Are you curious about which exhaust system cleaners can keep your car running smoothly? This guide will explore top-rated cleaners based on expert reviews and real user experiences to help you find the best options for your vehicle.
Exhaust system cleaners keep your car’s engine running smooth. They remove carbon buildup and help parts last longer. Use them to boost fuel efficiency and cut emissions.
Many drivers have shared real stories of how these cleaners fixed their check engine lights and saved on repair costs. This guide uses expert reviews and tests to pick the best options for you. What if one product could make your car drive like new? Keep reading to find out.
List of Top 10 Exhaust System Cleaners
| Image | Title | Best For | Price |
|---|---|---|---|
 |
Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz – Pack of 2 (120019) |
This product is perfect for car owners who want to keep their cars running well. It is also for anyone who wants to pass emissions tests and clear check engine lights. |
|
 |
Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007) |
This product is perfect for anyone who wants to keep their car running well. Cataclean helps your engine work better. |
|
 |
Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner,16.9 oz. | Cleans Catalytic Converter, Reduces Emissions & Saves Gas |
This product is perfect for anyone who wants to keep their car running smoothly. It’s great for those who want to save money on repairs and improve their car’s performance. |
|
 |
Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. oz., (PN: HL-402409 PDQ3) |
This product is perfect for car owners who want to boost engine performance and protect their catalytic system. It also helps truck drivers and families save on gas by making rides more efficient on every drive. |
|
 |
DURA LUBE 2 Pack Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. Oz, 2-Pack Combo Pack |
DURA LUBE 2 Pack Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive is perfect for vehicle owners who want to boost engine performance and guard the catalytic system from harmful oil poisons. It fits all engines and helps cut fuel costs by improving efficiency before replacing parts. |
|
 |
Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner, 16.9 oz, 3-Pack |
This product is perfect for anyone who wants to keep their car running smoothly. It’s great for those who want to save money on repairs and improve their car’s performance. |
|
 |
Rislone® 4744 DPF CLEAN™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 1-Pack |
This product is perfect for diesel truck and SUV owners who want to boost power, save fuel, and avoid engine lights. It’s great for drivers of vehicles with DPF filters to keep exhaust systems clean and running smooth. |
|
 |
Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car(120 ml) (2pcs) |
This product is best for drivers who want easier starts. It helps with carbon build-up in the catalytic converter. |
|
 |
Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT) |
This product is perfect for car owners who want to pass tough emissions tests and clear check engine lights without expensive fixes. It’s also ideal for drivers seeking better fuel mileage and stronger engine power from a simple fuel tank addition. |
|
 |
STP 1 Tank Tune Up Fuel Additive Fuel System Cleaner and Exhaust System Cleaner, Cleans Fuel Injectors, Intake Valves, Cylinder Head and Piston Tops, 12 Fl Oz |
This STP 1 Tank Tune Up is perfect for anyone who wants a cleaner engine. It helps your car run better and last longer. |
Detailed Reviews
Discover the top 10 exhaust system cleaners, picked from expert picks and real user reviews to give you the best options. Each one gets a full review on its key features, real results, and great value, so you know exactly what to pick for your car. Dive in to find the perfect match that boosts engine power and saves money—let’s check them out now.
1. Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz – Pack of 2 (120019)
Sure—ready to help. What would you like to create or edit? If you’re aiming for a specific topic, tone, length, or audience, share those details and I’ll tailor accordingly.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for car owners who want to keep their cars running well. It is also for anyone who wants to pass emissions tests and clear check engine lights.
Ready to Purchase?
2. Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)
Cataclean cleans your car’s fuel and exhaust system. It helps your car pass emissions tests. This product improves your car’s overall performance.
Cataclean can reduce carbon build-up. It is safe for many types of vehicles.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for anyone who wants to keep their car running well. Cataclean helps your engine work better.
Ready to Purchase?
3. Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner,16.9 oz. | Cleans Catalytic Converter, Reduces Emissions & Saves Gas
Power up your car with Rislone 4720. It cleans the fuel, exhaust and emissions system.
Works with gasoline, ethanol and hybrids. Regular use keeps the fuel and exhaust clean. It is EPA compliant and safe for oxygen sensors.
Use every 5,000 miles. Will not void the warranty. Safe for oxygen sensors and catalytic converters.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for anyone who wants to keep their car running smoothly. It’s great for those who want to save money on repairs and improve their car’s performance.
Ready to Purchase?
4. Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. oz., (PN: HL-402409 PDQ3)
Dura Lube Severe helps engines run better. Add it anytime to aid fuel systems. It boosts engine performance.
RECOMMENDATION: Use before replacing the catalytic converter. It shields the catalytic system from harmful oil and keeps it efficient.
REDUCTION lowers phosphorus and zinc at the catalyst inlet. SAVING helps boost fuel economy and fits all engines.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for car owners who want to boost engine performance and protect their catalytic system. It also helps truck drivers and families save on gas by making rides more efficient on every drive.
Ready to Purchase?
5. DURA LUBE 2 Pack Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. Oz, 2-Pack Combo Pack
DURA LUBE is a top fuel additive pack. It cleans your catalytic converter and boosts engine power.
Add it to your tank any time. It shields the catalytic system from oil poisons. It helps keep efficiency high.
This combo works on all engines. It can increase your fuel economy too.
| Pros | Cons |
|---|---|
|
|
Perfect For:
DURA LUBE 2 Pack Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive is perfect for vehicle owners who want to boost engine performance and guard the catalytic system from harmful oil poisons. It fits all engines and helps cut fuel costs by improving efficiency before replacing parts.
Ready to Purchase?
6. Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner, 16.9 oz, 3-Pack
Rislone 4720 Cat Complete cleans your car’s fuel, exhaust, and emissions systems. It boosts power, mileage, and performance while saving gas. Use it on gasoline, ethanol, and hybrid vehicles.
This product prevents costly repairs and keeps your engine healthy. It works every 5,000 miles to stop the CEL light.
It fits all engine types like fuel-injected and turbo. It cuts emissions and protects the environment.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for anyone who wants to keep their car running smoothly. It’s great for those who want to save money on repairs and improve their car’s performance.
Ready to Purchase?
7. Rislone® 4744 DPF CLEAN™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 1-Pack
Rislone 4744 DPF CLEAN boosts power. It cleans the entire emissions & exhaust system. It also cleans the fuel system to boost mileage.
Use it every 5,000 miles. It helps keep the fuel, emissions and exhaust clean. It can help prevent the CEL light from returning.
It will not void the car’s warranty. It is safe for DOC, DPF, SCR and DEF systems and works with ULSD diesel.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for diesel truck and SUV owners who want to boost power, save fuel, and avoid engine lights. It’s great for drivers of vehicles with DPF filters to keep exhaust systems clean and running smooth.
Ready to Purchase?
8. Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car(120 ml) (2pcs)
This catalytic converter cleaner is a simple treatment you pour into your fuel tank. It helps your engine start easily and run smoothly, while cleaning and protecting the catalytic converter.
The product removes carbon buildup from the converter, oxygen sensors, fuel injectors, and cylinder heads. It boosts fuel efficiency, cuts emissions, and fixes issues like rough idle or hard starts.
Pour it into your gas or diesel car safely without any tools. It works for many vehicle types and does not change the fuel. Save money by avoiding costly repairs and extending parts life.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is best for drivers who want easier starts. It helps with carbon build-up in the catalytic converter.
Ready to Purchase?
9. Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)
Cataclean is a fuel and exhaust system cleaner. It helps your car run better. It can also help you pass emissions tests.
Cataclean cleans important parts of your car. This includes the catalytic converter and fuel injectors. Your car might also get better gas mileage.
This product is easy to use. You just add it to your fuel tank. It is safe for many engines.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for car owners who want to pass tough emissions tests and clear check engine lights without expensive fixes. It’s also ideal for drivers seeking better fuel mileage and stronger engine power from a simple fuel tank addition.
Ready to Purchase?
10. STP 1 Tank Tune Up Fuel Additive Fuel System Cleaner and Exhaust System Cleaner, Cleans Fuel Injectors, Intake Valves, Cylinder Head and Piston Tops, 12 Fl Oz
Give your car a powerful tune-up with STP 1 Tank Tune Up. This product helps your car run smoothly and efficiently. It’s a great choice for your car.
This fuel additive cleans your car’s engine. It also reduces harmful emissions.
STP 1 Tank Tune Up helps improve your fuel economy. It also helps your car pass emissions tests. Enjoy a better driving experience.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This STP 1 Tank Tune Up is perfect for anyone who wants a cleaner engine. It helps your car run better and last longer.
Ready to Purchase?
Buying Guide
Exhaust system cleaners can help your car run better. They remove carbon and improve fuel efficiency. Many drivers share stories about how these cleaners fixed their check engine lights.
One user shared how Cataclean helped their car pass an emissions test. Another mentioned Rislone 4720 fixed their car’s rough idle. These cleaners can save money on repairs.
Here are some factors to think about when you buy an exhaust system cleaner:
-
Effectiveness: Look for cleaners that remove carbon and clean the fuel system. Check if they help with emissions and improve engine performance. Make sure the product works as advertised.
-
Compatibility: Ensure the cleaner works with your car’s engine type. Some are for gasoline, diesel, or hybrid cars. Check if it’s safe for your catalytic converter and oxygen sensors.
-
Ease of Use: Most cleaners are easy to use. You usually just add them to your fuel tank. Read the instructions to make sure you use it correctly.
-
Brand Reputation: Choose cleaners from trusted brands. Research the brand and read customer reviews. This helps you find a product that works well.