10 Best exhaust cleaners of 2025

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Best Choice

1

Cataclean
Cataclean - (2) Bottle 16Oz. Fuel/Exhaust (120019)
Main highlights

EPA Approved and Safe
EPA approved cleaner that is safe for gasoline, diesel, and hybrid engines, ensuring no alteration in fuel composition.

Ideal for Performance Boost
Perfect for restoring catalytic converters, oxygen sensors, and fuel injectors, enhancing vehicle performance.

Highly Praised for Engine Light Fix
Frequently commended for reducing check engine light occurrences, saving on costly repairs.
9.6

Exceptional

Our Rating

9.1
Simple to use

8.0
worth the money

8.0
distance
How do we rank?

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Careful review Our team ensures quality, value, and fit based on real user feedback

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Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
Value for Money

2

MotorPower Care
2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
Main highlights

Easy_Use_No_Disassembly
Clean and protect catalytic converter material without disassembly, easy to use.

Ideal_For_Fault_Codes
Fixes P0420 & P0430 codes if the catalyst is not broken.

Customer_Praise_For_Effectiveness
Highly effective in improving gas mileage and clearing engine codes.
9.5

Excellent

Our Rating
3

DURA LUBE
Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. oz., (PN: HL-402409 PDQ3)
Main highlights

Performance and Economy Booster
Enhances fuel systems, improves engine performance, and increases fuel economy.

Ideal for Catalytic System Protection
Best used before replacing catalytic converters to maintain efficiency.

Customer Praised Emission Reduction
Notably reduces emissions, aiding in passing smog tests.
9.4

Excellent

Our Rating

9.9
Simple to use

8.0
worth the money

8.0
distance
4

Rislone
Rislone Cat Complete Fuel, Exhaust and Emissions System Cleaner, Pack of 1
Main highlights

Cleans Emissions and Fuel System
Enhances power, performance, and mileage by cleaning emissions and fuel systems.

Ideal for Emissions Troubleshooting
Perfect for vehicles with check engine lights due to emissions issues.

Effective Check Engine Light Solution
Customers praise its ability to clear check engine lights quickly.
9.1

Excellent

Our Rating

8.0
worth the money

8.0
distance
5

Liqui Moly
Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

18% Off
Main highlights

Catalytic Converter Protection
Prevents clogging with soot, ensuring optimal converter performance.

Ideal for Gasoline Engines
Best suited for all gasoline engines with catalytic converters.

Enhanced Fuel Combustion
Commonly praised for improving fuel combustion and efficiency.
8.9

Very Good

Our Rating
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6

Generic

Car Exhaust Pipe Cleaner Spray, 4 FL OZ, Safe Rust Remover and Metal Polish, Long-Lasting
8.8

Very Good

Our Rating
7

Chevron
Chevron Techron Concentrate Plus Fuel System Cleaner, 12 oz, Pack of 1
Main highlights

Cleans Restores Protects Fuel System
Chevron Techron Concentrate Plus cleans, restores, and protects fuel injectors, carburetors, intake valves, and combustion chambers, enhancing overall vehicle performance.

Ideal for Regular Maintenance
Use every 3,000 miles for automobiles and trucks, or as needed for other gasoline engines like motorcycles, boats, and lawn care equipment.

Highly Praised for Effectiveness
Customers consistently praise its ability to improve engine performance and fuel economy, making it a trusted choice for vehicle maintenance.
8.7

Very Good

Our Rating

9.7
worth the money

9.5
materials Quality

9.1
Simple to use
8

Cataclean
Cataclean 120007 Complete Engine, Fuel and Exhaust System Cleaner, 473 Milliliter (Packaging May Vary)
Main highlights

Emissions Reduction
Lowers total hydrocarbon emissions by up to 50 percent.

Versatile Vehicle Use
Safe for gasoline, diesel, hybrid, and flex-fuel vehicles.

Customer Praise for Efficiency
Effectively resolves check engine light related to catalytic converters.
8.5

Good

Our Rating

8.9
Simple to use

8.0
worth the money

8.0
distance
9

DURA LUBE

DURA LUBE Severe Fuel System Cleaner | 16 oz., Single
8.4

Good

Our Rating

9.7
Simple to use

9.3
distance

9.1
worth the money
10

Omaky
Omaky 2 Pcs Catalytic Converter Cleaner, Auto Parts Engine Cleaner 120 ml, Fuel and Exhaust System Cleaner, Exhaust Pipe Carbon Removal Cleaner, Fuel System Treatment Oil Additive
Main highlights

Improved Fuel Efficiency
Reduces carbon build-up, enhancing fuel efficiency and lowering emissions.

Versatile Vehicle Use
Ideal for gasoline, diesel, hybrid, and flex-fuel vehicles.

Ease of Use
Simply pour into your fuel tank for easy application.
8.2

Good

Our Rating

10 Best exhaust cleaners of 2025

1

Cataclean - (2) Bottle 16Oz. Fuel/Exhaust (120019)

9.1

8.0

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

3

Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. oz., (PN: HL-402409 PDQ3)

9.9

8.0

8.0

4

Rislone Cat Complete Fuel, Exhaust and Emissions System Cleaner, Pack of 1

8.0

8.0

5

Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

6

Car Exhaust Pipe Cleaner Spray, 4 FL OZ, Safe Rust Remover and Metal Polish, Long-Lasting

7

Chevron Techron Concentrate Plus Fuel System Cleaner, 12 oz, Pack of 1

9.7

9.5

9.1

8

Cataclean 120007 Complete Engine, Fuel and Exhaust System Cleaner, 473 Milliliter (Packaging May Vary)

8.9

8.0

8.0

9

DURA LUBE Severe Fuel System Cleaner | 16 oz., Single

9.7

9.3

9.1

10

Omaky 2 Pcs Catalytic Converter Cleaner, Auto Parts Engine Cleaner 120 ml, Fuel and Exhaust System Cleaner, Exhaust Pipe Carbon Removal Cleaner, Fuel System Treatment Oil Additive

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