The Best Diesel Fuel Injector Cleaners

Fuel injector cleaners are a critical part of routine maintenance. By occasionally adding fuel injector cleaners to your car’s fuel system, you can greatly increase both the performance and the health of the vehicle’s engine.

The purpose of fuel injectors is to provide fuel to the engine. A car has numerous injectors, which spray fuel into the engine to create combustion. When those injectors get dirty, be it with dirt, dust, debris, or carbon build up, they’re incapable of doing their job properly. The engine will not get the proper amount of fuel, and it won’t function efficiently.

As a result, the performance of the vehicle will suffer. There won’t be a proper amount of power, and the car will be liable to stutter, hesitate, and struggle with acceleration. It may even experience issues with stalling and funny noises. In addition to that, the fuel efficiency will begin to suffer. The longer the contaminants are in the fuel system, the more damage they’ll cause, both to the system and the engine. This can result in costly repairs, as well as a lowered resale value.

As a result, it’s important to use fuel injector cleaners. Fuel injector cleaners help these things from occurring. And while many people think fuel injector cleaners are only for gasoline engines, that isn’t actually true; they’re even more important for diesel engines.

Ranking:Product: Overall Rating:
1BG 245 PREMIUM DIESEL FUEL SYSTEM CLEANER

BG 245 Premium Diesel Fuel System Cleaner
4.5 Stars (4.5 / 5)

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2
Liqui Moly 2005 Diesel Purge - 500 ml

Liqui Moly 2005 Diesel Purge
4.8 Stars (4.8 / 5)

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3Hot Shot's Secret P040432Z Diesel Extreme Clean and Boost - 32 fl. oz.

Hot Shot’s Secret Diesel Extreme Clean and Boost
4.3 Stars (4.3 / 5)

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4
Stanadyne Performance Diesel Injector Cleaner QTY of 4 - 8oz bottles #43562

Stanadyne Performance Diesel Injector Cleaner
4.5 Stars (4.5 / 5)

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5BG244 Diesel Fuel System Cleaner 11oz can

BG244 Diesel Fuel System Cleaner
4.3 Stars (4.3 / 5)

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6Royal Purple 11755 MAX TANE DIESEL 20 oz

Royal Purple Max Tane Diesel
4.0 Stars (4.0 / 5)

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7Lucas Oil 10013-PK4 Fuel Treatment - 1 Gallon (Pack of 4)

Lucas Fuel Treatment
4.6 Stars (4.6 / 5)

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The seven best diesel fuel injector cleaners

There are a few differences between fuel injector cleaners for gasoline engines and fuel injector cleaners for diesel engines. Some fuel injector cleaners can be used for either type of vehicle, while some are for one or the other. It’s important to only use diesel fuel injector cleaners for diesel vehicles. These are our seven favorite fuel injector cleaners for diesel engines.

BG 245 Premium Diesel Fuel System Cleaner 

BG 245 PREMIUM DIESEL FUEL SYSTEM CLEANER

BG is known for making some high quality additives. This diesel fuel system cleaner definitely lives up to the hype for the brand name, in our opinion.

This product not only cleans the fuel injectors, but the entire system in the diesel vehicle. It does a great job of not only dissolving and removing soft deposits and build ups, but hard deposits and build up as well.

Diesel engine can often have a difficult time starting up, especially in cold weather, and this fuel system cleaner helps improve that, and make it easier for a cold start to occur. Emissions are dramatically lowered, and it does a terrific job of improving driving feel and idling ability. This product is one of the best on the market for improving the power of a vehicle, which is highly important for diesel cars.

While reviews and descriptions of this product are close to flawless, that comes with a price. Most auto parts stores sell this product for a bit more money than other diesel fuel injector cleaners, so buyer beware.

Editor Rating: While this cleaner is nearly perfect, it is rather pricey, so we give it a rating of 4.5 stars.

You can buy the BG 245 Premium Diesel Fuel System Cleaner by clicking the button below:

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Liqui Moly 2005 Diesel Purge

Liqui Moly 2005 Diesel Purge - 500 ml

Liqui Moly is one of the most well-respected brands for injector cleaners. However, this product is far more than just a fuel injector cleaner; it’s called “diesel purge” for a system. Liqui Moly is a comprehensive product that helps clean the entire diesel system.

You can use it to actually purge the system, or you can run it through with the diesel fuel, as you do with most fuel injector cleaners. Either way, it works dynamically. We’ve had terrific experience with this product, and all the reviews suggest it’s about as good as it gets when it comes to cleaning diesel fuel systems. Injectors, filters, and pumps will all be cleaned to nearly new quality, while power and fuel mileage will be maximized.

We don’t say this often, but we can’t find anything bad to say about this product. If you want to clean out your diesel car’s fuel system, you can’t do better than this.

Editor Rating: As this product does a terrific job with the entirety of a diesel system, we give it a rating of 4.8 stars.

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Hot Shot’s Secret Diesel Extreme Clean and Boost

Hot Shot's Secret P040432Z Diesel Extreme Clean and Boost - 32 fl. oz.

In addition to having a great name, this product does wonders for most diesel engines. It does a terrific job of adding lubrication to the engine, which makes it an especially important product for people who go on long trips, as the added lubrication helps keep engine temperature down.

Most importantly, however, is that this product really cleans and improves the whole system. It not only cleans the diesel fuel injectors, but the fuel tank and fuel lines as well. It helps remove water that has developed in the system, and stabilizes the fuel. It even coats the fuel tank and fuel lines, which helps inhibit rust and corrosion for many miles, even after refueling. Add in a boost in power and mileage, and this diesel fuel injector cleaner is the total package.

If there’s a downside, it’s that many users haven’t noticed the increase in fuel mileage that you would expect from this product. And if you’re not getting that benefit, it can be a bit pricey to opt for this.

Editor Rating: This product does a quality job, but doesn’t have some of the benefits of other cleaners, so we give it a rating of 4.3 stars.

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Stanadyne Performance Diesel Injector Cleaner

Stanadyne Performance Diesel Injector Cleaner QTY of 4 - 8oz bottles #43562

This product has an interesting selling point. Stanadyne isn’t actually a fuel injector cleaner company; they’re a fuel injector and fuel pump manufacturer. They just happen to make a few cleaners for injectors. You would think that a fuel injector and pump company would have a pretty good idea as to what a fuel injector cleaner should look like, and you’d be absolutely right. Stanadyne knows what their parts require, and they’ve created a diesel fuel injector cleaner that provides it.

This product is well known for increasing engine performance, both in terms of specifications, and in terms of feel. It does a good job adding horsepower and maximizing fuel efficiency, but it’s even more noticeable for the reduced stuttering and dampened engine noises. It also dramatically reduces corrosion, and adds a good amount of lubrication to the engine.

There’s not much to dislike about this product, as it really does the job very well.

Editor Rating: Because this cleaner comes from a fuel injector manufacturer, and does a comprehensive job, we give it a rating of 4.5 stars.

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BG244 Diesel Fuel System Cleaner

BG244 Diesel Fuel System Cleaner 11oz can

BG is the only company that appears on our list twice, and that’s not a coincidence. They make great quality fuel injectors for diesel engines. This particular product does a really good job of removing carbon deposits from a vehicle’s fuel system, not only in the fuel tank, injectors, valves, and filters, but in the combustion chambers as well. This is also one of the better diesel fuel system cleaners in terms of restoring the maximum horsepower and fuel mileage to the vehicle.

This is a go-to product for anyone experiencing a variety of issues with their diesel fuel system. Even if you’re not quite sure what’s causing the issue, this product will usually help resolve it. However, it doesn’t always have as big of an impact on driving feel as some products on this list, so if you’re looking to restore the smoothness to your diesel engine, there may be better options.

Editor Rating: This is a terrific all-around cleaner, but not the best diesel cleaner, so we give it a rating of 4.3 stars.

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Royal Purple Max Tane Diesel

Royal Purple 11755 MAX TANE DIESEL 20 oz

This is a very strong all-around product. It doesn’t do any one thing brilliantly, but it offers just about everything that you would want with a diesel fuel injector cleaner. It doesn’t increase horsepower or fuel efficiency as much as some other products, but it definitely increases them a substantial amount. It does a very nice job of dissolving and removing deposits and build ups in the fuel injectors, valves, and filters, as well as the combustion chambers. What it does best, however, is add lubricity to the engine, while also improving the quality of the fuel in the car, to help with cold starts, or stale diesel fuel.

This is a very nice product, but again, it’s not great at any one thing. If you’re looking for a huge improvement in any area, look elsewhere. But if you want consistent improvement and health across the board, it’s a terrific purchase.

Editor Rating: This is a solid fuel injector cleaner, but it doesn’t do anything really well, so our rating is 4.0 stars.

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Lucas Fuel Treatment

Lucas Oil 10013-PK4 Fuel Treatment - 1 Gallon (Pack of 4)

This is a strong all-around product. It’s not made specifically for diesel engines, so it can be used for a diesel vehicle, or a car with a standard gasoline engine. And it comes in large doses, for a very affordable price, so you can store it in your garage, and use it to treat the fuel systems of all your vehicles, over and over.

While this product has convenience and practicality in droves, it lacks compared to some of the others in this list in terms of production. It does a decent job breaking down deposits in the fuel injectors, and increasing engine and fuel system health. And it definitely does a good job of mileage and horsepower. However, if you’re looking for the strongest impact on your fuel system, then you should probably turn to a different product. But if you want to have a fuel system cleaner that you can keep around to put in your fuel tank every few thousand miles and keep your cars running well, then this is a great addition to your garage.

Editor Rating: Because this is the type of cleaner you would want to keep around and use on all your cars, but isn’t the strongest for any one car, we give it a rating of 4.6 stars.

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Conclusion

Fuel injector cleaners are very important for cars with diesel engines. They’re an imperative part of maintenance, as they not only keep the fuel system clean, but keep the engine running well, the driving feel strong, and maximize horsepower and fuel mileage. If you have a car with a diesel engine, you need to make sure that your fuel injector cleaner is rated for a diesel engine. These seven products are all great, and will work well with your engine. Each has its own set of benefits and negatives, so be sure to find the product that works best for what you and your vehicle need.

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