10 Best Diesel Injector Cleaner Fuel Additive of 2025

Last updated on 09/26/2025

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Hot Shot's Secret Diesel Extreme 1 Gallon, Concentrated Fuel System Cleaner, Diesel Fuel Additive, Injector Cleaner - Increases MPG & Restores Engine Performance

Hot Shot's Secret Diesel Extreme 1 Gallon, Concentrated Fuel System Cleaner, Diesel Fuel Additive, Injector Cleaner - Increases MPG & Restores Engine Performance

Hot Shot's Secret

Free Shipping

Why we love it

Cleans and protects engine components.
Eliminates stubborn injector deposits.
Boosts cetane for better performance.

Main Highlights

CLEANS FUEL STYSTEM: Hot Shot’s Secret Diesel Extreme is designed to thoroughly clean, lubricate, and safeguard all components of your engine & fuel system, such as valves, pumps, rings, pistons, and upper cylinders.
CLEANS FUEL INJECTORS: Designed to eliminate & prevent the buildup of Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID's), as well as other stubborn varnish and deposits, this will keep your engine running smoothly.
BOOSTS CETANE: Increases cetane (up to 7 points), for a more efficient combustion process, improved fuel economy, & increased engine power. It also helps reduce the frequency of DPF regenerations, ensuring a smoother driving experience.
FIXES ISSUES: Non-alcohol-based water dispersant, fortified with military-grade rust and corrosion inhibitors, stabilizes & prevents rust, effectively dispersing moisture, this product ensures to improve overall engine performance.
EASY TO USE: With a simple application of 8 oz. for every 20 gallons, this product is easy to use! Just pour it into your fuel tank during your next fill up or every 6,000 miles
POWERED BY SCIENCE: Our products are engineered to resolve issues, make equipment last longer and improve efficiency. Nothing leaves our building with our name on it unless we know it is absolutely the BEST it can be.

9.9

Exceptional

9.9

Exceptional

Hot Shot's Secret

Hot Shot's Secret Diesel Extreme 1 Gallon, Concentrated Fuel System Cleaner, Diesel Fuel Additive, Injector Cleaner - Increases MPG & Restores Engine Performance

Free Shipping

Why we love it

Cleans and protects engine components.
Eliminates stubborn injector deposits.
Boosts cetane for better performance.

Main Highlights

CLEANS FUEL STYSTEM: Hot Shot’s Secret Diesel Extreme is designed to thoroughly clean, lubricate, and safeguard all components of your engine & fuel system, such as valves, pumps, rings, pistons, and upper cylinders.
CLEANS FUEL INJECTORS: Designed to eliminate & prevent the buildup of Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID's), as well as other stubborn varnish and deposits, this will keep your engine running smoothly.
BOOSTS CETANE: Increases cetane (up to 7 points), for a more efficient combustion process, improved fuel economy, & increased engine power. It also helps reduce the frequency of DPF regenerations, ensuring a smoother driving experience.
FIXES ISSUES: Non-alcohol-based water dispersant, fortified with military-grade rust and corrosion inhibitors, stabilizes & prevents rust, effectively dispersing moisture, this product ensures to improve overall engine performance.
EASY TO USE: With a simple application of 8 oz. for every 20 gallons, this product is easy to use! Just pour it into your fuel tank during your next fill up or every 6,000 miles
POWERED BY SCIENCE: Our products are engineered to resolve issues, make equipment last longer and improve efficiency. Nothing leaves our building with our name on it unless we know it is absolutely the BEST it can be.

Value for Money

Hot Shot’s Secret Diesel Injector Flush – Professional Diesel Injector Cleaner | Cleans IDIDs & Restores Balance Rates | Service-Grade Injection Flush Treatment

Hot Shot’s Secret Diesel Injector Flush – Professional Diesel Injector Cleaner | Cleans IDIDs & Restores Balance Rates | Service-Grade Injection Flush Treatment

Hot Shot's Secret

Free Shipping

Why we love it

Professional-grade for effective cleaning.
Resolves common diesel engine issues.
Safe and effective for all systems.

Main Highlights

Professional-Grade Injector Flush - Hot Shot’s Secret Diesel Injector Flush is a concentrated formula designed for service professionals to clean internal diesel injector deposits (IDIDs) and restore injector balance rates.
Resolves Misfires & Hard Starts - Removes performance-robbing nozzle coking deposits that contribute to rough idling, hard starting, poor MPG and increased DPF regens. Helps address common trouble codes related to injection timing and contribution rates.
Safe Formula - Enhanced with cetane improvers and lubricity additives to keep the engine running safely and efficiently during the cleaning process.
Works Quickly - Flushes entire fuel system in a single treatment for rapid clean-up. Significantly reduces maintenance costs and downtime.
Works Across All Diesel Systems - Safe for use in diesel engines of all sizes — from pickups and semi-trucks to tractors and construction equipment. Compatible with most injection systems including common rail and direct injection setups. Effective in all diesel fuels, including Ultra Low Sulfur Diesel (ULSD) fuel, biodiesel blends and renewable diesel.

Hot Shot’s Secret Diesel Injector Flush – Professional Diesel Injector Cleaner | Cleans IDIDs & Restores Balance Rates | Service-Grade Injection Flush Treatment

Free Shipping

Why we love it

Professional-grade for effective cleaning.
Resolves common diesel engine issues.
Safe and effective for all systems.

Main Highlights

Professional-Grade Injector Flush - Hot Shot’s Secret Diesel Injector Flush is a concentrated formula designed for service professionals to clean internal diesel injector deposits (IDIDs) and restore injector balance rates.
Resolves Misfires & Hard Starts - Removes performance-robbing nozzle coking deposits that contribute to rough idling, hard starting, poor MPG and increased DPF regens. Helps address common trouble codes related to injection timing and contribution rates.
Safe Formula - Enhanced with cetane improvers and lubricity additives to keep the engine running safely and efficiently during the cleaning process.
Works Quickly - Flushes entire fuel system in a single treatment for rapid clean-up. Significantly reduces maintenance costs and downtime.
Works Across All Diesel Systems - Safe for use in diesel engines of all sizes — from pickups and semi-trucks to tractors and construction equipment. Compatible with most injection systems including common rail and direct injection setups. Effective in all diesel fuels, including Ultra Low Sulfur Diesel (ULSD) fuel, biodiesel blends and renewable diesel.

Lucas Upper Cylinder Lubricant & Fuel Injector Cleaner (5.25 oz.)-12 Pack

Lucas Oil

5% OffFree Shipping

Why we love it

Boosts power and fuel efficiency.
Extends pump and injector lifespan.
Cleans and lubricates fuel system.

Main Highlights

Increases power and miles per gallon by burning excess exhaust emissions
Increases the life of pumps and injectors
Cleans and lubricates the fuel system
Neutralizes low sulfur fuel problems

Lucas Upper Cylinder Lubricant & Fuel Injector Cleaner (5.25 oz.)-12 Pack

5% OffFree Shipping

Why we love it

Boosts power and fuel efficiency.
Extends pump and injector lifespan.
Cleans and lubricates fuel system.

Main Highlights

Increases power and miles per gallon by burning excess exhaust emissions
Increases the life of pumps and injectors
Cleans and lubricates the fuel system
Neutralizes low sulfur fuel problems

Hot Shot's Secret Everyday Diesel Treatment 16 oz. (5 Pack) Squeeze Bottle, 6-in-1 Diesel Additive - Injector Cleaner, Fuel System Cleaner, Fuel Additive Boosts Cetane, Packaging May Vary

Hot Shot's Secret Everyday Diesel Treatment 16 oz. (5 Pack) Squeeze Bottle, 6-in-1 Diesel Additive - Injector Cleaner, Fuel System Cleaner, Fuel Additive Boosts Cetane, Packaging May Vary

Hot Shot's Secret

Free Shipping

Why we love it

Improves diesel engine performance.
Enhances fuel economy significantly.
Cleans and protects fuel system.

Main Highlights

EVERYDAY TREATMENT: Keep your diesel engine in top condition with our EDT that is designed to improve performance & maintain engine health. With regular use, you can ensure your engine runs smoothly & efficiently giving you peace of mind on the road.
BOOST FUEL ECONOMY: Enhance your vehicle performance with our diesel additive that boosts cetane levels by up to 7 points resulting in better fuel economy & reduced maintenance costs. Say goodbye to poor acceleration & frequent trips to the mechanic.
FUEL INJECTOR CLEANER: Cleans both internal & external injector deposits, enhances the lubricity of fuel to safeguard the fuel system components, such as the pump & injectors to increase engine longevity while also acting as a fuel system cleaner.
PREVENTS RUST & CORROSION: While demulsifying moisture & adding stability to fuel by preventing oxidation & degradation, it also provides a reliable solution for protecting fuel systems from the damaging effects of rust & corrosion.
EASY TO USE: Use at every fill-up, 1 oz. or 2oz. (for more cetane and lubricity boost) for every 25 gallons of diesel, this product is easy to use! Just pour it into your diesel fuel tank during your next fill up.
POWERED BY SCIENCE: Our products are engineered to resolve issues, make equipment last longer and improve efficiency. Nothing leaves our building with our name on it unless we know it is absolutely the BEST it can be.

Hot Shot's Secret Everyday Diesel Treatment 16 oz. (5 Pack) Squeeze Bottle, 6-in-1 Diesel Additive - Injector Cleaner, Fuel System Cleaner, Fuel Additive Boosts Cetane, Packaging May Vary

Free Shipping

Why we love it

Improves diesel engine performance.
Enhances fuel economy significantly.
Cleans and protects fuel system.

Main Highlights

EVERYDAY TREATMENT: Keep your diesel engine in top condition with our EDT that is designed to improve performance & maintain engine health. With regular use, you can ensure your engine runs smoothly & efficiently giving you peace of mind on the road.
BOOST FUEL ECONOMY: Enhance your vehicle performance with our diesel additive that boosts cetane levels by up to 7 points resulting in better fuel economy & reduced maintenance costs. Say goodbye to poor acceleration & frequent trips to the mechanic.
FUEL INJECTOR CLEANER: Cleans both internal & external injector deposits, enhances the lubricity of fuel to safeguard the fuel system components, such as the pump & injectors to increase engine longevity while also acting as a fuel system cleaner.
PREVENTS RUST & CORROSION: While demulsifying moisture & adding stability to fuel by preventing oxidation & degradation, it also provides a reliable solution for protecting fuel systems from the damaging effects of rust & corrosion.
EASY TO USE: Use at every fill-up, 1 oz. or 2oz. (for more cetane and lubricity boost) for every 25 gallons of diesel, this product is easy to use! Just pour it into your diesel fuel tank during your next fill up.
POWERED BY SCIENCE: Our products are engineered to resolve issues, make equipment last longer and improve efficiency. Nothing leaves our building with our name on it unless we know it is absolutely the BEST it can be.

Stanadyne Diesel Injector Cleaner | 12 Pack of 8 oz Bottles 43562

Stanadyne

Free Shipping

Why we love it

One-tank clean-up solution.
Preventive maintenance is essential.
Made by a trusted manufacturer.

Main Highlights

Performance Formula Injector Cleaner is a "One Tank" Clean-Up
Lubricates fuel system components to help prevent wear
Use 4 - 6 times per year as preventive maintenance or when engine performance issues arise
The only Diesel Injector Cleaner made by a Fuel Injection Manufacturer
Each bottle treats up to 25 Gallons of Diesel Fuel - Made in the U.S.A.

Stanadyne Diesel Injector Cleaner | 12 Pack of 8 oz Bottles 43562

Free Shipping

Why we love it

One-tank clean-up solution.
Preventive maintenance is essential.
Made by a trusted manufacturer.

Main Highlights

Performance Formula Injector Cleaner is a "One Tank" Clean-Up
Lubricates fuel system components to help prevent wear
Use 4 - 6 times per year as preventive maintenance or when engine performance issues arise
The only Diesel Injector Cleaner made by a Fuel Injection Manufacturer
Each bottle treats up to 25 Gallons of Diesel Fuel - Made in the U.S.A.

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

Archoil

Free Shipping

Why we love it

Powerful fuel system restoration.
Enhances performance and efficiency.
Ideal for diesel fuel treatment.

Main Highlights

Includes AR6500 Diesel Treatment (40 oz)
Includes AR6400-D Diesel Fuel System Cleaner
Restore key fuel system components - injectors, turbo & dpf
Boost cetane, improve performance and MPG
AR6400-D is not the remedy for HEUI injector stiction. Please use AR9100 Friction Modifier instead

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

Free Shipping

Why we love it

Powerful fuel system restoration.
Enhances performance and efficiency.
Ideal for diesel fuel treatment.

Main Highlights

Includes AR6500 Diesel Treatment (40 oz)
Includes AR6400-D Diesel Fuel System Cleaner
Restore key fuel system components - injectors, turbo & dpf
Boost cetane, improve performance and MPG
AR6400-D is not the remedy for HEUI injector stiction. Please use AR9100 Friction Modifier instead

Performance Formula Diesel Injector Cleaner by Stanadyne - 4 Pack of 32 oz jugs | Stanadyne # 43566

Performance Formula Diesel Injector Cleaner by Stanadyne - 4 Pack of 32 oz jugs | Stanadyne # 43566

Generic

Free Shipping

Why we love it

Effective one-tank solution.
Lubricates and protects components.
Cleans up to 100 gallons.

Main Highlights

Performance Formula Injector Cleaner is a "One Tank" Clean-Up
Lubricates fuel system components to help prevent wear
Use 4 - 6 times per year as preventive maintenance or when engine performance issues arise
The only Diesel Injector Cleaner made by a Fuel Injection Manufacturer
Each bottle treats up to 100 Gallons of Diesel Fuel

Performance Formula Diesel Injector Cleaner by Stanadyne - 4 Pack of 32 oz jugs | Stanadyne # 43566

Free Shipping

Why we love it

Effective one-tank solution.
Lubricates and protects components.
Cleans up to 100 gallons.

Main Highlights

Performance Formula Injector Cleaner is a "One Tank" Clean-Up
Lubricates fuel system components to help prevent wear
Use 4 - 6 times per year as preventive maintenance or when engine performance issues arise
The only Diesel Injector Cleaner made by a Fuel Injection Manufacturer
Each bottle treats up to 100 Gallons of Diesel Fuel

Stanadyne Performance Formula Bundle with Injector Cleaner Diesel Fuel Additive, 8 Ounce, 4 Pack

Stanadyne Performance Formula Bundle with Injector Cleaner Diesel Fuel Additive, 8 Ounce, 4 Pack

Stanadyne

Free Shipping

Why we love it

Improves torque and horsepower.
Enhances fuel economy efficiency.
Protects entire fuel system.

Main Highlights

Contains: Two 8 oz. bottles each of Stanadyne Performance Formula and Stanadyne Injector Cleaner.
Improves Performance: More torque and horsepower with better fuel economy, all-season formula.
Concentrated Formula: Fuel injector deposit cleaner, lubricates and protects entire fuel system.
Safe: Good for diesel exhaust after-treatment and up to B20 bio-diesel while preventing corrosion.
Demulsifies: Removes more water from diesel fuel, compatible with ultra-low-sulphur diesel (ULSD).

Stanadyne Performance Formula Bundle with Injector Cleaner Diesel Fuel Additive, 8 Ounce, 4 Pack

Free Shipping

Why we love it

Improves torque and horsepower.
Enhances fuel economy efficiency.
Protects entire fuel system.

Main Highlights

Contains: Two 8 oz. bottles each of Stanadyne Performance Formula and Stanadyne Injector Cleaner.
Improves Performance: More torque and horsepower with better fuel economy, all-season formula.
Concentrated Formula: Fuel injector deposit cleaner, lubricates and protects entire fuel system.
Safe: Good for diesel exhaust after-treatment and up to B20 bio-diesel while preventing corrosion.
Demulsifies: Removes more water from diesel fuel, compatible with ultra-low-sulphur diesel (ULSD).

Howes Diesel Defender 64-Ounce Injector Cleaner and Diesel Fuel Lubricator 2-Pack (Two 64-Ounce Bottles)

Howes

Why we love it

Adds up to 2.5x lubricity.
Cleans fuel system effectively.
Increases fuel economy guaranteed.

Main Highlights

Adds Up To 2.5x More Lubricity With more lubricity than any other Howes product and others on the market, Diesel Defender is at the top. It is the ultimate choice for heavy-duty vehicles. It protects your system by significantly reducing wear scars. Independent lab* results have confirmed Defender-treated fuel outperformed the US (520mm) and more stringent European (460mm) standards. *via the wear scar test for ASTM D975 High Frequency Reciprocating Rig (HFRR)
Cleans Fuel Injectors Uses superior IDX4 Detergent to attack and destroy even the toughest carbon deposits. When used as directed, Diesel Defender is designed to clean the entire fuel system within three treatments. It also helps prevent future deposits from forming. The removal of these deposits keeps the diesel fuel system performing optimally and increases power. Discover all the differences an injector cleaner diesel fuel truly needs can make with Diesel Defender.
Increased Fuel Economy Guaranteed By safely removing water, Diesel Defender leaves only pure fuel to burn. Your clean injectors then allow for a steady spray pattern, so none of that fuel is wasted. When used regularly, Diesel Defender guarantees a 5% increase in fuel economy or more.
Removes Water Many products emulsify or disperse water and frequently use alcohols or solvents that can do damage to your engine. Diesel Defender is a premium, petroleum-based product that demulsifies water, safely removing it from diesel fuel.

Howes Diesel Defender 64-Ounce Injector Cleaner and Diesel Fuel Lubricator 2-Pack (Two 64-Ounce Bottles)

Why we love it

Adds up to 2.5x lubricity.
Cleans fuel system effectively.
Increases fuel economy guaranteed.

Main Highlights

Adds Up To 2.5x More Lubricity With more lubricity than any other Howes product and others on the market, Diesel Defender is at the top. It is the ultimate choice for heavy-duty vehicles. It protects your system by significantly reducing wear scars. Independent lab* results have confirmed Defender-treated fuel outperformed the US (520mm) and more stringent European (460mm) standards. *via the wear scar test for ASTM D975 High Frequency Reciprocating Rig (HFRR)
Cleans Fuel Injectors Uses superior IDX4 Detergent to attack and destroy even the toughest carbon deposits. When used as directed, Diesel Defender is designed to clean the entire fuel system within three treatments. It also helps prevent future deposits from forming. The removal of these deposits keeps the diesel fuel system performing optimally and increases power. Discover all the differences an injector cleaner diesel fuel truly needs can make with Diesel Defender.
Increased Fuel Economy Guaranteed By safely removing water, Diesel Defender leaves only pure fuel to burn. Your clean injectors then allow for a steady spray pattern, so none of that fuel is wasted. When used regularly, Diesel Defender guarantees a 5% increase in fuel economy or more.
Removes Water Many products emulsify or disperse water and frequently use alcohols or solvents that can do damage to your engine. Diesel Defender is a premium, petroleum-based product that demulsifies water, safely removing it from diesel fuel.