How to Use Diesel Fuel Injector Cleaner

How to Use Diesel Fuel Injector Cleaner

Going over the maintenance of your vehicle, whether it is a car, van, or truck, is a daunting task. Every little detail is important, like cleaning fuel. 

Cleaning your fuel system should be done regularly. Not doing so will deprive your car of attaining its maximum efficiency.

Fuel has the same level of importance as oil in your motor. The mileage is limited, and the car’s potential decreases when there’s contamination in your fuel line. 

If you don’t attend this matter for a long time, long-term damages would require you to spend a lot of money on repairs. 

What are Diesel Fuel Injector Cleaners?

They are composed of solvents that are directly mixed with the fuel that is supplied into the tank. You can’t expect that they’re 100% pour no matter how the fuel companies promote their products.

Additives could have been added in the storage process while they’re still at the fuel farm. The thick materials may stick to the gas tank and lower its capacity.

Injector cleaners get rid of the impurities caused by fuel during the combustion process. It works like detoxification in your vehicle that brings improvement.

What are the Components of the Diesel Fuel Injector Cleaner? 

Most diesel fuel injector cleaners available in the market have three primary chemical components. The following substances should be present to apply the right usage of this cleaner. 

1. Polyisobutylene

It is sometimes indicated as PIB, and you can find it in both diesel and fuel injector cleaner. It does the job of detergent as it scrapes off the deposit and residue that got stuck in the fuel lines and injector.

It is also capable of reducing engine knock problems, and it can fix misfiring.

2. Polyether Amine

The other term for this is PEA. It’s great at removing solid deposits. You must get rid of the deposit as it can impede the flow in lines and injector cleaners. 

It’s possible for this chemical as it can break down the molecules bonding the sediment deposits. When they are broken down into parts, they are expelled to the exhaust of the vehicle. 

They pass through combustion chambers and catalytic converters. It leaves no more traces behind as it completely disposes of solid deposits that may be caught in the fuel lines.

3. Polyisobutylene Amine

It is also called PIBA, and it functions like Polyisobutylene. The difference is that PIBA works efficiently with the presence of moisture. 

But it won’t be able to filter the combustion chamber. So it is used for maintenance and not as a build-up or deposit remover. 

What is Diesel Fuel Injector Cleaner For?

The contamination may dwell in the bottom of the fuel tank, fuel lines, or around the car’s fuel pressure regulator. You may wonder what the causes are.

1. Carbon

It is the mastermind of the harmful deposits found in your engine. The following explanation will tell you.

Engines can’t absorb all the energy forwarded by the fuel. When combustion doesn’t happen properly, some parts of fuel are left out.

The carbon deposit is the harmful fuel that did not combust in the right way. Leftovers remain in the fuel injectors.

So doing the cleaning process from time to time is not bad at all. But if you leave it as it is for years, you will be fastened in a very sticky situation.

2. Ethanol

It is a kind of renewable source of energy that was derived from plants. It was used to reduce the emission of carbon dioxide in the past.

It is also responsible for octane boosting. So vehicles had to comply with the terms of air quality.

This component is not used to lower fuel emissions in these modern days. It is instead a filler material that is utilized for pulling down the gas price.

New engines are formed to function with gasoline and ethanol mixture. But the older ones are not accustomed to this.

Alcohol can be harsh on some parts of the engine. Old engines will only experience a dislodge of carbon deposits.

It can emulsify and oxidize to build by-products that are not combustible. Thus, it results in the accumulation of deposits in the fuel injector. 

Steps in Using Injector Cleaners

Before you get moving, you should get the appropriate fuel injector for your vehicle first. Every engine has a specific cleaner that it supports.

You can do your homework or ask for help from an expert. If you have the right cleaner, you can execute these ways.

1. While putting all the cleaning ways in the application, you should have the instruction manual with you all the time.

2. Locate the fuel injectors in the car.

3. Remove the fuel pump found on the fuel injector. Learn the right way of disconnecting the pump and insertion of U tube from the manual.

4. The cleaning kit should be connected with a fuel pressure test port. The latter is located inside the fuel rail. 

The kit shows you how to connect things.

5. Remove the cover of the fuel tank. It’s a way to avoid the excessive pressure caused by debris cleaning.

6. Check if the fuel pump is off. It has to be turned off before proceeding to the next step.

7. When the fuel pump is off, let the engine run. The cycle will take 5 to 10 minutes. 

8. The cleaner will stop automatically once cleaning is done. 

9. When the engine is entirely clean, you can now remove your cleaner and detach the kit.

10. Close the cover of the fuel tank, and you can run your engine to make sure everything runs smoothly. 


Amount of Diesel Fuel Cleaner

The amount of diesel fuel cleaner should be based on the manufacturer’s instruction. It is responsible for designing the strength of its products. 

You have to check your tank’s size and go on with the instructions.

Frequency of Using Diesel Fuel Injector Cleaner

The frequency of use all depends on the car’s mileage. The appropriate use of a cleaner or maintenance product is every 10, 000 miles. 

What if I Don’t Use my Vehicle Often?

It’s still necessary to clean your diesel fuel injector even if you don’t use your vehicle often. A dormant car is more prone to build-up than the one that is always on the road.

You may notice more problems when you leave your car in the garage for a long time. You can sort out these problems by using a special storage cleaner.

It is specially made for vehicles that stayed in storage for 30 days or more. It makes your fuel and other kinds of gasoline to remain fresh for up to 2 years. 

Run the engine for 30 minutes after you injected the cleaner into the system. It’s a way to be assured that the cleaner reaches all the parts of the system.

It’s efficient maintenance for vehicles that you only use occasionally. 

Are There Other Possible Ways of Cleaning Diesel Fuel Injectors?

There are other ways, but they’re not as convenient and efficient as diesel fuel injector cleaner. It can handle the heaviest build-up there is. 

You can remove the injectors if the heavy build-up is present. Pressure should be used to force out the solvent.

However, you need to let the specialist company or mechanic do it for you. 


As you have been given knowledge by this article on how to use diesel fuel injector cleaner, the engine of your vehicle is up-to-par functional. Following the instructions will free you from engine breakdowns. 

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