10 Best Injector Cleaners for Smoother Mileage

Are you wondering what the best injector cleaners are?
You’ll find expert recommendations based on real user experiences, like how one mechanic smoothed out his truck’s idle and boosted mileage.

Keeping your car’s engine clean is key to good performance. Fuel injectors can get clogged, hurting your fuel economy. This guide covers the best injector cleaners to fix that.

John, a mechanic from Texas, shared how his truck’s rough idle got smooth after using a top cleaner. It boosted his mileage by 20 percent.

You’ll learn which products work best for most engines. Real tests show they clear deposits fast. Dive in to keep your ride running strong.

List of Top 10 Injector Cleaners

Image Title Best For Price
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits – 15 Ounce

This fuel system cleaner is perfect for drivers who want clean fuel systems and prevention of corrosion. It’s easy to use and needs one bottle per tank for quick, effective cleaning of injectors, carburetors, valves, and chambers.

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz. Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner is perfect for car and truck owners who want to boost fuel economy, stabilize ethanol, and maximize horsepower. It works great in both gasoline and diesel engines to improve responsiveness and vehicle performance.

Chevron Techron Fuel Injector Cleaner, 12 oz, Pack of 1 Chevron Techron Fuel Injector Cleaner, 12 oz, Pack of 1

This fuel injector cleaner is perfect for drivers who want to save money on gas by restoring lost fuel economy. It’s also great for those fighting gas line freeze with just one tankful of easy driving.

STP Direct Injection Fuel Injector Cleaner, Advanced Synthetic Technology Fuel Cleaner Dissolves Hardened Deposits that Accumulate on Injectors, 12 Oz, STP STP Direct Injection Fuel Injector Cleaner, Advanced Synthetic Technology Fuel Cleaner Dissolves Hardened Deposits that Accumulate on Injectors, 12 Oz, STP

This fuel injector cleaner is ideal for car owners who drive gasoline engines and want to fight those pesky hardened deposits that slow down their ride. It’s great for folks with turbo, direct inject, or hybrid engines who pump in gas at every oil change or after every 4,000 miles to keep their car smooth and fast.

STP Fuel Injector Cleaner, Super Concentrated, Bottles, 5.25 Fl Oz, Pack of 12 STP Fuel Injector Cleaner, Super Concentrated, Bottles, 5.25 Fl Oz, Pack of 12

This STP Fuel Injector Cleaner is perfect for drivers who want to restore lost power and acceleration in their cars. It’s also great for car owners looking to remove harmful deposits and save gas on a tight budget.

Rislone 4732 Fuel Injector Cleaner with Upper Cylinder Lubricant, 32 oz Rislone 4732 Fuel Injector Cleaner with Upper Cylinder Lubricant, 32 oz

Is your car not running like it used to? Rislone Fuel Injector Cleaner is your answer. It’s perfect for anyone who wants a smoother ride, better gas mileage, and a more powerful engine.

Berryman (0116-12PK) B-12 Chemtool Carburetor/Fuel Treatment and Injector Cleaner - 15 oz., (Pack of 12) Berryman (0116-12PK) B-12 Chemtool Carburetor/Fuel Treatment and Injector Cleaner – 15 oz., (Pack of 12)

This Berryman B-12 Chemtool is perfect for anyone who wants a cleaner engine. It helps your car run better and last longer.

ATS Chemical 505 CRF Fuel System Treatment - 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines - Help Boost MPG, Restore Power, & Reduce Emissions - Easy Pour Bottle ATS Chemical 505 CRF Fuel System Treatment – 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines – Help Boost MPG, Restore Power, & Reduce Emissions – Easy Pour Bottle

This ATS Chemical 505 CRF Fuel System Treatment is perfect for anyone who wants to keep their engine running smoothly. It’s great for people who want to boost their MPG and reduce emissions!

Universal Fuel Injector Flush Cleaner Adapter, with 2 Size Injectors Nozzles Adapter, 12V Fuel Injector Cleaning Kit for Auto Car Diesel Gas Fuel Injector Universal Fuel Injector Flush Cleaner Adapter, with 2 Size Injectors Nozzles Adapter, 12V Fuel Injector Cleaning Kit for Auto Car Diesel Gas Fuel Injector

This product is perfect for home mechanics who like to fix cars themselves. It’s great for anyone working on motorcycles, EVs, or boats to clean injectors quickly and easily.

Archoil AR6400-D Diesel Fuel System Cleaner - Cleans Injectors, Turbo, DPF & EGR Archoil AR6400-D Diesel Fuel System Cleaner – Cleans Injectors, Turbo, DPF & EGR

This product is perfect for diesel truck and van owners who want smoother idling and better fuel economy. It cleans injectors, turbos, DPFs, and EGRs in all diesel engines and uses a simple schedule: use every 5,000 miles; one bottle treats up to 40 gallons.

Detailed Reviews

Discover the top 10 injector cleaners based on expert tests and user opinions. Find the perfect solution to boost engine performance and fuel mileage. This guide simplifies your choice with clear, concise details for every product.

1. Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits – 15 Ounce

Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce

Red Line 60103 SI-1 is a complete fuel system cleaner that cleans and prevents corrosion in your car’s fuel system. It cleans injectors, carburetors, valves, and combustion chambers with a strong blend of detergents.

Just add one 15-ounce bottle to your gas tank for the best results. This treatment works nearly 100% efficient in one go. Your fuel will burn better and stay stable.

Pros Cons
  • Cleans injectors and carburetors effectively.
  • Shields fuel system from corrosion.
  • Improves gasoline stability and cuts gum.
  • One bottle treats a full tank.
  • Keeps engine running smoothly with deposits gone.
  • Does not clean diesel engines.
  • May cost more than basic cleaners.
  • Takes time for full results.

Perfect For:

This fuel system cleaner is perfect for drivers who want clean fuel systems and prevention of corrosion. It’s easy to use and needs one bottle per tank for quick, effective cleaning of injectors, carburetors, valves, and chambers.

Ready to Purchase?

2. Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner keeps your engine running at its best. This 6 fl. oz. treatment restores fuel economy with ease.

It stabilizes ethanol to prevent issues. Plus, it maximizes horsepower for better performance.

Improves responsiveness in your ride. Works for gasoline and diesel engines. Try it today.

Pros Cons
  • Boost fuel economy and save cash.
  • Stabilize ethanol for smoother runs.
  • Maximize horsepower and power up.
  • Improve engine responsiveness fast.
  • Works in gas and diesel engines.
  • Small bottle means it runs out fast.
  • Might not fix deep clogs in old engines.
  • Costs more than most cleaners.

Perfect For:

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner is perfect for car and truck owners who want to boost fuel economy, stabilize ethanol, and maximize horsepower. It works great in both gasoline and diesel engines to improve responsiveness and vehicle performance.

Ready to Purchase?

3. Chevron Techron Fuel Injector Cleaner, 12 oz, Pack of 1

Chevron Techron Fuel Injector Cleaner, 12 oz, Pack of 1

Chevron Techron is a powerful fuel injector cleaner that keeps your engine running smoothly. It works inside your car with just one tank of gas.

First, it cleans dirty injectors to help your car get better mileage. This means you save money on fuel costs. Plus, it protects against future engine issues.

Second, it removes water to stop gas lines from freezing in cold weather. This keeps your car starting when it needs to. And it’s fully safe for your catalytic converter and oxygen sensor.

Pros Cons
  • Restore lost fuel economy with ease.
  • Works in one tankful while driving.
  • Fights gas line freeze by removing water.
  • Safe for catalytic converters and sensors.
  • Results may vary depending on the car’s condition.
  • Requires repeated use for best results.
  • May not fix severe injector issues.

Perfect For:

This fuel injector cleaner is perfect for drivers who want to save money on gas by restoring lost fuel economy. It’s also great for those fighting gas line freeze with just one tankful of easy driving.

Ready to Purchase?

4. STP Direct Injection Fuel Injector Cleaner, Advanced Synthetic Technology Fuel Cleaner Dissolves Hardened Deposits that Accumulate on Injectors, 12 Oz, STP

STP Direct Injection Fuel Injector Cleaner, Advanced Synthetic Technology Fuel Cleaner Dissolves Hardened Deposits that Accumulate on Injectors, 12 Oz, STP

STP Direct Injection Fuel Injector Cleaner uses Advanced Synthetic Technology. It dissolves deposits that clog injectors.

It comes in a 12 oz bottle. It works with all gasoline engines. Use at every oil change or every 4,000 miles.

The formula uses PEA and PIBA detergents. It helps inhibit corrosion and keeps engine performance strong.

Pros Cons
  • Cleans deposits on injectors for smoother idling.
  • 2x cleaning power vs premium brands.
  • PEA and PIBA detergents remove deposits.
  • Inhibits corrosion and protects fuel system.
  • Compatible with all engines including turbo and hybrids.
  • Diesel engines not supported
  • Limited 12 oz bottle may run out
  • Temporary rough idle may occur

Perfect For:

This fuel injector cleaner is ideal for car owners who drive gasoline engines and want to fight those pesky hardened deposits that slow down their ride. It’s great for folks with turbo, direct inject, or hybrid engines who pump in gas at every oil change or after every 4,000 miles to keep their car smooth and fast.

Ready to Purchase?

5. STP Fuel Injector Cleaner, Super Concentrated, Bottles, 5.25 Fl Oz, Pack of 12

STP Fuel Injector Cleaner, Super Concentrated, Bottles, 5.25 Fl Oz, Pack of 12

Is your engine running rough? STP Fuel Injector Cleaner is here to help!

This super-concentrated formula unclogs dirty fuel injectors. It can also restore lost power and acceleration.

STP easily removes harmful deposits. It saves gas and works with cap-less systems. Add to your fuel tank today!

Pros Cons
  • Unclogs dirty injectors to restore performance
  • Boosts power and acceleration
  • Removes deposits for a cleaner fuel system
  • Compatible with cap-less gas systems
  • Saves gas
  • Highly flammable so handle with extreme care.
  • Small bottle size means quick use and repurchasing.
  • Might not clear the worst deposits in old engines.

Perfect For:

This STP Fuel Injector Cleaner is perfect for drivers who want to restore lost power and acceleration in their cars. It’s also great for car owners looking to remove harmful deposits and save gas on a tight budget.

Ready to Purchase?

6. Rislone 4732 Fuel Injector Cleaner with Upper Cylinder Lubricant, 32 oz

Rislone 4732 Fuel Injector Cleaner with Upper Cylinder Lubricant, 32 oz

This product cleans fuel injectors. It reduces rough idle. It improves power and mileage.

This 32 oz bottle lasts for a full tune-up. Made in the USA.

Pros Cons
  • Cleans your fuel injectors effectively.
  • Smoothes rough idles and hard starts.
  • Works with all gasolines and fuels.
  • Suitable for various engine types.
  • Made in the USA.
  • Requires regular use for lasting engine benefits.
  • May cause brief rough idle when first added.
  • Won’t fix deeply clogged injectors alone.

Perfect For:

Is your car not running like it used to? Rislone Fuel Injector Cleaner is your answer. It’s perfect for anyone who wants a smoother ride, better gas mileage, and a more powerful engine.

Ready to Purchase?

7. Berryman (0116-12PK) B-12 Chemtool Carburetor/Fuel Treatment and Injector Cleaner – 15 oz., (Pack of 12)

Berryman (0116-12PK) B-12 Chemtool Carburetor/Fuel Treatment and Injector Cleaner - 15 oz., (Pack of 12)

Tackle tough fuel problems with the Berryman B-12 Chemtool Carburetor/Fuel Treatment and Injector Cleaner. This powerful blend quickly clears gum, varnish, and moisture from your engine for smoother performance.

Grab a pack of 12 cans today to treat your entire fuel system. Boost compression, cut repairs, and save money on maintenance. It’s safe for your catalytic converter and oxygen sensor, so you can drive with confidence.

Pros Cons
  • Disperses moisture and dissolves gum fast.
  • Cleans fuel system from tank to injectors.
  • Boosts compression and cuts repair costs.
  • Prolongs spark plug and injector life.
  • Safe for converters and sensors.
  • Might cause strong odor during use
  • Needs careful handling to avoid spills
  • Not ideal for all vehicle types

Perfect For:

This Berryman B-12 Chemtool is perfect for anyone who wants a cleaner engine. It helps your car run better and last longer.

Ready to Purchase?

8. ATS Chemical 505 CRF Fuel System Treatment – 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines – Help Boost MPG, Restore Power, & Reduce Emissions – Easy Pour Bottle

ATS Chemical 505 CRF Fuel System Treatment - 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines - Help Boost MPG, Restore Power, & Reduce Emissions - Easy Pour Bottle

ATS Chemical 505 CRF is a strong fuel system treatment that truly cleans your engine. It quickly removes tough carbon deposits from injectors in both gasoline and diesel engines. Plus, it clears away harmful build-up on ports and valves for smoother running.

This easy-to-use cleaner tackles up to 20 gallons of fuel at once. It helps bring back your car’s original power and better fuel use. Treat it as a smart part of keeping your vehicle in top shape every time you service it.

Pick up this 16 oz bottle and feel the difference in your drive. Transport emissions drop while your MPG shoots up.

Pros Cons
  • Powerful formula erases tough carbon buildup on injectors
  • Cleans harmful deposits from ports and valves fast
  • Boosts gas and diesel MPG with easy treatment
  • Restores lost power and engine performance quickly
  • Great for routine maintenance to keep engines smooth
  • Limited to 5 to 20 gallons per treatment.
  • Results vary by engine type.
  • Not a cure for all issues.

Perfect For:

This ATS Chemical 505 CRF Fuel System Treatment is perfect for anyone who wants to keep their engine running smoothly. It’s great for people who want to boost their MPG and reduce emissions!

Ready to Purchase?

9. Universal Fuel Injector Flush Cleaner Adapter, with 2 Size Injectors Nozzles Adapter, 12V Fuel Injector Cleaning Kit for Auto Car Diesel Gas Fuel Injector

Universal Fuel Injector Flush Cleaner Adapter, with 2 Size Injectors Nozzles Adapter, 12V Fuel Injector Cleaning Kit for Auto Car Diesel Gas Fuel Injector

This is a Universal Fuel Injector Flush Cleaner Adapter. It uses a 12V power supply to clean most fuel injectors.

It has two nozzle sizes: 14 mm and 11 mm. It works with a cleaning spray to flush injectors. It fits 12–24V vehicles and many brands.

Pros Cons
  • Wide compatibility with 12-24V vehicles.
  • Two nozzle sizes fit many injectors.
  • See atomization to spot faults.
  • 80cm wire for easy reach.
  • Safe power use: keep under 10 seconds.
  • Short power bursts only; don’t overdo it.
  • Doesn’t work on all direct injection types.

Perfect For:

This product is perfect for home mechanics who like to fix cars themselves. It’s great for anyone working on motorcycles, EVs, or boats to clean injectors quickly and easily.

Ready to Purchase?

10. Archoil AR6400-D Diesel Fuel System Cleaner – Cleans Injectors, Turbo, DPF & EGR

Archoil AR6400-D Diesel Fuel System Cleaner - Cleans Injectors, Turbo, DPF & EGR

Keep your diesel engine running like new with Archoil AR6400-D Diesel Fuel System Cleaner. This product quickly cleans injectors, turbos, DPFs, and EGR systems.

It restores engine performance right away. Fuel economy gets better. Idling becomes smoother.

One 12 oz bottle treats 40 gallons of diesel. Use it every 5,000 miles. It works with all diesel systems.

Pros Cons
  • Rapidly cleans diesel injectors and turbo.
  • Restores performance, improves fuel economy.
  • Treats 40 gallons per bottle.
  • Cleans DPF and EGR systems.
  • Suitable for all diesel systems.
  • Needs repeat uses every 5,000 miles.
  • Treats only 40 gallons per bottle.

Perfect For:

This product is perfect for diesel truck and van owners who want smoother idling and better fuel economy. It cleans injectors, turbos, DPFs, and EGRs in all diesel engines and uses a simple schedule: use every 5,000 miles; one bottle treats up to 40 gallons.

Ready to Purchase?

Buying Guide

Keeping your car’s engine clean boosts its performance. Dirty fuel injectors lower fuel economy. This guide highlights the best cleaners.
A real user named John, a Texas mechanic, fixed his truck’s rough idle with a top cleaner. He saw a 20 percent jump in mileage. Another driver restored lost power and acceleration in just one tank.
Engine Type Compatibility: Check if the cleaner works for gasoline or diesel engines. Many handle both, but diesel-specific ones target unique parts like turbos. Pick one that matches your ride.
Cleaning Effectiveness: Look for cleaners that dissolve deposits and improve flow. Real tests show they clear clogs fast for smoother drives. Strong detergents mean better lasting results.
Additives and Extra Benefits: Some include lubricants to reduce wear. Others stabilize fuel or remove water. Choose based on needs like rust protection or power boost.
Ease of Use: Opt for products that add to a full tank in one go. No tools needed for most. Follow simple steps for quick cleaning.
Package Size and Value: Smaller bottles treat several tanks. Bigger packs offer deals for frequent use. Compare ounces per gallon treated.
Safety and Compatibility: Ensure it’s safe for sensors and converters. Deposits can harm parts, so pick tested formulas. Use as directed to avoid issues.
Brand and Reviews: Trust known brands with good user feedback. Check real experiences for proven gains. Skip unknowns for reliable picks.
Direct vs. Indirect Injection: Products differ for direct or port injectors. Some focus on direct systems with harder deposits. Match to your engine setup.
Water Removal and Corrosion Prevention: Cleaners that fight moisture save in cold climates. They stop freezing and rust. This keeps fuel lines clear.
Frequency of Use: Many work every oil change or 4,000 miles. Others are one-time fixes. Plan for ongoing care.