The Best Diesel Additives (Review & Buying Guide) in 2020 (2023)

Written By Car Bibles Staff

Updated Sep 6, 2022 12:34 PM

The global diesel prices continue to rise partly because of raw material scarcity. Fuel refineries are now starting to look for crude oil alternatives just to meet the growing demand of the public. If you’re one of the millions of consumers affected by this alarming diesel concern, you’ve come to the right place.

This listing teaches you all about diesel additives. Unknown to many, additives are invented not only for an efficient engine performance and affordable fuel option but also for a cleaner engine emission. To use additives is to help maximize your family’s finances and help save the environment, therefore. If you’re new to the game, choosing diesel additive products can be overwhelming. We feel you and so we prepared you a list for comparison.

The Best Diesel Additive

Lucas may not have the name of a big, branded multinational corporation, but it’s one of the few names in the automotive industry that people trust to provide them with the best possible solutions to their vehicle issues. Take the Lucas fuel treatment, for example. It comes in a very unassuming 1-gallon container that looks like some cheap product from China. However, you can bet that this is 100% made in the US of A.

If you’re on the hunt for the best diesel additives, Lucas should always be at the top of your shortlist. The formulation is already complete as it cleans and lubricates your diesel-powered ride’s fuel system to give you that instant boost not only in terms of engine performance but also in terms of fuel economy. Best of all, you’ll never have to be boggled by faulty pumps and injectors ever again as the Lucas diesel additive protects your vehicle’s most sensitive parts. This is one name that motorists trust when it comes to squeezing out every ounce of performance parameter from their rides.

Key Features

  • Performance and fuel economy booster
  • Efficient fuel system cleaning and protection formula
  • Lengthens lifespan of injectors and pumps
  • ULSD-compliant formulation


  • Brand Lucas
  • Model LUC10013
  • Weight 8 lbs


Stanadyne Performance Formula One Shot

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One good thing about the diesel fuel additive formulation of Stanadyne is that it looks a lot like a nifty bottle that’s so easy to pour into your fuel tank because of its long neck. This greatly eliminates the need for a separate funnel. Best of all, this diesel fuel additive can be used on the different type of diesel fuel systems regardless of the make and model of your ride or even the year. As long it has a diesel engine the Stanadyne diesel fuel treatment should work.

Considered as the best diesel fuel additive because of its all-purpose nature and ease of application, the Stanadyne diesel fuel additive can increase your fuel’s cetane rating by up to 5 points. While this may look modest, at least it gives you an idea of just how much of an increase you’ll get with each treatment. With it is an overall improvement in your ride’s torque, power, and acceleration as well as fuel economy by as much as 9.6%. You’ll get to drive your ride the way you’ve always wanted it.

Key Features

  • For all kinds of fuel systems regardless of vehicle make or year
  • Year-round diesel engine performance booster
  • A 5-point increase in cetane rating
  • 9.5% gain in MPG
  • Enhanced cleaner and protectant capabilities


(Video) Best Diesel Fuel Additive In 2023 - Top 10 Diesel Fuel Additives Review

  • Brand Stanadyne
  • Model 38564
  • Weight 14.4 lbs


Opti-Lube XPD Diesel Fuel Improver

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Improving the properties of the diesel fuel you put into your engine shouldn’t be difficult especially if you’ve got the likes of the Opti-Lube XPD diesel fuel conditioner. This diesel treatment provides your engine and fuel system exceptional lubrication while improving your ride’s mileage. You’ll definitely have more adventures to come with the XPD in your engine and fuel system.

But that’s not all that the XPD diesel additive can bring to your car. While boosting your fuel’s cetane rating, it also cleans and protects your fuel injectors as well as other important components of your fuel delivery. Reduced deposits also mean cleaner emissions. The unique formulation of the XPD diesel treatment also helps improve water separation, ensuring your fuel won’t have any of those nasty bugs that can undermine the lubricity of your diesel fuel. The best news is that the engine additives in the XPD are especially formulated for all types of emissions systems so it’s basically pour-and-drive.

Key Features

  • Boosts cetane rating
  • Enhanced lubricant properties
  • Fuel system cleaners and protectors
  • Improved cold weather performance
  • Compatible with different emissions systems


  • Brand Opti-Lube
  • Model OPT-XPD1-NA
  • Weight 7.9 lbs

If you feel like your diesel engine is hard at work trying to pull your load over a not-so-steep-hill, then perhaps you’ll need Hot Shot’s Secret to give your engine that much-needed boost in power. One of the best diesel additives in the market, the Clean and Boost can increase your fuel’s cetane rating by as much as 7 points. Translated into raw power, you’ll definitely be conquering more terrain while also ensuring that every single component of your fuel system is cleaned and well-protected.

One added benefit of the Diesel Extreme is that you will regenerate your diesel particulate filter a lot less frequently. That’s one item that you can tick off from your regular vehicle maintenance work. At the heart of the Diesel Extreme is a diesel fuel additive with top-of-its-class lubricity enhancement technology, giving you improved power, cleaner fuel system, and better mileage. And with its friendly price, it sure is a great product to put into your diesel engine.

Key Features

  • Top-tier lubricity enhancement
  • 7-point cetane boost
  • 50% reduction in DPF regeneration
  • Enhanced fuel system cleaning and protection formulation
  • Cetane booster, fuel stabilizer properties
  • Corrosion inhibitor


  • Brand Hot Shot's Secret
  • Model P040464Z
  • Weight 4.05 lbs


Archoil Fuel Treatment

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(Video) The *TRUTH* about Diesel Additives - WATCH BEFORE USING!


This diesel fuel treatment from Archoil may look very expensive at first, costing about a Ulysses Grant note for just 8 ounces. But don’t be fooled. This highly concentrated formulation of the best engine additives is already good for 250 gallons of fuel. That is how cost-efficient the Archoil is. It is so efficient that you only need less than 1 mL per gallon, 0.95 mL to be exact. The best diesel fuel additive for those requiring a highly concentrated form of treatment, the Archoil provides a variety of benefits that can easily translate to better driving performance.

Depending on your engine and driving habits, the Archoil diesel treatment can improve mileage by at least 2%, topping at 8%. You won’t have to worry about a very frequent regeneration of your diesel particulate filter, too. Archoil stabilizes your fuel, cleans your fuel system, and gives you the kind of vehicle emission that can easily pass tests with flying colors. It surely is one of the best diesel additives in town.

Key Features

  • 2-8% increase in MPG
  • DPF regeneration frequency reduction
  • Cleans and protects fuel system
  • Increases engine response and power
  • Enhanced lubricity formula


  • Brand Archoil
  • Model AR6200-8
  • Weight 9.6 oz


Hammonds Biobor JF Diesel Fuel Biocide

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They call it the diesel bugs and if you think your car has some of these nasty contaminants you’ll definitely want to pour into your fuel system the Biobor JF diesel fuel treatment. It’s designed specifically to kill bacteria, algae, and fungi that may already be present in your fuel tank. And if there are none of these bugs yet, then the Biobor JF will make sure that none will ever find their way into your fuel tank and wreak havoc in your engine.

It has a highly concentrated formulation, too. A single 16-oz container is good to effectively treat 1,280 gallons, making it one of the best diesel additives for individuals with problematic, germ-laden fuel tanks. The other good news is that the Biobor JF doesn’t limit its bug-killing capabilities to diesel engines of cars. It can also be used on almost anything that is powered by a diesel engine. Boats, farm equipment, and even heavy machinery can all benefit from the engine additives provided by Hammonds.

Key Features

  • Anti-diesel bug formulation
  • ULSD-compliant formulation
  • OEM diesel engine approved
  • Multi-purpose lubricity additive and biocide
  • Anti-corrosion formulation


  • Brand Hammonds
  • Model BB16EZ01US
  • Weight 1.1 lbs

It not only promises you better engine performance including improved mileage, but this diesel fuel conditioner from Howes also delivers on such promises. With its clear golden formulation, the Diesel Treat is just what you need to get your engine working to its optimum levels of efficiency regardless of weather conditions, but mostly when you’re about to get stuck in the dead of winter. It can lower your diesel fuel’s cold plugging point by as much as 20 degrees giving you unsurpassed performance even when the climate isn’t really that cooperative.

The Howes diesel additive comes with an anti-gel formulation, making sure your engine gets to perform as it should without guzzling your fuel needlessly. Motorists who have been using the Diesel Treat have very good things to say about this anti-gel diesel fuel treatment formulation, further saying that it is more than just an anti-gel diesel treatment; it is an all-around additive that literally brings out the best in your diesel engine.

(Video) The BEST ADDITIVES for Your Diesel Engine!

Key Features

  • 20-degree cold filter plugging point reduction
  • Anti-gel formulation
  • Cold weather protection
  • For diesel and biodiesel blends
  • Particulate filter-friendly formulation


  • Brand Howes
  • Model 103060
  • Weight 3.7 lbs


DieselPower Sta-Bil Diesel Formula Fuel Stabilizer

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Owners of vehicles powered by a diesel engine can rely on the prowess of the Sta-Bil diesel treatment formulation to give them a host of benefits that range from better mileage to better overall engine performance. The diesel additive recipe effectively neutralizes and prevents the formation of sediment and sludge in your fuel tank so you get all the raw power of fuel sans impurities or contaminants.

The long-neck design of the Sta-Bil bottle also aids in the treatment process as it makes it a lot easier to pour the chemical concoction right into your fuel tank without the need for a funnel or any other gadget. This diesel fuel treatment from DieselPower greatly improves the cetane rating of the fuel you put into the tank. By how much? that we really don’t know. Suffice it to say that motorists are quite happy with the performance of their vehicles with the addition of such diesel fuel treatment.

Key Features

  • Corrosion protection
  • Oxidation reduce
  • Removes water in fuel
  • Lubricant and cleansing action


  • Brand DieselPower
  • Model 22254
  • Weight 2.07 lbs


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Ford owners call this the best diesel fuel additive for their ride as it is specially formulated for Ford diesel engines. And if in case you don’t own a Ford, fret not as the PM-22 can also be used on other types of diesel engines so you can also enjoy its engine performance improvement and cetane boosting effects.

Fully compliant with the specifications for ultra-low sulfur diesel fuel, this diesel additive from Ford is designed specifically to let your engine roar and give it that oomph that it never had. It’s the diesel fuel treatment that greatly improves the quality and combustibility of ordinary diesel fuel to get your ride started with a simple turn of the ignition. Cranking your engine shouldn’t be a problem with the PM-22 in your fuel system. Of course, Ford has also thought about protecting every single component of your car’s fuel delivery system so you can expect this diesel treatment to be the best.

Key Features

  • Designed for Ford diesel engines
  • Can be used for other diesel engines
  • Boosts cetane rating
  • Improved engine performance
  • USLD compliant formulation


  • Brand Ford
  • Model PM-22-A
  • Weight 1 lb


Power Service Diesel Kleen + Cetane Boost Fuel Additive

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If you own a vehicle that has common rail direct fuel injection system this diesel additive from Power Service should easily maintain that high-performance output of your engine. Its formulation increases the cetane rating of the fuel you put into your tank by as much as 6 points, way better than most diesel fuel treatments in the market.

Diesel Kleen features the SlickDiesel technology that gives your engine and fuel system components the much-needed cleaning and lubrication they need. The mileage improvement can also easily translate into better savings by as much as 8%. When compared to other diesel treatment formulations, however, the Diesel Kleen comes out as less concentrated as a full 80-ounce container can only manage to treat 250 gallons. This is 10 times less concentrated than the Archoil diesel fuel additive. Nevertheless, with improvements in all aspects of your diesel engine performance plus a price that is very friendly on the pocket, the Diesel Kleen still makes for the best diesel fuel additive.

Key Features

  • With slick diesel lubricator
  • 8% fuel economy improvement
  • 6-point Cetane Boost
  • For diesel engines 2007 and onwards
  • Can be used on biodiesel, ultra-low sulfur diesel, and biodiesel blend
  • Can be used on high-pressure common rail systems


  • Brand Power Service
  • Model 03080-06
  • Weight 4.9 lbs

Best Diesel Additives Buying Guide & FAQ

Things to Consider When Buying Diesel Additives

There are a lot of diesel fuel additives in the market and it can be particularly dizzying if you’re not sure what to get in the first place. As such, even before you start shopping for the best diesel fuel additive make sure you understand some factors that should be carefully considered.

  • Type of Additive

This is related to what you want to achieve by using a fuel additive into your car’s system. There are a variety of fuel additives that can have different functions so it is best to list first what you want to achieve and then look for a specific type of fuel additive that can best help you achieve your goal.

  • Treatment Rate

Some products require fuel treatment every time you top up your fuel. Other products will only require periodic treatments, often at regular intervals. Your choice obviously depends on what is convenient for you – treating your fuel every time you top up or treating it every once in a while. There are benefits to every-refuel treatments as you’ll never miss a regimen. The problem is that it can be quite costly. If you go for period treatments, the issue is that you might forget putting the additive.

  • Environmental-soundness

Everyone today is already conscious about the impact of fuel emissions on the environment. And while oil producers are complying with environmental regulations, the fuel additive you use should also not undermine these efforts by fuel manufacturers. Read the label very well and check if there are harmful chemicals that can have a negative effect on the environment.

  • Multi-functionality

We mentioned something about fuel additives being of different types, each with its own purpose or function. In choosing a fuel additive, it is always better to go for a product that can perform a multitude of functions to give you the best value. For example, if a product can protect your engine and fuel system while also stabilizing your diesel fuel and boosting your fuel’s cetane rating, then it is way better than a product that will only boost your cetane rating.

  • Vehicle Appropriateness

Always check if the fuel additive you want to use is compatible with the engine and fuel system in your car. There are products that are more specific to certain types of diesel engines and fuel systems while there are also those that are for general use.

The Best Diesel Additives (Review & Buying Guide) in 2020 (21)

Benefits of Using Fuel Additive

Fuel additives can improve the performance of your diesel engine by making it more efficient when it comes to engine burns. Each stroke of the pistons can deliver the kind of power that one needs from their ride.

Using fuel additives can also help improve fuel economy which can literally translate to better savings on fuel. Instead of refueling more frequently, you’d top up your fuel less often because of the improvement in engine performance and efficiency.

Manufacturers of fuel additives also make sure that their products will not harm the environment. Many are designed to improve the environmental-friendliness of already-eco-friendly modern diesel vehicles.

You are also protecting the different components of your car’s fuel delivery system from the pump to the fuel line and the fuel injectors as well as other related parts. Fuel additives can improve the lubricating efficiency of diesel so these parts are adequately protected.

Treating your vehicle with a fuel additive is also more cost-effective than bringing it to the shop and having a professional do it for you. Virtually anyone who knows how to open the fuel tank lid in his or her vehicle can easily pour a fuel additive.

Types of Fuel Additive

One of the most important factors to consider when picking a fuel additive for your diesel engine is the type of additive. Currently, there are four types of diesel fuel additives.

  • Cetane Boosters

This is almost the equivalent of the octane rating in gasoline. The cetane rating of diesel fuel accounts for its combustibility. The higher the cetane rating, the more efficient is the diesel engine. Boosting the cetane rating of diesel fuel can, thus, give you the engine performance you need.

  • Fuel Stabilizers

These help improve the efficiency of diesel fuel while also preventing hard starts. These are generally included when the car’s engine and fuel system are in a state of disuse, still allowing for the efficient use of the energy stored in diesel fuel.

  • Anti-gel Additives

For those living in colder regions, there’s a tendency for the diesel fuel filter to get clogged when paraffin wax or gel inadvertently forms in the diesel fuel. Although modern diesel cars now come with heated fuel filters and fuel lines, anti-gel additives can still serve to improve the vehicle’s cold-starting performance, especially in extremely cold temperatures.

  • Fuel Injector Cleaners

If you’re experiencing sluggish acceleration, hard-starting, or even poor engine performance in cold weather, you may want to use fuel additives with injector cleaners. These can help remove deposits that may already be clogging your car’s injector nozzles. Some high-end fuel additives can even clean other parts of the engine.

How Diesel and Gasoline Differ

There really isn’t that much difference between diesel and gasoline since both are made from crude oil that underwent a series of refinement. Crude oil undergoes several stages of distillation that separates the various hydrocarbon molecules that are present in crude oil. Gases are the first to be separated followed by solvents. Moderately-light hydrocarbon chains are next to be separated. When these are blended, you have your gasoline. As the crude oil is kept on being distilled, heavier-chained hydrocarbons are also separated. After gasoline is diesel. Next come heating oils, lubricating oils, and paraffin wax. Technically, diesel has a heavier molecular weight than gasoline, giving it a much thicker consistency compared to the water-like consistency of gasoline.

The Best Diesel Additives (Review & Buying Guide) in 2020 (22)

Best Diesel Additives FAQ:

Q: What are diesel fuel additives?

These are chemical formulations that are added to diesel fuel with the goal of improving the lubricant characteristics of diesel fuel especially on the distributor and rotary types of injection pumps. Additives can help improve the lubricity of your diesel fuel while also addressing deposits, cetane reduction, and cold flow issues as well as a host of other benefits.

Q: What is cetane and why boost it?

Diesel guys never mention anything about octane. Instead, they always look at the ‘cetane’ rating of their diesel fuel. Cetane rating is a measure of the diesel fuel’s tendency to burn or ignite. Cetane is a colorless gas that requires very minimal heat to ignite. And since diesel engines compress air making it super-hot before injecting the needed fuel, improving the cetane in the fuel can also improve engine performance. So why boost cetane ratings? It is basically to improve the overall performance of your diesel engine.

Q: Does it void my new vehicle’s warranty?

The Magnusson-Moss Act of 1975 specifically prohibits the voiding of a warranty by any equipment manufacturer simply because a consumer used a fuel additive. So, putting a diesel fuel additive of your choice into your new vehicle will not void its warranty. This is because even original engine manufacturers produce their own brand of fuel additives that can be a lot similar to third-party products. Additionally, producers of diesel fuel often put additives into their products to make them stand out from competition and to adhere to regulations.

Q: How should I add the product to my fuel?

Manufacturers of fuel additives have their different methods of using their fuel additives so it is wise to check the instructions before emptying a bottle into your tank. Generally, it is best to have the fuel tank nearly empty so you can pour the correct amount of fuel additive into your car’s fuel tank before filling it with diesel fuel.

Our Top Pick for Best Diesel Additive

Winning our nod for the best diesel fuel additive is Lucas’ Complete Fuel Treatment that comes with a unique blend of diesel fuel conditioners and fuel injector cleaners to give your ride not only the performance boost it needs but also greater savings in your pocket because of improvements in mileage. The way it protects the various components of the fuel delivery system in your vehicle is noteworthy, saving you additional thousands of dollars from costly repairs should these components fail because of poor-quality fuel.

Diesel fuel additives are an effortless and cost-effective means to improve the performance of your diesel engine, giving you better mileage, and protecting the different parts of your fuel system.

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Are there any fuel additives that actually work? ›

Do Fuel Additives Work? Maybe, but it depends on what you're trying to achieve with your fuel additive. They may prevent future car maintenance problems regarding your fuel injectors and buildup. However, fuel additives may not improve your vehicle's fuel economy right away after just one tank.

What is the best diesel fuel lubricity additive? ›

Which Diesel Fuel Additive Has the Most Lubricity? Hot Shot's Secret ultra-low sulfur diesel (ULSD) additive, LX4 Lubricity Extreme, has the most lubricity available today. If you want an additive that performs at the highest level and adds the most lubricity back into your fuel, you should try LX4 Lubricity Extreme.

What is the best diesel additive for long term storage? ›

Sta-Bil Fuel Stabilizer is ideal for storing diesel fuel. It prevents algae growth and sludge in fuel for up to twelve months, and also cleans your engines fuel system. Most diesel fuels need lubrication added to lube the injector pump in diesel engines and prevent it from wearing out.

Is it worth using a diesel additive? ›

When you balance the value of the benefits vs. the cost of the additive, the answer to the question is a resounding Yes. Diesel fuel additives are worth it for them. And if you're a consumer, luckily you have access to the same kind of commercial-grade diesel fuel additives that these businesses use.

What is the number one fuel injector cleaner? ›

Best Overall Cleaner for Fuel System—Berryman Products 0116 B-12 Chemtool Carburetor and Injector Cleaner. With 1,800+ perfect ratings, Berryman's B-12 Chemtool cleaner wipes out grime, gunk, and deposits from injectors, valves, and other parts of the fuel system and though its price is low, many people swear by it.

What is the number one injector cleaner? ›

#1 Top Pick: Lucas Upper Cylinder Lubricant & Fuel Injector Cleaner. The Lucas Upper Cylinder Lubricant & Fuel Injector Cleaner is formulated for both gasoline engines and diesel engines, meaning that whether you fill up with standard gas or diesel fuel, this product has you covered.

How often should I put injector cleaner in my diesel? ›

Generally, most mechanics recommend cleaning the fuel injectors every 60,000 to 90,000 miles. If you've noticed any of the following, it's time for a fuel system cleaning: Significant decline in your miles per gallon. Loss of performance and power.

Is Lucas Fuel Treatment good for diesel? ›

Lucas Oil Fuel Treatment is formulated for both gasoline and diesel engines, carbureted or fuel injected. It gives your fuel system what it really needs - a blend of super slick oils and additives with a high detergent action that allows the engine to operate at maximum efficiency.

Can fuel additives damage your engine? ›

Can fuel additives damage your vehicle's engine? Yes, if you use them improperly or use them too much. You must follow your vehicle owner's manual and then the instructions on the fuel additive container for best results.

What is the new diesel additive? ›

What is DEF? Diesel Exhaust Fluid (DEF) is a solution of urea and water that's injected into the exhaust stream of diesel vehicles to turn NOx gases (harmful emissions) into nitrogen and water.

Should I use fuel additives in my diesel truck? ›

Diesel fuel quality

While the nation's supply of diesel fuel is generally dependable, it's not always consistent. Diesel engine makers account for swings in quality when designing and certifying their engines. Generally, they do not endorse or recommend the use of fuel additives.

Is sea foam good for diesel engines? ›

Sea Foam Motor Treatment only contains petroleum-based ingredients and is always safe to use in all types of gasoline and diesel engines. It does NOT contain harsh detergent or abrasive chemicals.

When should I put additive in my diesel? ›

Additives work to lower the number of crystals in diesel fuel and to lower fuel's pour point. You should use an additive any time temperatures reach or drop below 32 F, or if temperatures drop drastically. The lower the temperature, the more anti-gelling additive you should add to your fuel.

What is max mpg diesel fuel additive? ›

MaxMPG contains a concentrated level of cetane booster which tremendously upgrades power and performance in all diesel equipment. MaxMPG also has a powerful level of injector cleaner, lubricity additives, corrosion inhibitors, water dispersants and fuel stabilizers.

How long can you store diesel fuel with an additive? ›

Diesel fuel can only be stored from 6 to 12 months on average — sometimes longer under the best conditions. Generally, to prolong the life of the quality of stored diesel fuel, it should be: Kept cool at around 70 degrees Fahrenheit; Treated with biocides and stabilizers.

What are the cons of diesel additives? ›

Disadvantages of diesel fuel additives

Compatibility issues: Some fuel additives don't work with older engines and have only been designed for newer engines. Harmful chemicals: There are some additives that might contain chemicals like alcohol that can damage parts of the engine.

Do diesel additives clean injectors? ›

These fuel additives are available for petrol and diesel engines and promise a wide range of benefits, from keeping carburettors, injectors and intake valves clean, to removing water from the fuel system.

Is Lucas Oil additive good for diesel engines? ›

Lucas Heavy Duty Oil Stabilizer is a 100% petroleum product that was developed to protect against rust and corrosion, eliminate dry starts, lower oil temperature by reducing friction, and extend oil life in any engine – gasoline, diesel or high performance.

Is Techron additive worth it? ›

In fact, using Techron® in a new vehicle is a good preventative measure to keep that new fuel system clean and deposit-free. It also helps to maintain the gas mileage that your new vehicle is designed to deliver.

How do professionals clean fuel injectors? ›

Most popular Injector cleaning methods:
  1. Injector / Injection Cleaner (Pour into fuel tank)
  2. Rail Induced Injector Cleaner (Used by repair shops and most dealers)
  3. DIY Injector Cleaning.
  4. Ultrasonic Fuel Injector Cleaning.

What is better seafoam or Techron? ›

Techron is the better product of the two, though it's slightly more expensive. It's a more powerful cleaner and offers additional benefits to enhance your vehicle's performance.

Is sea foam a good fuel injector cleaner? ›

It works through fuel injectors and carburetors to remove harmful residues and deposits from fuel passageways, intake valves, pistons, and chamber areas. Made from petroleum ingredients, Sea Foam is safe and effective when used in all types of gasoline or diesel fuels and fuel blends.

Can fuel injector cleaner damage injectors? ›

Some of these chemicals can even damage fuel injectors and emissions components, such as oxygen sensors and catalytic converters.

How many bottles of fuel injector cleaner do I need? ›

Add a full bottle of IC5 Fuel Injector Cleaner to your fuel tank. One bottle treats up to 25 gallons. For best results, add when the tank is low to maximize cleaning concentration. Safe for all types of gasoline fuel injection engines.

Can you put too much diesel additive in? ›

You can easily add too much of a high-quality diesel fuel additive. What happens when you over-treat your diesel fuel? Overdosing can lead to a whole new list of fuel and engine issues from clogged filters to overall decreased engine performance and efficiency. If you're losing lubricity, don't over-treat.

Is it worth using diesel injector cleaner? ›

A good fuel injector cleaner can help improve gas mileage, vehicle performance, and lower maintenance costs by keeping the engine clean. A clean engine delivers more power and better performance because it doesn't have to work as hard.

Can diesel injector cleaner damage engine? ›

Injector cleaner: Is it worth it

However, there is a risk, albeit a small one, that you can damage certain engines by using injector cleaners.

Is Lucas Fuel Treatment worthwhile? ›

The reviews for Lucas Fuel Treatment, are for the most part, overwhelmingly positive. People use it in everything from diesel engines to lawn mowers, and many report experiencing better gas mileage. It appears to be one of the best products on the market for keeping fuel injectors in good working order.

Is it best to put fuel treatment in before gas or after? ›

On a simple level, gas treatments work when they are present in the fuel before combustion. The recommendation would be to add any gas treatment you want to use during your fill-up, before you add more gas. Administer the recommended amount of gas treatment into your partially-filled tank, then fill up as normal.

Does diesel fuel treatment work? ›

They do a lot of things - give you better mileage, get rid of water, clean out your engine, protect your fuel system parts - at a fairly low treat rate (usually 1:1000 or 1 ounce to 10 gallons) for an inexpensive price (less than ten cents a gallon to treat).

What happens if you put too much diesel additive? ›

You can easily add too much of a high-quality diesel fuel additive. What happens when you over-treat your diesel fuel? Overdosing can lead to a whole new list of fuel and engine issues from clogged filters to overall decreased engine performance and efficiency. If you're losing lubricity, don't over-treat.

How often should you add diesel fuel additive? ›

Our recommended Year-Round Maintenance Schedule is: Every time you fill up: If temperatures are above 30°F, add Diesel Kleen +Cetane Boost (silver bottle) for maximum performance.


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