbon lacquers.


  • It can clean off any buildup in and around the injectors.
  • Ease the starting of vehicles and brings them into a smooth motion.
  • Restores engine performance by straining out buildup in critical emission systems.
  • The powerful solution thoroughly sweeps away the traces of the deposits molecule by molecule.
  • Sets the diesel particulate filter generation into action.
  • This cleaner brings back the turbo operation of your engine.
  • Reliable and effective performance.
  • Excellent heavy-duty diesel injector cleaner.
  • Eliminates carbon, varnish, etc.
  • Cleans DPF and turbo of vehicles.
  • It is quite expensive.
  • Might not bring in improvements in gas mileage.

Diesel Injector Cleaner UK Guide

After reading this detailed review about the best diesel injector cleaners of the UK, you should check the answers to these commonly asked questions regarding fuel injector cleaners. Go through these, and all your doubts regarding injector cleaners will be cleared once and for all!

Do you need a fuel injector cleaner for your new car?

Using fuel injector cleaners just after buying your car would not make much sense to most. However, some cleaners are specifically formulated for the injectors of new cars to prevent the buildup of dirt in the first place. So, to keep your injectors clean and the health of your engine intact, you can start using it on your fuel injectors.

What is a fuel injector cleaner?

Fuel-Injector cleaner helps to prevent hydrocarbon and other destructive deposits from being built up. They also contribute to the preservation of safe injections of gasoline.

What are the signs that your car needs a fuel injector?

If your car has aged gracefully, but recently you have noticed black exhaust fumes or engine noises, then the time to use fuel injectors have arrived. Furthermore, if you are having trouble starting your car or getting the right acceleration from it, then it’s high time you start looking for a fuel injector cleaner.

How frequently should you use a fuel injector?

As mentioned above, ideally, you should use fuel injectors before you even start facing any engine problems. Every product comes with the guidelines of the frequency of usage that you should abide by. If you cannot find this info in the instruction leaflet, then you do a deep cleansing of the engine twice every year or after travelling 30,000 miles or more.

How do injector cleaners work?

When you pour the liquid in the fuel tank, it mixes with the fuel, and then the fuel pumps send it to the fuel rail followed by the injectors. Throughout the way, it breaks down the big particles of the deposits into the tank. The exhaust system then flushes out the rest liquid. Also, while the cleaner travels through various engine components, it checks for signs of corrosion and mends it.

Fuel Injector Explained

Should you use fuel additives to intensify the action of fuel injector cleaners?

Yes, it is true that when fuel additives are used after cleansing the injectors, it stays clean for a longer time. So, if the fuel cleaner doesn’t come with additives, you can buy it separately. Using a fuel additive alongside a cleaner will decrease the fuel consumption, increases the lubrication of the injectors, and prevents any wear and tear of the engine parts.


After reading this article, you must have earned a fair idea about what you need to do before showing off your car drive. If you end up purchasing the best product for your vehicle and use it when required, your car would save you from embarrassment. Using all these products is super easy, but please wear safety gear while handling the product if you are buying chemically hazardous products. So, here are our recommendations to ease your shopping process:

Top 3 Choices in UK for Diesel System Cleaner

Make sure you take note of these product categories before the shopping to save yourself from confusion. Even if your car is relatively new, start using diesel injector cleaner to save maintenance costs in the future. Believe it or not, cleaners are a crucial part of any vehicle’s maintenance, and thus skipping on this might lead you in troubles. For instance, if you find your car not accelerating in the middle of the night in a quiet street, what will you do?

Don’t make room for such uncertainties, and start caring about your engine health from this day!

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