10 Best exhaust cleaners of 2026

Save up to 28% off

1

Cataclean
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)
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.
9.7

Exceptional

Our Rating

9.1
Simple to use

8.0
worth the money

8.0
distance
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

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

Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
2

Cataclean
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)
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.
9.5

Excellent

Our Rating

9.1
Simple to use

8.0
worth the money

8.0
distance
3

Cataclean
Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

11% Off
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.
9.4

Excellent

Our Rating

8.9
Simple to use

8.0
worth the money

8.0
distance
4

Cataclean
Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

11% Off
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.
9.3

Excellent

Our Rating

8.9
Simple to use

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.

28% 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.
9.1

Excellent

Our Rating
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6

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

28% 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
7

Mothers

Mothers Exhaust Tip Cleaner & Polish, 8 oz. — Cleans, Polishes & Protects Stainless Steel, Chrome & Black Chrome Tips, Removes Baked-on Carbon, Oxides, Soot & Tarnish, Restores Shine & Luster (05138)
8.8

Very Good

Our Rating
8

Mothers

Mothers Exhaust Tip Cleaner & Polish, 8 oz. — Cleans, Polishes & Protects Stainless Steel, Chrome & Black Chrome Tips, Removes Baked-on Carbon, Oxides, Soot & Tarnish, Restores Shine & Luster (05138)
8.7

Very Good

Our Rating
9

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.
8.6

Very Good

Our Rating

9.9
Simple to use

8.0
worth the money

8.0
distance
10

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.
8.5

Good

Our Rating

9.9
Simple to use

8.0
worth the money

8.0
distance

10 Best exhaust cleaners of 2026

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)

9.1

8.0

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

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)

9.1

8.0

8.0

3

Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

8.9

8.0

8.0

4

Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

8.9

8.0

8.0

5

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

6

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

7

Mothers Exhaust Tip Cleaner & Polish, 8 oz. — Cleans, Polishes & Protects Stainless Steel, Chrome & Black Chrome Tips, Removes Baked-on Carbon, Oxides, Soot & Tarnish, Restores Shine & Luster (05138)

8

Mothers Exhaust Tip Cleaner & Polish, 8 oz. — Cleans, Polishes & Protects Stainless Steel, Chrome & Black Chrome Tips, Removes Baked-on Carbon, Oxides, Soot & Tarnish, Restores Shine & Luster (05138)

9

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

9.9

8.0

8.0

10

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

9.9

8.0

8.0

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