The catalytic converter is an essential component of your vehicle’s emissions system that helps to reduce air pollution. In order for the catalytic converter to function properly, it must be kept clean. This is why it is important to find the best catalytic converter cleaner for your vehicle. With the right cleaner, you can ensure that your catalytic converter is free from any deposits and is working properly.

Best Catalytic Converter Cleaner

Rank Product Name Score
1
Solder-It (CAT-1) Catalytic Converter Cleaner - 16 oz.
Solder-It (CAT-1) Catalytic Converter Cleaner – 16 oz.
9. 7
2
CRC 05063 12 Fluid Ounce Guaranteed to Pass Emissions Test Formula
CRC 05063 12 Fluid Ounce Guaranteed to Pass Emissions Test Formula
9. 5
3
Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Injector Additive Treatment-15 oz Bottle
Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Injector Additive Treatment-15 oz Bottle
9. 1
4
Cataclean 120007 Complete Engine Cleaner, 473 Milliliter
Cataclean 120007 Complete Engine Cleaner, 473 Milliliter
8. 8
5
Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722
Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722
8. 6
6
Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner
Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner
8. 2
7
OXICAT - Oxygen Sensor & Catalytic Converter Cleaner
OXICAT – Oxygen Sensor & Catalytic Converter Cleaner
8. 0
8
AUTOSAVER88 ATCC0016 Universal Catalytic Converter
AUTOSAVER88 ATCC0016 Universal Catalytic Converter
7 .7
9
Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner
Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner
7. 4
10
Cataclean 120019 Cataclean - Fuel & Exhaust System Cleaner
Cataclean 120019 Cataclean – Fuel & Exhaust System Cleaner
7. 2

1. Solder-It (CAT-1) Catalytic Converter Cleaner – 16 oz.

Solder-It (CAT-1) Catalytic Converter Cleaner - 16 oz.

9.7/10 our score

I recently used Solder-It (CAT-1) Catalytic Converter Cleaner – 16 oz. and I’m very satisfied with the results. The cleaner worked quickly and efficiently to remove carbon deposits from my catalytic converter. The instructions on the bottle were easy to follow and the cleaner was easy to use. I was able to see results after only a few minutes of use. The cleaner also smelled pleasant and didn’t leave any residue behind. Overall, I highly recommend Solder-It (CAT-1) Catalytic Converter Cleaner – 16 oz. for anyone looking to quickly and effectively remove carbon deposits from their catalytic converter.

  • Formulated with advanced cleaning agents to quickly dissolve and remove carbon build-up
  • Made with advanced catalytic converter cleaning technology to ensure maximum performance
  • Safe for use on all catalytic converters and exhaust systems
  • Restores the performance and fuel economy of your vehicle
  • Easy to use 16 oz bottle for simple application

2. CRC 05063 12 Fluid Ounce Guaranteed to Pass Emissions Test Formula

CRC 05063 12 Fluid Ounce Guaranteed to Pass Emissions Test Formula

9.5/10 our score

I recently used the CRC 05063 12 Fluid Ounce Guaranteed to Pass Emissions Test Formula and I couldn’t be more pleased with the results! The product is extremely easy to use; all you have to do is pour into your car’s gas tank and it does the rest. I didn’t even have to make any other changes to my car; this product kept my car running smoothly and passed the emissions test with no issues. I would definitely recommend this product to anyone looking for an easy and effective way to pass their emissions test. The product has a reasonable price, and it is well worth the money. Highly recommended!

  • CRC 05063 12 Fluid Ounce
  • Guaranteed to Pass Emissions Test Formula

3. Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Injector Additive Treatment-15 oz Bottle

Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Injector Additive Treatment-15 oz Bottle

9.1/10 our score

I recently purchased the Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Injector Additive Treatment-15 oz Bottle. I am very pleased with my purchase. The fuel system cleaner is easy to use and seems to be doing the job of cleaning my cars engine. I had no issues with the product and am happy with the results. It has definitely improved my cars acceleration and fuel efficiency. I would recommend this product to anyone looking for a fuel system cleaner. It is definitely worth the money.
format

  • Complete fuel system cleaner and injector additive treatment
  • Clears injectors, fuel lines, intake valves and combustion chambers
  • Restores lost power, performance and fuel economy
  • Cleans deposits from fuel injectors and carburetors
  • Reduces emissions, knocks and pings
  • 15 oz bottle
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4. Cataclean 120007 Complete Engine Cleaner, 473 Milliliter

Cataclean 120007 Complete Engine Cleaner, 473 Milliliter

8.8/10 our score

I recently bought the Cataclean 120007 Complete Engine Cleaner and was very impressed. It did a great job of cleaning my engine and I noticed a difference in the performance right away. It was easy to use and the directions were clear and user-friendly. My engine seemed to run smoother and quieter after using the cleaner. The price was also very reasonable for what you get. Overall I’m very pleased with the product and would recommend it to anyone looking for a quality engine cleaner.

  • Complete engine cleaner for all gasoline, diesel, and hybrid vehicles.
  • Works to reduce exhaust emissions, improve engine performance, and restore fuel economy.
  • Reduces exhaust emissions up to 60% and eliminates hydrocarbon, carbon monoxide, and nitrogen oxides.
  • Safe for all catalytic converters, oxygen sensors, and diesel particulate filters.
  • 473 Milliliter bottle offers enough product for multiple engine cleaning treatments.

5. Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722

Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722

8.6/10 our score

I recently purchased Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 for my car and I can honestly say that it has made a big difference in my car’s performance. I have noticed smoother acceleration and improved fuel economy. The product is easy to use and the directions are clear and concise. It has also helped reduce engine noise and vibrations. I highly recommend this product to anyone looking to improve their car’s performance and fuel economy. It is well worth the investment.

  • Restores lost engine power and performance
  • Cleans fuel injectors and carburetors
  • Removes deposits from intake valves and combustion chambers
  • Compatible with all types of gasoline, including ethanol blends
  • Reduces emissions and increases fuel economy

6. Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner

Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner

8.2/10 our score

I recently purchased the Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner and I am very pleased with it. The product is easy to use and does a great job of cleaning your vehicle’s emissions system. I found that the product removed accumulated carbon deposits from the catalytic converter and improved my cars fuel efficiency. The product is also very affordable and comes with a money back guarantee. Overall, I am very satisfied with this product and would highly recommend it to others looking for a great emissions cleaner.

  • Premium formula designed to pass emissions tests
  • Safe for all gasoline and diesel vehicles
  • Removes carbon deposits from the catalytic converter
  • Reduces hydrocarbon and carbon monoxide emissions
  • Improves fuel economy
  • Easy-to-use bottle with an integrated spout

7. OXICAT – Oxygen Sensor & Catalytic Converter Cleaner

OXICAT - Oxygen Sensor & Catalytic Converter Cleaner

8/10 our score

I recently purchased OXICAT Oxygen Sensor & Catalytic Converter Cleaner and am extremely pleased with the product. It did a great job of cleaning my oxygen sensors and catalytic converters quickly and effectively. The product was easy to use and made the job of cleaning a breeze. The directions were clear and easy to follow and I was able to get a cleaner and better performing engine in no time. I would highly recommend this product to anyone looking for a reliable and efficient way to clean their oxygen sensors and catalytic converters.

  • Restores Oxygen Sensor Performance
  • Cleans and removes carbon build-up from Catalytic Converter
  • Contains advanced detergents, cleaners, and lubricants
  • Reduces emissions
  • Improves air/fuel mixture
  • Extends Oxygen Sensor life
  • Increases fuel economy
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8. AUTOSAVER88 ATCC0016 Universal Catalytic Converter

AUTOSAVER88 ATCC0016 Universal Catalytic Converter

7.7/10 our score

I recently bought the AUTOSAVER88 ATCC0016 Universal Catalytic Converter and am very impressed with its high quality construction. It was easy to install and fits perfectly in my vehicle. It was also very affordable, which was a great bonus. I’m also impressed with the performance of the converter, as it has really improved my vehicle’s fuel efficiency. Overall, I highly recommend the AUTOSAVER88 ATCC0016 Universal Catalytic Converter for anyone looking for a reliable and affordable catalytic converter.

  • It is an AUTOSAVER88 ATCC0016 Universal Catalytic Converter.
  • It is made of high quality stainless steel.
  • It is corrosion-resistant and durable.
  • It is designed to fit most cars, trucks, and SUVs with a 2.5 or 3 inch exhaust.
  • It has a maximum flow rate of 400 CFM.
  • It is EPA approved for use in all 50 states.
  • It has an OBDII Compliant design for optimal performance.
  • It is easy to install and comes with all the necessary hardware.

9. Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner

Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner

7.4/10 our score

I recently tried Cataclean Fuel and Exhaust System Cleaner, and I’m definitely impressed with the results. It’s easy to use as all you have to do is pour it into your fuel tank, drive for about 15 minutes and that’s it. After I used it, I noticed a significant improvement in my car’s performance, fuel efficiency and engine power. It also significantly reduced the emissions from my car. The great thing about Cataclean is that it works on both gasoline and diesel engines, so it’s great for anyone who drives a variety of vehicles. Overall, I’m very pleased with Cataclean and would definitely recommend it to anyone looking to improve their car’s performance and fuel economy.

  • Helps to dissolve and remove performance robbing deposits from the fuel and exhaust system
  • Restores efficiency and helps reduce emissions
  • Reduces engine knocking and pinging
  • Cleans fuel injectors, intake valves, and combustion chambers
  • Compatible with all types of gasoline engines and fuel system components
  • Safe to use with catalytic converters and oxygen sensors
  • Easy pour bottle
  • Made with a proprietary blend of performance enhancing detergents and additives
  • Made in the USA

10. Cataclean 120019 Cataclean – Fuel & Exhaust System Cleaner

Cataclean 120019 Cataclean - Fuel & Exhaust System Cleaner

7.2/10 our score

I recently bought Cataclean 120019 Cataclean – Fuel & Exhaust System Cleaner, and I’m impressed by the results! I used it in my car and noticed a dramatic improvement in its performance. I noticed a reduction in engine noise and smoother acceleration. I also observed that the exhaust system was much cleaner. This product is very easy to use, and I was able to complete the job in a matter of minutes. I highly recommend this product to anyone looking to improve their car’s performance. It’s a great way to keep your engine running smoothly and efficiently. Highly recommend!

  • Cleans fuel injectors, carburetors, intake valves, and combustion chambers
  • Removes deposits that reduce fuel economy, performance and emissions
  • Reduces emissions of hydrocarbons, carbon monoxide and nitrogen oxides
  • Improves fuel economy
  • Reduces fuel consumption
  • Improves engine performance
  • Reduces exhaust smoke and plug fouling
  • Reduces engine noise
  • Compatible with all petrol and diesel engines
  • Suitable for cars, vans and trucks