12 Best Fuel Injector Cleaners for Gasoline and Diesel Engine
Owning a car is easy but maintaining it is difficult. When the car is driven too much, it becomes important to figure out what the problems are and which need to be fixed as soon as possible.
As the major problem every car faces are the engine issues. With every passing day, the fuel engine loses its smoothness and creates problems while driving. If you notice this issue, it’s the time to buy a fuel injector cleaner to maintain your engine system.
The fuel injectors are built to take the performance of your car engine to a whole new level. Since it is important to clean your fuel injectors on regular basis, they help in cleaning and removing the carbon deposits.
A fuel injector increases mileage, deals with leaks in the nozzles of the fuel injectors, and improves the overall vehicle performance. It should be used every 1000 miles on an average to get improved results and rest depends on the type of product you are using.
Here we bring you the list of best fuel injectors which contain special serums and high tech formulas to save your gas tanks from being damaged.
You can also read other product reviews such as fuel injector cleaning kit, carb cleaner.
Contents
- 12 Best Fuel Injector Cleaners - Reviews
- #1. Red Line Complete SI-1 Fuel System Cleaner
- #2. Chevron Techron Concentrate Plus Fuel System Cleaner
- #3. Lucas 10003 Upper Cylinder Fuel Injector Cleaner
- #4. BG 44K Fuel System Cleaner
- #5. Royal Purple Max-Clean Fuel System Cleaner
- #6. Liqui Moly 2007 Jectron Gasoline Fuel Injector Cleaner
- #7. Royal Purple 18000 Max Atomizer Fuel Injector Cleaner
- #8. STP Super Concentrated Fuel Injector Cleaner
- #9. Lucas Oil 10512 Deep Clean Fuel System Cleaner
- #10. Gumout 510013 High Mileage Fuel Injector Cleaner
- #11. STP Ultra 5-in-1 Fuel System Cleaner
- #12. Chevron Techron Fuel Injector Cleaner
- How to Buy the Best Fuel Injector Cleaners
- Conclusion
12 Best Fuel Injector Cleaners - Reviews
Image | Product Name | Compatible | Clean Up | Rating | Current Price |
|---|---|---|---|---|---|
 | 1. Red Line Complete SI-1 Fuel System Cleaner | Both Gasoline and Diesel | 30 gallons | 4.4 | |
 | 2. Chevron Techron Concentrate Plus Fuel Cleaner | Gasoline | N/A | 4.6 | |
 | 3. Lucas 10003 Upper Cylinder Fuel Injector Cleaner | Both Gasoline and Diesel | 100 gallons | 4.7 | |
 | 4. BG 44K Fuel System Cleaner | Gasoline | 20 gallons | 4.5 | |
 | 5. Royal Purple Max-Clean Fuel System Cleaner | Both Gasoline and Diesel | 20 gallons | 4.5 | |
 | 6. Liqui Moly 2007 Jectron Gasoline Fuel Injector Cleaner | Gasoline | 18 gallons | 4.4 | |
 | 7. Royal Purple 18000 Max Atomizer Fuel Injector Cleaner | Both Gasoline and Diesel | 10 gallons | 4.5 | |
 | 8. STP Super Concentrated Fuel Injector Cleaner | Gasoline | 21 gallons | 4.3 | |
 | 9. Lucas Oil 10512 Deep Clean Fuel System Cleaner | Gasoline | 30 gallons | 4.5 | |
 | 10. Gumout 510013 High Mileage Fuel Injector Cleaner | Gasoline | 21 gallons | 4.5 | |
 | 11. STP Ultra 5-in-1 Fuel System Cleaner | Gasoline | 35 gallons | 4.4 | |
 | 12. Chevron Techron Fuel Injector Cleaner | Gasoline | N/A | 4.5 |
Editor's Rating: 
(4.4 / 5)
- Compatible: Both Gasoline and Diesel
- Cleanup: 30 gallons
Red Line is the best engine cleaner additive which is made to take care of your vehicles. It is a concentrated and detergent based fuel additive that effectively cleans the valves, injectors, carburettors, and chamber deposits.
Since this injector cleaner is a concentrated blend of high temp and low temp detergents, you can expect good performance out of it.
Also, it contains synthetic upper cylinder lubricant which is safe to use for your cars. It has the potential to clean nearly 100 percent in a single treatment so if you use it frequently, it will deliver excellent results.
Moreover, this fuel injector cleaner is a perfect choice as it reduces need for octane by up to two points and one bottle keeps the vehicle in good shape.
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Editor's Rating: 
(4.6 / 5)
- Compatible: Gasoline
- Cleanup: N/A
Meet Chevron Techron which has been manufactured to clean and protect the entire fuel system. This one is capable of dealing with carburettors, intake valves, fuel injectors and combustion chambers.
Also, this system cleaner is an effective solution which fulfils all your older and modern engine needs. Since it cleans deposits, it also increases the mileage.
It restores lost fuel economy, lost power and fuel gauge sensor operation to give excellent performance. Even the tiniest of deposits are removed with this cleaner.
Moreover, this cleaner system improves cold start problem and fuel stability for up to one year. As it reduces engine surge, rough idle, spark plus fouling and hesitation, it works at its best.
It is helpful in remove impurities from the car fuel system by eliminating harmful carbon deposits from engine parts. Use this cleaner for motorcycles, boats, water craft, dirt bikes, RVs, ATVs and lawn care etc.
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Editor's Rating: 
(4.7 / 5)
- Compatible: Both Gasoline and Diesel
- Cleanup: 100 gallons
Lucas is the best rated fuel injector cleaner which is good for both diesel and gasoline engines. It is an amazing addition to your cleaner collection as it works well for carburettors as well as fuel injectors.
Also, this cleaner gives your fuel system everything in right quantity to keep it up and running.
With a blend of super slick oils and additives containing high detergent, this fuel cleaner makes the engine operate efficiently. It burns the fuel properly so the consumption is less and power increases.
Plus, if you are concerned about passing smog tests, this cleaner is the right pick. Since it is used in vehicles requiring leaded fuel, it takes care of harmful emissions as well.
Other than that, it is effective in neutralizing the harmful effects caused by low sulphur diesel fuel. See your car engine perform brilliantly.
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Editor's Rating: 
(4.5 / 5)
- Compatible: Gasoline
- Cleanup: 20 gallons
BG 44K brings you this best fuel system cleaner which cleans the entire fuel system quickly and efficiently. This product is not to miss as it is superb to restore gas mileage.
Moreover, this fuel system is an effective cleaner when it comes to ports, combustion chambers, fuel injectors and intake valves etc.
Since it delivers excellent performance, you will be surprised by the way how it removes upper engine deposits. As it is known to restore performance of the gas tank, you will get enhanced results.
Also, this cleaner increases power output as well as reduces problems like stumble, stalling, engine surge, power loss and hesitation. It works well with alcohol blended fuels and common fuel additives.
This product improves driveability and delivers quick clean up of corrosive deposits present in the fuel sending unit and coked fuel injectors. It is alcohol free and oxygen sensor safe.
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Editor's Rating: (4.5 / 5)
- Compatible: Both Gasoline and Diesel
- Cleanup: 20 gallons
Meet Royal Purple, best engine cleaner additive as it works both for gasoline and diesel engines. This cleaner is well known to maximize the performance of your fuel system.
It enhances fuel economy whilst restoring horsepower of the vehicle. Also, it contains high performance synthetic ingredients to clean the entire fuel system in order to deliver exceptional results.
Moreover, this product deeply penetrates into the fuel system to effectively clean the injectors, combustion chambers, intake valves and carburettors.
Plus, the deposit related issues in the engine are properly dealt as it takes care of engine knocking and pinging. While it meets EPA/CARB compliance standards, you need not worry about the performance.
If you want to use it for both 4 cycle and 2 cycle engines, you can use and it will not harm vehicle emission equipment. It will provide superior corrosion reduction while stabilizing fuel in storage and off-season.
Read More: 10 Best Fuel Stabilizers
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Editor's Rating: (4.4 / 5)
- Compatible: Gasoline
- Cleanup: 18 gallons
Liqui Moly is a good fuel injector cleaner which enjoys a good rating by the customers and the price is also under the budget.
This cleaner makes sure to remove carbon deposits, and clean fuel pipe, inlet valves, fuel distributors, injection valve deposits efficiently.
As you may know, it is good in cleaning contaminated petrol injection systems to offer effortless starting, low pollution, smoother idling, no lean surging, good throttle response and environment friendly combustion.
Moreover, it is helpful in restoring the engine to its original performance by promoting accurate injector dosing and fuel atomization. The fuel consumption is reduced and if you have engine with catalytic convertor, this is the right product.
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Editor's Rating: (4.5 / 5)
- Compatible: Both Gasoline and Diesel
- Cleanup: 10 gallons
As we are moving ahead with our fuel injector cleaner review, this one from the house of Royal Purple is a good deal. This cleaner is suitable to both gasoline and diesel engines.
It is highly concentrated and fully synthetic to deliver high performance. It is effective in restoring fuel economy and maximizing horsepower.
Also, it is works wonders for the direct injection engines. If you want to clean clogged and coked injectors, this product is a right choice.
As the name says i.e. Max atomizer, this cleaner is loaded with highly concentrated polyether amine detergents to restore injector flow. Plus, it atomizes fuel and injector spray patterns.
Furthermore, this fuel cleaner is well known to enhance performance and power as well as promises easier starts. What’s more, it stabilizes ethanol which can cause harm to the engine.
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Editor's Rating: 
(4.3 / 5)
- Compatible: Gasoline
- Cleanup: 21 gallons
Meet this STP fuel injector cleaner which is made using concentrated detergents to offer high performance.
This fuel injector cleaner is compatible for gasoline engines and delivers good level of performance. It removes harmful deposits like gum, carbon and varnish on fuel injectors.
Moreover, it is helpful in unclogging dirty fuel injectors which further restore performance. It also restores acceleration and power while saving or optimizing gas consumption.
As you may know, lack of maintenance can lead to rough idling and hard starts, this fuel injector makes sure to deal with that appropriately.
Additionally, you can expect good results owing to the fact that it is made with jet fuel which is a high quality carrier of active ingredients.
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Editor's Rating: (4.5 / 5)
- Compatible: Gasoline
- Cleanup: 30 gallons
Lucas Oil brings this deep clean fuel cleaner to reduce harmful nitrous oxide emissions. This fuel cleaner is a good choice if you don’t have many requirements to keep the car engine running.
This one is a mild fuel cleaner that contains additive package and specific carrier fluid. It doesn’t have any type of kerosene, diesel fuel or other harmful substances that can hamper the performance of your engine.
Moreover, it eliminates engine knocking and pinging whilst preventing the need for higher octane fuel.
Also, it promises to deeply cleanse the combustion chamber and entire fuel system in order to lend great performance as well as increase mileage.
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Editor's Rating: (4.5 / 5)
- Compatible: Gasoline
- Cleanup: 21 gallons
Gumout brings you this high mileage fuel injector which has been made to increase air flow to increase engine power.
This fuel injector cleaner has been formulated to remove tough carbon deposits from the engines. You can expect good engine performance and fuel economy at an affordable price.
Moreover, it helps in easy start ups of cold engines while also improving throttle response. Use it in supercharged and turbocharged vehicles to avail maximum benefits.
Plus, it is perfect in improving gas mileage and decreasing hydrocarbon and carbon monoxide emissions. For best results, use it every 3000 miles.
This fuel injector cleaner prevents carbon buildup on intake valves, ports and fuel injectors in an efficient way. It also reduces engine vibration when the car is standing idle.
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Editor's Rating: (4.4 / 5)
- Compatible: Gasoline
- Cleanup: 35 gallons
This fuel system cleaner is a 5 in 1 cleaner which is manufactured using advanced cleaning technology. It makes sure to keep the engine running in good form and deliver good results.
Since it is formulated specially to save gas, restore peak performance and reduce friction by providing enough lubrication to the entire fuel system i.e. piston rings and cylinder walls, you will see it keeps fuel fresh even during storage.
Moreover, it contains 3 times better cleaning agents to remove harmful intake valve deposits. Plus, it prevents ethanol deposits that can cause harm to the engine and holds back corrosion.
As it is good to work with modern gasoline engines like hybrid, turbo and direct inject which includes boats, lawnmowers and motorcycles.
Grab it if you want to save gas and lower emissions as it deep cleanse the entire fuel system.
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Editor's Rating: (4.5 / 5)
- Compatible: Gasoline
- Cleanup: N/A
Last in my list is Chevron Techron which is compatible to gasoline engines. It is a fuel injector cleaner made to clean clogged injectors which further cause loss of power and hesitation.
Since this product helps restore lost fuel economy, it is also safe to use when it comes to keep the injectors clean of deposits.
Moreover, it cleans harmful deposits and dirty carburettors and fuel injected spark ignition engines. Use it every 1000 miles to get utmost performance.
The only downside to this cleaner is that it doesn’t perform for engine knocking, pinging and run on. But it is safe for oxygen sensors and catalytic converters.
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How to Buy the Best Fuel Injector Cleaners
While buying a fuel injector, all you need to determine is how efficient the cleaner is which you are going to invest in. As there are different types of car engines, you need to check your type to get the right fuel system cleaner.
Because a car is driven regularly, it needs special maintenance. For that, you need a cleaner that fits your car’s requirements, your budget and how easily it can be used. Here are few points to consider:
#1. Compatibility
By compatibility, we mean the fuel tank compatibility. If you own a diesel engine car, you need a fuel cleaner made for diesel tank and the same goes for gasoline engine.
To check which injector cleaner is compatible for your car, you can ask a regular mechanic. If you buy a gasoline fuel cleaner for your diesel engine, it will have adverse effects which you cannot even imagine.
So before you buy, know about your car’s engine, condition and how old it is because few fuel cleaners are not suitable for too old cars.
If your car is too old, you need a powerful cleaner as the mild one will not perform as you expect. It is because the carbon deposit is quite tough to remove in an old car as compared to the new car.
#2. Ease of use
The fuel cleaner must be easy to use. The bottle or can whatever it may be, it must be easy to open so that you can pour the cleaner in the fuel tank easily. It is to be mixed in the fuel tank i.e. gasoline or diesel engine so it should be quick to offer hassle free process.
#3. Budget
Your budget matters the most as there are different cleaners marked at different prices. You got to pick the one which is under your said budget.
Of course, you should not invest in a cheap cleaner and make sure to check the features. If it fulfils your requirements, you can go for that. Basically, the quality cleaners cost somewhere around $15 and as the features improves, the price goes up.
Also, it depends on how dirty your car’s fuel system is. If it has stubborn carbon deposits, a cheaply priced fuel cleaner or injector will do nothing good due to being non-powerful.
#4. Brand
Brand name is always significant. Whenever you buy any fuel cleaner or injector, never invest in an unknown or growing brand. As you don’t know if the product is good for your car, investing in such a product is not recommended.
Do check the authenticity, goodwill, reputation and testimonials of the particular brand before buying. Some brands focus on improving the fuel consumption while some claim to clean the fuel pipes to deliver a smooth ride.
Choosing the best fuel injection cleaner can be a little difficult if you are unaware of your requirements. Make a list first and then pick the brand which fulfils all your specifications, if not all then at least some.
Conclusion
As we have reached at the end of this best fuel injector review, now is the time to give you a quick recap of all what you have read above.
As the car fuel engine must be in a perfect shape to offer effortless driving, it should also be healthy enough to combat the carbon deposits accumulated on it.
Talking about the best injector, Lucas 10003 and Royal Purple Max Clean top the list because they both are economically priced and compatible for both gasoline and diesel engines.
The best thing about these injectors is they clean the entire fuel system with utmost ease and deliver outstanding performance without even bothering you for frequent repair shop visits. Happy shopping!