10 Best Cataclean Catalytic Cleaner of 2025

Tested and Reviewed: Top 10 Cataclean Catalytic Cleaner deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

Save 22%

Liqui Moly

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

22% OffFree Shipping

Editor's bottom line:

“This cataclean catalytic cleaner is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Protects the catalytic converter from clogging with soot.
Cleans the injection system and the combustion chamber.
Improves the combustion of the fuel.
Clean engines reduce fuel consumption and therefore CO2 emissions.
Suitable for all gasoline engines with a catalytic converter.

Show Price

Picked by 342 people today

9.5

MotorPower Care

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

Free Shipping

Main Highlights

Clean and protect catalytic converter material
Not required disassembling, easy to use
Clean your vehicle catalytic converter instead of replacing it
Can fix P0420 & P0430 codes if Catalyst not broken

Show Price

9.5

MotorPower Care

Catalytic Converter Cleaner Pass Emissions Test Cleans Catalyst, Oxygen sensor and combustion chamber cleaner, fuel additive

Free Shipping

Main Highlights

Effectively cleans and unclogs catalytic converters, improving overall performance.
Helps restore lost horsepower and fuel efficiency.
Reduces the risk of engine damage.
Easy to use additive that can be directly added to the fuel tank during refueling.
Compatible with all gasoline and hybrid vehicles.

Show Price

9.2

DURA LUBE

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

Free Shipping

Main Highlights

PERFORMANCE. Add to your vehicle anytime to help fuel systems and engine performance.
RECOMMENDATION. Use before replacing catalytic converter.
SHIELD. Protects catalytic system from harmful oil and maintains catalytic efficiency.
REDUCTION. Reduces phosphorus and zinc retention levels at catalyst inlet.
SAVING. Help increase fuel economy, fit type: universal fit work on all engines.

Show Price

9.0

Save 10%

Cataclean

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

10% OffFree Shipping

Main Highlights

Using Cataclean can lower your total hydrocarbon emissions by up to 50 percent
Reduces carbon build-up in catalytic converter, oxygen sensors, fuel injectors and cylinder heads which results in improved fuel efficiency
Improves overall vehicle performance-including driveability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy
Safe for gasoline, diesel, hybrid and flex-fuel vehicles; does not alter fuel
Not for use in 2-stroke or oil / gas mix engines

Show Price

8.8

Mr. Gasket

Cataclean - French/English (120017)

Main Highlights

EPA Approved
Easy to use -Simply pop, pour and go every 3 months
Original long nose bottle which is capless gas tank compatible
Does not alter fuel composition and is safe for gasoline, diesel and Hybrid engines
Perfect for small engines (powersports and lawn and garden)

Show Price

8.6

Cataclean

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

Free Shipping

Main Highlights

EPA Approved
Easy to use -Simply pop, pour and go every 3 months
Original long nose bottle which is capless gas tank compatible
Does not alter fuel composition and is safe for gasoline, diesel and Hybrid engines
Restores Catalytic Converter, Oxygen Sensors, Fuel Injectors and cylinder heads

Show Price

8.3

Mr. Gasket

Cataclean (120007-2PK) Fuel and Exhaust System Cleaner - 16 fl. oz., (Pack of 2)

Free Shipping

Main Highlights

Using Cataclean can lower your total hydrocarbon emissions by up to 50 percent
Reduces carbon build-up in catalytic converter, oxygen sensors, fuel injectors and cylinder heads which results in improved fuel efficiency
Improves overall vehicle performance-including drivability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy
Safe for gasoline, diesel, hybrid and flex-fuel vehicles; does not alter fuel
Not for use in 2-stroke or oil/gas mix engines

Show Price

8.1

Cataclean

Cataclean - Gas 3L Fuel/Exhaust System (120018CAT)

Main Highlights

EPA Approved
Easy to use -Simply pop, pour and go every 3 months
Original long nose bottle which is capless gas tank compatible
Does not alter fuel composition and is safe for gasoline, diesel and Hybrid engines
Restores Catalytic Converter, Oxygen Sensors, Fuel Injectors and cylinder heads

Show Price

8.1

Cataclean

Cataclean - 16Oz. Fuel/Exhaust Sys Clnr (120007-6)

Main Highlights

EPA Approved
Easy to use -Simply pop, pour and go every 3 months
Original long nose bottle which is capless gas tank compatible
Does not alter fuel composition and is safe for gasoline, diesel and Hybrid engines
Restores Catalytic Converter, Oxygen Sensors, Fuel Injectors and cylinder heads

Show Price

Our Best Overall Choice

Best Choice

9.7

Liqui Moly

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

22% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Protects the catalytic converter from clogging with soot.
Cleans the injection system and the combustion chamber.
Improves the combustion of the fuel.
Clean engines reduce fuel consumption and therefore CO2 emissions.
Suitable for all gasoline engines with a catalytic converter.

Show Price

Related Deals You Might Like for Cataclean Catalytic Cleaner

Lucas Oil 10003 Fuel Treatment - 1 Quart

8% Off

Show PriceView

XADO Catalytic Converter Cleaner - Fuel Additive for Gasoline and Diesel Engines - Catalytic System Treatment with Ceramic Metal Conditioner - Exhaust Catalytic-System Cleaner Revitalizant 250 ml

Show PriceView

Engine Wizard - Catalytic Converter Cleaner & Exhaust System Cleaner | Fuel Additive, Fix P0420/P0430, Clean Oxygen Sensor (1 fl. oz)

12% Off

Show PriceView

Glamatic Catalytic Cleaner, Glamatic Boost up Catalytic System Cleaner, Fuel & Exhaust System Cleaner, Catalytic Converter Cleaning Solution, Engine Carbon Cleaner for Performance Optimization(3PCS)

Show PriceView

Yonynn Catalytic Converter Cleaner, Auto Parts Engine Cleaner, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Cleaners, Oil Additive for Gas and Diesel Car (1)

Show PriceView

Nitrox Catalytic Converter Petrol Cleaner, 17 Fl Oz

Show PriceView

Liquii Moly Catalytic System Clean 300 ml 7110-2 Pack

Show PriceView

Deals are Live

Special Amazon deal ends in:

10 Best Cataclean Catalytic Cleaner of 2025

Tested and Reviewed: Top 10 Cataclean Catalytic Cleaner deals with expert ratings from 8.1 to a perfect 10

Liqui Moly

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

Editor's bottom line:

Main Highlights

MotorPower Care

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

Main Highlights

MotorPower Care

Catalytic Converter Cleaner Pass Emissions Test Cleans Catalyst, Oxygen sensor and combustion chamber cleaner, fuel additive

Main Highlights

DURA LUBE

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

Main Highlights

Cataclean

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

Main Highlights

Mr. Gasket

Cataclean - French/English (120017)

Main Highlights

Cataclean

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

Main Highlights

Mr. Gasket

Cataclean (120007-2PK) Fuel and Exhaust System Cleaner - 16 fl. oz., (Pack of 2)

Main Highlights

Cataclean

Cataclean - Gas 3L Fuel/Exhaust System (120018CAT)

Main Highlights

Cataclean

Cataclean - 16Oz. Fuel/Exhaust Sys Clnr (120007-6)

Main Highlights

Our Best Overall Choice

Liqui Moly

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

Editor's bottom line:

Main Highlights

Related Deals You Might Like for Cataclean Catalytic Cleaner

Lucas Oil 10003 Fuel Treatment - 1 Quart

XADO Catalytic Converter Cleaner - Fuel Additive for Gasoline and Diesel Engines - Catalytic System Treatment with Ceramic Metal Conditioner - Exhaust Catalytic-System Cleaner Revitalizant 250 ml

Catalytic Converter Cleaner new technology effective cleaning solution kit

Cataclean - 8Oz Powersports Bottle (120020CAT)

CRC Guaranteed to Pass Emissions Test Formula, 12 Fluid Ounce

Engine Wizard - Catalytic Converter Cleaner & Exhaust System Cleaner | Fuel Additive, Fix P0420/P0430, Clean Oxygen Sensor (1 fl. oz)

Glamatic Catalytic Cleaner, Glamatic Boost up Catalytic System Cleaner, Fuel & Exhaust System Cleaner, Catalytic Converter Cleaning Solution, Engine Carbon Cleaner for Performance Optimization(3PCS)

Yonynn Catalytic Converter Cleaner, Auto Parts Engine Cleaner, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Cleaners, Oil Additive for Gas and Diesel Car (1)

Nitrox Catalytic Converter Petrol Cleaner, 17 Fl Oz

Liquii Moly Catalytic System Clean 300 ml 7110-2 Pack

Deals are Live