In this article, we will present the top 10 best catalytic converter cleaners available on the market, along with our expert reviews. Get one of them and have fun! You’ll love it!
In Hurry? Checkout Our Top Pick Of Best Catalytic Converter Cleaners.
Our Top Pick
9.7/10 our score
Best Catalytic Converter Cleaners
Rank | Product Name | Score |
---|---|---|
1 |
Cataclean 120007 Complete Engine, Fuel and Exhaust System Cleaner, 473 Milliliter |
9. 7 |
2 |
Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner - 15 fl. oz. |
9. 5 |
3 |
Cataclean (120007-2PK) Fuel and Exhaust System Cleaner - 16 fl. oz., (Pack of 2) |
9. 1 |
4 |
OXICAT Oxygen Sensor & Catalytic Converter Cleaner |
8. 8 |
5 |
Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner Special Formula For Use w/Gasoline Engines 3 Liters Cataclean Fuel And Exhaust System Cleaner |
8. 6 |
6 |
DURA LUBE Severe Catalytic and Exhaust Treatment Emissions Test Catalytic Cleaner 16 fl. oz, 1 Pack, HL-402409 |
8. 2 |
7 |
Cataclean 120019 Cataclean - The Original Liquid Science - Complete Engine, Fuel & Exhaust System Cleaner |
8. 0 |
8 |
Witspace 120ML Catalytic Converter Cleaner Engine Booster Cleaner,Deeply Clean Your Converter (120ML) Yellow |
7 .7 |
9 |
Catalytic Converter Cleaner for Car Engine Cleaner Powerful Booster Cleaner Oxygen Sensor The Fuel Injectors Cylinder Heads Cleaning Agent (3Pcs) |
7. 4 |
1. Cataclean 120007 Complete Engine, Fuel and Exhaust System Cleaner, 473 Milliliter
9.7/10 our score
- 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
2. Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner - 15 fl. oz.
9.5/10 our score
- Cleans fuel system, injectors, combustion chamber, pistons and valves
- Restores lost horsepower and increases fuel efficiency
- Prevents rotten egg smell
- Reduces toxic gases and CO2 emissions
- Removes carbon deposits
3. Cataclean (120007-2PK) Fuel and Exhaust System Cleaner - 16 fl. oz., (Pack of 2)
9.1/10 our score
- 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
4. OXICAT Oxygen Sensor & Catalytic Converter Cleaner
8.8/10 our score
- Safe and effective for all petrol (gasoline)and diesel vehicles
- Engineered to clean the entire exhaust system WITH REGULAR USE.
- OXICAT is activated when the catalytic converter reaches its required working temperature.
- Proven safe and effective by the Pros, now available in North America. TUV certified, made in Germany
5. Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner Special Formula For Use w/Gasoline Engines 3 Liters Cataclean Fuel And Exhaust System Cleaner
8.6/10 our score
- Restores, maintains & helps protect the catalytic converter, oxygen sensors, fuel injectors, and cylinder heads
- 3L packaging – Treats up to 30 gallons of fuel
- Packaging versions to cater to Gasoline, Diesel, and Marine markets
- Safe for gasoline, E10, E15, and E85 fuels
- Does not alter fuel composition
6. DURA LUBE Severe Catalytic and Exhaust Treatment Emissions Test Catalytic Cleaner 16 fl. oz, 1 Pack, HL-402409
8.2/10 our score
- Use when warning light is activated
- Use before or prior to replacing catalytic converter
- Protects catalytic system from oil poisons
- Reduces phosphorus and zinc retention levels at catalyst inlet
- Lowers tail pipe emissions
- Fit type: Universal Fit
7. Cataclean 120019 Cataclean - The Original Liquid Science - Complete Engine, Fuel & Exhaust System Cleaner
8/10 our score
- Restores Catalytic Converter, Oxygen Sensors, Fuel Injectors and cylinder heads
- 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
8. Witspace 120ML Catalytic Converter Cleaner Engine Booster Cleaner,Deeply Clean Your Converter (120ML) Yellow
7.7/10 our score
- ❤☛If you ever notice your fuel economy decrease noticeably or a rotten eggs smell is coming from your engine, then you need to clean the catalytic converter right away! Deeply clean your converter with Catalytic Converter Cleaner without removing it! Stop the dreaded “service engine” light flashing up on your display, and get better engine performance!
- ❤☛This is an absolute money-saver! Thanks to lower maintenance and fuel costs. LOWER EMISSION LEVELS: can lower your total hydrocarbon emissions by up to 50 percent.
- ❤☛BETTER ENGINE PERFORMANCE: help clean the fuel injection system, as well as the cylinders, improving overall performance. REDUCE FUEL CONSUMPTION & BAD SMELL: while cutting down on fuel consumption, it also gets rid of the icky smell developed by your car overtime.
- ❤☛PROTECT ENGINE: Proper fuel and exhaust flow will keep that engine running cleaner, smoother, and better, which will also cut down on maintenance costs. CLEAN THE ENTIRE SYSTEM: it can also clean other parts like the oxygen sensor, the fuel injectors, cylinder heads, and others.
- ❤☛EASY CLEANING: simply pour in your fuel tank. SAFE for gasoline, diesel, hybrid, and flex-fuel vehicles, does not alter fuel. Not for use in 2-stroke or oil/gas mix engines.
9. Catalytic Converter Cleaner for Car Engine Cleaner Powerful Booster Cleaner Oxygen Sensor The Fuel Injectors Cylinder Heads Cleaning Agent (3Pcs)
7.4/10 our score
- If you ever notice your fuel economy decrease noticeably or a rotten eggs smell is coming from your engine, then you need to clean the catalytic converter right away!Deeply clean your converter with Catalytic Converter Cleaner without removing it! Stop the dreaded “service engine” light flashing up on your display, and get better engine performance!
- LOWER EMISSION LEVELS: can lower your total hydrocarbon emissions by up to 50 percent.Let you easily pass the vehicle emissions test, while better protection of the environment.
- BETTER ENGINE PERFORMANCE: help clean the fuel injection system, as well as the cylinders, improving overall performance.
- REDUCE FUEL CONSUMPTION & BAD SMELL: while cutting down on fuel consumption, it also gets rid of the icky smell developed by your car overtime.
- PROTECT ENGINE: Proper fuel and exhaust flow will keep that engine running cleaner, smoother, and better, which will also cut down on maintenance costs.