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Best Fuel Injector Cleaner (Review & Buying Guide)

Owning a car can be pretty tricky, especially when you notice that it is running differently. It can be tough to pin-point what exactly the problem is, and you do not want to have to spend hundreds and hundreds of dollars on something that might not even be the problem.

If you notice that your old vehicle is running harder and not as smoothly you should consider adding a fuel injector into your engine system. Choosing one of the best fuel injector cleaner can not only make your gas mileage performance go through the roof but can also prevent other issues that may be very expensive to repair.

An injector cleaner is used to clean your engine of deposits that can make it difficult for your vehicle to run correctly. Over time dirt and deposits build up inside of your engine, and the right amount of fuel does not make its way to the parts of the engine that need it most.

Top 10 Best Fuel Injector Cleaners

RankingsNamePrice and More Details
Royal Purple Max-Clean Fuel System Cleaner and StabilizerClick Here
Red Line Complete SI1 Fuel System Cleaner and StabilizerClick Here
Lucas LUC10013 10013 Fuel Treatment Click Here
Liqui Moly 2007 Jectron Gasoline Fuel Injection CleanerClick Here
BG 44K Fuel System Cleaner Power EnhancerClick Here
Chevron Techron Concentrate Plus Fuel System CleanerClick Here

1. Royal Purple Maxclean Fuel System Cleaning

Maxclean Fuel system additive injector cleanerThe Max Clean product from Royal Purple can improve your gas mileage performance by utilizing their state of the art technology to clean both the combustion chambers and the intake systems. This system cleaner product works on both gasoline and diesel engines, and it is known to increase your car’s horsepower by 2.6 percent on average.

When it comes to getting a good product that help improve the overall performance on your engine, Royal Purple Fuel Max Clean was designed to reduce knocking and pinging and to eliminate build-ups that produce adverse effects on your engine. Also, an advantage of this product is the fact that it can work with diesel fuels. Overall the best fuel injector cleaner on the market.

2. Red Line Complete SI1 Fuel System Cleaning

RedLine Complete Fuel injector cleanerWith a recommended one bottle per tank usage, the red lines fuel cleaner is one of the best and most potent when it comes to cleaning injectors and intake valves. With a proven 100 percent efficiency record, Red Line complete SI-1 reduces the need of adding an octane booster to improve gas performance.

Red Line SI1 system cleaner formula is also famous for off-road motorcycles, snowmobiles, and all-terrain vehicles. This product is a concentrate plus fuel system cleaner and blends that work in both low and high temperatures. Also, it is safe for continual use, and that is why we consider the red lines complete fuel cleaner one of our top picks.

3. Star Tron Enzyme Fuel Treatment Concentrate

Stabilizes fuel and boost gas mileage fuel injector cleanerThe Star Tron brand has an excellent product called Enzyme Concentrate that prevents ethanol fuel problems. If you are looking to improve fuel economy, then you should consider purchasing the Star Tron Enzyme.

This fuel injection cleaning product can treat up to 512 gallons of fuel, and it provides protection and performance for two years. It is a concentrate plus fuel system cleaner formula that reduces emissions and increases horsepower.


  • Prevents phase separation
  • Removes carbon buildups, and varnish
  • Rejuvenates the current state Fuel
  • Proven to stabilize and deep clean your gasoline fuel

4. Lucas Oil 10013 Injection System Cleaner

Lucas Oil Fuel Injector CleanerLucas Oil Fuel is available in one-gallon containers. You are sure to have this product for more than one use and will not have to buy another for at least a year. It is only compatible with diesel engines, locomotive engines, and off-road vehicles.

Lucas Fuel Treatment is best used for tractor-trailer trucks and other larger vehicles. It is a product made of a combination of oils and additives and does not contain any solvents.

Overall this makes the emissions from your careless harmful and clean for the environment. Lucas Fuel is a great product to use to pass a smog test. The pros of these products are that it comes in such a big container.

You get a bang for your buck with this injector cleaner. The cons are that, unfortunately, you can only use this product with diesel engines. So, unless you are a truck driver, you probably won’t be using this cleaner.

5. BG 44k Fuel System Cleaner

BG 44k Fuel injector cleanerThe BG 44k cleaner is well known for a quick restore of the gas mileage and engine performance. Also, it’s known for increasing the combustion quality, and it can treat around 20 gallons of gasoline for every 11oz of product.

If you are having problems with the intake valves, the BG 44K fuel injector cleaner is considered one of the top picks to clean the valves and combustion chambers quickly. Also, it reduces build-ups and problems such as power loss, engine surge, and hesitation.

The BG 44K contains no alcohol, so it is considered safe for O2 Sensor and catalytic converters. Overall on of the best value injector cleaner formula that can help improve gas mileage on diesel injectors.

6. Chevron 65740 Techron

Chevron Techron fuel injector cleanerChevron Techron Fuel is one of the top picks for your fuel injector cleaner needs. This bottle is available in a 20-ounce bottle. This injector is developed to clean, protect, and restore your entire fuel system.

The Chevron Techron concentrate plus fuel system can significantly improve lost fuel economy and help to make your fuel gauge sensor work more efficiently. It is supposed to have an effect for up to a year that can help with your acceleration and improve any rough idles you may be experiencing. It is suggested that you add this product to your engine during an oil change every 3,000 miles.

The pros of this product are that this is a concentrated solution so you should only have to use this product one time, instead of having to clean your engine two or three to get desired results. It is also convenient that it comes in a 20-ounce bottle so you can be sure it reaches all the parts of your engine. Other fuel injector cleaners are much cheaper.

7. Liqui Moly Fuel 2007 Jectron

LiquiMoly fuel injector cleanerThe Liqui Moly Fuel Cleaner is available in a 300-milliliter container that comes in a two pack. This gasoline fuel injection cleaner is developed to help with a car that has problems starting, have an inadequate throttle response, and, of course, help with fuel economy.

The container of this fuel injector comes with a funnel-like tip for easy application that makes it a great deal easier to add to your fuel system. This product works better in conjunction with catalytic converters.

The pros of this product are that it focuses a great deal on starting and throttle problems, and it can make Liqui Moly Jectron Fuel a much cheaper fix than going to a mechanic. An excellent feature of the product is its funnel-like tip that makes for easy pouring.

There is no need to worry about spilling and wasting this product. The cons of this product are that, although it comes with two containers, it is a small amount of fuel cleaner. You will most likely be having to get two of these packages to clean your system correctly. They try to make it seem as if you are getting more, when in fact you are getting less.

8. Sea Foam SF16 Motor Treatment

SeaFoam fuel injector cleaner for your carSea Foam SF16 is another very reliable fuel injector cleaner available, and it comes in a 16-ounce bottle and has a little more fuel injector available than some other products.

Sea Foam Motor Treatment has quite a reputation and is the fuel injector cleaner I find more people recommend than any other. This product is entirely petroleum based and is completely EPA certified. You can add Sea Foam to the carburetor of your car and have deposits liquefy and breakdown so that it can be cleaned out of your system.

The Pros of this product is that it is entirely petroleum based and is healthy for most engines. This product also has a good reputation, and I have personally witnessed the benefits of using Sea Foam. The size of the bottle is also another positive.

You should not have to purchase more than one bottle. It is also a one-time application, so many containers are not necessary to achieve higher engine performance. The price of the product is too hard to beat. The Cons of this product is that there is an awkward lid so that pouring can be a little confusing.

9. STP 78577 Super Concentrated

STP fuel injector cleaner for your carSTP 78577 Cleaner is available in a pack of two 6 ounce bottles. Unlike other fuel injector cleaners, this product is compatible with all gasoline engines.

STP 78577 Super Concentrated injector cleaner is a great product to have in your car in case of an emergency. This product works with any automobile, snowmobile, marine craft, and even scooters. Also, this fuel injector cleaner is made with a combination of different ingredients that require only one use to acquire higher fuel economy and engine smoothness.

The pros of this product are that it is compatible with any gasoline engine, so you don’t have to worry about getting the wrong cleaner. The cons of this product are that the containers are tiny for a pretty high price. You will most likely have to purchase more than one to get your entire engine clean.

Best Flue Injector Cleaner Buying Guide

Fuel injectors play an essential role in running your car because they are a bridge between a full tank of gas and the engine. Therefore, they are used every time you start your vehicle, and you should maintain/service them regularly.

Cleaning the fuel injectors of your automobile reduces the noise your car’s engine block produces, keeps your MPG accurate, reduce emission output, and eliminates motor chatter. It is essential to invest in a good fuel injector or hire the right cleaner to improve the overall performance of your car.

What is a fuel injector?

A fuel injector is used to inject fuel into the combustion chambers of an engine. In fact, a fuel injector ensures that the right amount of fuel gets to the engine in every cycle either when you rev the engine up or release the throttle. Initially, carburetors were used to inject fuel, but modern engines use fuel injectors because they are fuel efficient.

Do Fuel Injector Cleaners they work?

Fuel lines tend to get clogged up with extra fuel additives. Thus, making it essential to use fuel injector cleaners AKA (cylinder lubricant) occasionally. Below are some guidelines for fuel injector cleaning.

Purpose of  a Fuel Injector Cleaner

A fuel injector combines fuel and air, each differing according to its specific type of fuel. If your vehicle is getting low gas mileage, then chances are carbon buildups could be affecting the car’s performance. Potentially causing it to misfire or idle and not run smoothly.

Choosing Proper Fuel Injector Cleaner For Your Car

Fuel injector cleaners differ according to the make and model of your car or truck. Here are some pointers before buying:

Fuel Injector Cleaner Car Benefits

There are many benefits associated with using injector cleaning fuel. It thoroughly cleans fuel injectors while providing your vehicle with improved fuel stability. You are helping to remove the car oils additives from the upper cylinder and combustion chambers as well.

When appropriately used, the fuel injector cleaning fluid will effectively improve the running performance of your car — giving it a quicker throttle response as if fresh from the showroom floor. Not only are these cleaners safe and easy-to-use, but they’re affordably priced as well!

Main Components of a Fuel Injector Cleaner

Polyisobutene (PIB)

It is a homopolymer of 2-methylpropene which has basing rubber. Its production is done using catalytic polymerization, which has a high content of isoprene and isobutylene and is very pure. A greatly controlled process is of benefit as it helps in securing a narrower molecular distribution weight. It is mainly used in food additives, electrical insulation in cables and wires, plastic compounds, and in cosmetics.

Polyisobutylene Amine (PIBA)

It is a long time polyolefin produced on technical sale. The patent in Germany was filled in 1931 and after that published in 1937. Other patents later came into place. It is mostly being manufactured to inform of a block copolymer. Besides, it is common finding saturations present in the backbone. Thermoplastic elastomers are composing of outer blocks which are glassy and inner blocks which are rubbery.

Polyetherimide (PEA)

It is amino and made using primary amino group which is attached to the polyester backbone with its basement at ethylene oxide, propylene oxide, or by mixing both compounds. It is mainly used in epoxy, which is a curing agent. It is a colorless liquid and therefore ideal choice for decorative casting and coating business. Besides, its low viscosity liquid is essential for self-leveling and casting flooring business.

How to Clean a Fuel Injector

To clean your car’s fuel injector, you can either do it yourself or hire an experienced cleaner to do it for you. Here you can find a complete guide on how you can clean fuel injectors:

  1. Buy a fuel injector cleaning kit – visit an auto supply shop and buy a cleaning kit which basically should contain a fuel pressure gauge, a hose, and a container of injector cleaner.
  2. Locate the fuel injector – since different cars have different types of engines, the layout may differ. Therefore, you can check your instructor’s manual, read articles, or watch online videos to know where your car’s fuel injector is located.
  3. Disconnect the car’s fuel pump from the fuel injector – after detaching the fuel pump, you can use a fuel return line or a U tube to safely return the fuel that’s contained in the tank to the fuel tank. Take caution to keep any source of fire away to prevent fire outbreaks. Finally, you have to disconnect the pressure regulator vacuum line before proceeding to the next step.
  4. Connect the cleaning kit – using a manual, connect the kit to the fuel port, and then start the engine. Remember, there should be no traces of fuel in the injector because the cleaning fluid might be flammable and the cap of the fuel tank should be removed to prevent pressure build up.
  5. Reassemble the fuel lines – after cleaning is done, remove the kit and reassemble all the fuel lines. Ensure the components are installed correctly by testing or even driving your car for some minutes.

Before you start the engine, ensure the fuel pump is turned off and remember to check the fuel pressure using the kit’s pressure gauge to ensure that it matches the recommended pressure. The entire cleaning process should take 5-10 minutes for thorough cleaning. You should leave the engine to run on its own because it will eventually shut down on its own after the cleaner is used up.

Signs when you need to clean the fuel injectors:

  • Poor idle
  • Poor car performance
  • Engine failing to reach the full RPM
  • Engine detonation or knock
  • Increased consumption of fuel
  • Starting issues
  • Bucking or surging under different throttle loads

Benefits of Using an Injector Cleaner

Using an injector cleaner has the following advantages:

  • Reduces air pollution because your car’s engine will have fewer carbon deposits
  • You will have a better gas mileage thus saving money eventually
  • Increases the dependability of your vehicle because it will not breakdown often or have costly repairs
  • Prolongs the lifespan of your car’s engine
  • Your car’s engine has better performance because it has a clean fuel system

Tips on How to Use a Fuel Injector Cleaner

Before buying an injector cleaner, you need to research about the different types of injector cleaner so that you can make a perfect choice. Typically, injector cleaners can work on all engines, but there are specific cleaners which can work best in certain engines or cars. Therefore, researching and gathering useful information is essential before making a choice.

After buying an injector cleaner, reading the instructions is highly recommended to avoid making any mistakes. If you are informed, you cannot make costly mistakes or waste a lot of time. Finally, if you are not familiar with any of the steps of the injector cleaner, seeking help from a friend or a car expert is a better approach instead of relying on trial and error.

Go back to the beginning of the article if you need to check latest price of our recommended products. Products like the Chevron Techron 65740 work extremely good fuel injector cleaner for most car systems when they get a lot of carbon build ups. It is an aggressive formula that is known to be very effective among all other company competitors.


Cleaning your fuel injector cleaners can benefit your car, primarily if you use it combined with octane boosters. Check if the top picks brands like Red Lines, Royal Purple Fuel, and Sea Foam SF16 work with gasoline and diesel engines. These cleaners are excellent for keeping your intake valves, and intake systems clean.

You should also consider checking the head gasket sealer for a leak, or carbon build. Also, check your air filter, and spark plugs if you decide to go to a local auto car care. Most of these small issues can impact your engine performance. Cleaning your injectors can make a significant improvement to your engine and overall vehicle performance.

Keep in mind that if your car fuel consumption is considerable, then you should take proper action to use products like octane boosters or fuel injector cleaners to maximize your gas performance. Not only will you see an improvement according to your monthly gallons of fuel consumption, but also the best fuel injector cleaner will deeply clean the entire fuel system. Follow our links for availability and to check the price on Amazon.

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4 years ago

I am having problems with my fuel filter clogging up extremely fast on my 88 chevy suburban 350 1/2 ton with auto transmission. I changed filter this weekend and only got about 50 miles and it clogged again, needing renewal, I openened top of tank & it looks clean inside and fuel is very clean and clear. but when I change fuel filter, the fuel coming out of filter is cloudy white tinted – not clear. any ideas?

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