Converter Cleaner

8 Best Catalytic Converter Cleaners: Top-picks to Buy in 2019

08 Aug 2019

The best catalytic converter cleaner is a professional tool for cleaning and restoring the efficiency of the catalytic converter. Catalytic converter or a catalyst in the exhaust system, in turn, is designed to reduce the emission of harmful substances into the atmosphere with exhaust gases due to their conversion into harmless components. The catalyst is used both on gasoline and diesel engines. It also allows you to clean the power supply system of injection engines without disassembly. If you choose the right one, you get the comfort and right condition of all systems of your car.

Can A Clogged Catalytic Converter Be Cleaned?

Yes, the clogged converter can be cleaned. There are several ways to do this. Some people try to do it with sandpaper, but this does not always help. Plus, you can damage the catalyst itself. The best way to clean a catalytic converter is to use a special catalytic converter cleaner. Read on to find out more about the best options.

Does Seafoam Help Catalytic Converter??

Seafoam is a safe and versatile agent that is added to the fuel, oil or directly into the combustion chamber. It restores the elasticity of rubber seals and engine seals, dissolves carbon deposits. However, one cannot rely only on this tool and expect that the catalyst will never clog. From time to time it must be cleaned with the best catalytic converter cleaner.

What Happens When Catalytic Converter Is Clogged?

What happens when the catalytic converter stops working? Following the signal of the catalyst malfunctioning: the CHECK ENGINE lights up on the dashboard, the engine power decreases (you can press on the gas but nothing will change), the fuel consumption increases, as the oxygen sensors start to work incorrectly.

How Do You Use Cataclean?

In order to clean the catalytic converter with the cleaner, you need to do the following: to begin, you must remove the seals from the fuel tank and pour a full bottle of the best catalytic converter cleaner 2019 into it. After that, you should get behind the wheel and drive your car for at least 15 minutes. Refill the tank if needed. As for the ratio, 450 ml of the product would be ideal for 15 liters of fuel.

What Is The Best Catalytic Converter Cleaner For Ford Trucks?

You should use the versatile cleaner because such vehicles have a very efficient engine. For example, Mr. Gasket Cataclean Catalytic Converter Cleaner will be suitable for you in this case. To be sure, read the reviews.

Top 8 Best Catalytic Converter Cleaners Compared and Reviewed

1. Red Line (60103) Complete SI-1 Fuel Cleaner

1.    Red Line (60103) Complete SI-1 Fuel Cleaner

Are you worried about your vehicle’s reduced fuel economy? It may because of a polluted fuel system, which is where the Red Line Complete 60103 can help. This is a fuel system cleaner meant for most vehicles including utility and all-terrain vehicles, motorcycles, scooters, snowmobiles and even in marine-personal craft.

It is a detergent-based fuel additive that cleans injectors, pollution control valves, combustion chamber deposits and carburetors. This is a concentrated blend of the strongest and most powerful high-temp and low-temp detergents, and a synthetic upper cylinder lubricant.

Red Line is suitable and safe to use with oxygenated fuel, that too with continual use. Regular use of the Red Line additive leads to enhanced fuel stability and a marked reduction in the formation of gum and varnish.

The Red Line not only cleans all types of fuel injectors, including GDI but also induces a two-point reduction for octane. There is practically 100 percent improved efficiency in a single treatment. Use one bottle per tank for best results.

  • Cleans pollution control valves and all types of fuel injectors
  • A single treatment leads to nearly 100% cleaning efficiency
  • 2 point reduction of octane need
  • Safe to use continuously, and with oxygenated fuel
  • Improves fuel stability and reduces gum and varnish formation
  • Improves performance of most vehicles
  • Too short nozzle to contents into the gas tank
  • Too expensive
  • Not much difference in some vehicles

2. Royal Purple Fuel Cleaner System Max-Clean

2.    Royal Purple Fuel Cleaner System Max-Clean

Not many know that the Royal Purple Max-Clean is one of the most overlooked products for extending a vehicle’s life. It is a 3-in-1 fuel additive that improves fuel economy by cleaning injectors and reducing engine accumulation and tailpipe emissions.

The accumulation of deposits because of fuel combustion leads to reduced engine performance and reliability. This is where Max-Clean help by restoring engine surface appearance, performance, and fuel economy.

Max-Clean is effective on most engine types including old, new, diesel, gasoline, supercharged, turbocharged and naturally aspirated types. Its regular use helps reduce CO, noxious and hydrocarbon emissions.

It also prevents premature spark plug fouling, rough idling, and hesitations and stalling on roads. It also reduces all deposit-related engine knocking and pinging problems. It even stabilizes the fuel when in storage and during the off-season. For best effects, use a 20 oz. can for every 10,000-mile interval.

  • Enhances fuel economy, horsepower, and overall vehicle performance
  • Reduces CO, Noxious and hydrocarbon emissions
  • Safe on most engine types, including old, petrol and diesel engines
  • Safe to use in both 4 and 2-cycle engines and specialized emissions equipment
  • Prevents stalling, rough idling, and hesitation
  • A single Max-Clean treatment improves fuel economy and engine performance
  • Leaves engine surfaces looking clean and new and inhibits corrosion and oxidation
  • Complaints of reduced mileage and lack of performance

3. Cataclean 1200018CAT Fuel

3. Cataclean 1200018CAT Fuel

The Cataclean 1200018 may be the catalytic converter cleaner you were looking for. It is a fuel and exhaust system cleaner which with regular use, can help improve your vehicle’s performance and fuel economy.

It is a known fact that the excessive accumulation of carbon not only wastes precious fuel but also reduces horsepower. The only thing it increases is emission output.

The Cataclean helps by not only cleaning your vehicle’s oxygen sensors, cylinder heads, and fuel injectors but also by reducing the accumulation of carbon.

A single 3lt. container is enough to treat 30 gallons of fuel. It is safe to use with various gasoline blends including E10, E15 and E85 fuels. It also helps maintain and at the same time protect the vehicle’s oxygen sensors, fuel injectors, catalytic converter, and cylinder heads.

  • Patented fuel and exhaust system cleaner
  • Improves fuel economy by cleaning oxygen sensors, cylinder heads, and fuel injectors
  • Maximizes power production by cleaning the fuel system
  • Protects catalytic converter, cylinder heads, oxygen sensors, and fuel injectors
  • One container can treat 30 gallons of fuel
  • A bit on the expensive side
  • Doesn’t give immediate results, takes some time to work

4. Cataclean Engine and Catalytic Converter Cleaner

4. Cataclean Engine and Catalytic Converter Cleaner

Do you need help finding the right product for catalytic converter cleaning? Your search may end here with Mr. Gasket’s Cataclean Engine and Catalytic Converter Cleaning treatment.

This fuel and exhaust system cleaner helps reduce the accumulation of carbon and cleans your vehicle’s catalytic converter, fuel injectors, cylinder heads, and oxygen sensors.

It can be used on gasoline, diesel and even hybrid engines because it doesn’t alter fuel composition at all. Regular use of Cataclean can help solve driving problems like reduced power and hard and hesitant starts. It can also extend the engine’s life and be used as a pre-treatment before emission tests.

Cataclean can actually save you money by cleaning and avoiding the replacement of expensive oxygen sensors and catalytic converters. It’s also easy to use; you just have to pour Cataclean into your fuel tank.

  • Reduces carbon accumulation by up to 50%
  • Cleans vehicle oxygen sensors, cylinder heads, fuel injectors, and catalytic converters
  • Made in the USA
  • Safe for use with gasoline and diesel
  • Fixes drivability problems like hesitation, power reduction, and hard starts
  • Extends engine life and can be used as a pre-treatment before emission tests
  • Easy to use
  • For best results, use four times a year
  • Cannot be used in 2-stroke or oil/gas mix engines
  • Takes a lot to give results
  • Effects are seen only after using a lot of Cataclean
  • May not clean everyone’s catalytic converter

5. CRC 05063

5. CRC 05063

Regular use of the CRC 05063 can help and guarantee that your vehicle passes its emission tests. If you wonder why it’s because it helps reduce emission and in the process leads to a marked improvement in your vehicle’s performance in a single full tank.

This is thanks to its emission test formula comprising of a blend of strong detergent additions and emulsifiers. They together work at giving the fuel system a thorough cleaning for improved fuel economy and vehicular performance.

For improved and continual results, it’s better to use CRC 05063 every 3,000 miles. With regular use, there will be a marked improvement in the vehicle’s acceleration and fuel economy with reduced emissions. To top it all, it is safe to use on vehicles running on gasoline and ethanol blended fuels.

  • Safe to use with gasoline and ethanol blended fuels
  • Improves vehicular performance if used every 3,000miles
  • Easy to use- just has to be poured into the tank with fuel
  • A single full tank reduces emission while improving performance
  • A perfect example of maximum cleaning chemistry producing superior results
  • Comes with a guarantee of double your money back if emission test fails
  • Its emulsifiers clean the fuel system and reduce emission
  • Optimal working time
  • Does not give the same results in all vehicles
  • Guarantee not applicable to vehicles with modified engines

6. Hi-Gear HG3270e EZ Catalytic Converter Cleaner

6. Hi-Gear HG3270e EZ Catalytic Converter Cleaner

Your vehicle may not be clean enough to work at optimal performance. this is where Hi-Gear HG3270e can help. It contains fuel additives that help maximize fuel efficiency and also reduces hard starts.

Regular use of Hi-Gear can help restore any lost acceleration and in the process, reduce constant rough idling of the vehicle. All this happens because of Hi-Gear’s special formulation. All it takes is one can of Hi-Gear to treat 17-20 gallons of fuel.

Hi-Gear Catalytic Converter and Fuel System Cleaner can be used on both exhausts and fuel systems. It is a professional grade cleaner that cleans the combustion chamber, EGR valve, and oxygen sensor. In fact, it in the process helps increase horsepower and fuel mileage to lead to better vehicle performance.

  • Reduces the emission of toxic gases and CO2
  • Regular cleaning of the fuel system, combustion chamber, pistons, valves, and injectors helps prevent rotten egg smell
  • Helps regain lost horsepower while increasing fuel efficiency.
  • Get rids of carbon deposits in the vehicle
  • Can be used on all types of vehicles, motorcycles, snowmobiles and even marine-personal-craft.
  • Not much difference noticed in fuel economy
  • Many consider it to be overrated
  • Complaints of seepage that erased usage instructions

7. Solder-It CAT-1

7. Solder-It CAT-1

Worried about the rotten egg odor from your vehicle? If yes, you needn’t because it’s all because of a clogged up catalytic converter, and it’s nothing a catalytic converter cleaner like Solder-It-Cat can’t resolve.

Yes, the Solder-It catalytic cleaner is also a deodorizer which can help eliminate the offensive rotten egg odor. It’s also really helpful at ensuring you pass in the next emission control test.

It is safe to use with all catalytic converters, both monolithic and pelletized types. This means it can be used in most vehicles like all-terrain and utility vehicles, off-road and street-cruiser motorcycles, snowmobiles and even personal marine craft.

Regular use of Clean-It helps extend the time interval between tune-ups, which saves money and also prolongs the vehicle’s life. It eliminated the rotten egg odor by cleaning the oxygen sensor.

  • Help get rid of rotten egg odor
  • May help the vehicle pass in emission control test?
  • Extends the time interval between tune-ups
  • Helps clean oxygen sensor
  • Easy to use
  • Gives different results in different cars
  • Expensively priced
  • May not solve all the problems



The Oxicat Catalytic Converter and Oxygen Sensor Cleaner may be what you are looking for to clean a clogged up exhaust system. It’s new and innovative decarbonizing technology helps clean the entire exhaust system by thoroughly dissolving soot and carbon deposits.

It is safe and effective to use in petrol, diesel and hybrid vehicles and cleans the entire exhaust system with regular use. It also prevents the accumulation of noxious residue that leads to vehicles failing emission tests.

Oxicat is activated only after reaching and sustaining the catalytic converters ideal working temperature. It is a perfect addition to a vehicle’s proactive care plan for optimized vehicle performance and engine life.

  • Made in Germany but now available in North America
  • TUV certified and proven safe and effective by Pros
  • Innovative decarbonizing technology is activated upon the catalytic converter reaching the required working temperature
  • the entire exhaust system is cleaned with regular use
  • Safe to use in hybrid, petrol and diesel vehicles
  • Prevents the buildup of noxious residue
  • Regular use protects the vehicle and environment
  • Benefits are realized only after using a lot of the cleaner
  • Too expensive for repeated treatment where there’s no guarantee of success

Types Of Best Catalytic Converter Cleaner

All such cleaners can be divided into three types.

  • Gas engine cleaners that can be used strictly for gas-fuelled engines.
  • Cleaners for gasoline engines, which respectively apply only to gasoline engines.
  • Versatile cleaners that can be used with gasoline, diesel and gas engines.

Best Catalytic Converter Cleaner Buying Guide — What To Look At?

By and large, there are no special criteria for choosing the best rated catalytic converter cleaner. However, pay attention to such moments.

1. Is the Brand Proven and Famous?

You may not know that you have a 100% quality best catalytic converter cleaner in front of you, because you don’t really know much about its composition. Therefore, give preference to proven brands whose products have all the proper certificates and are well proven. To know more, always read reviews on each product.

2. What About the Level of Safety?

Choose clogged catalytic converter cleaner that complies with TUV and OTC certification. It means that products which have these certificates meet the permissible norms of the content of volatile compounds and the content of sulfur.

3. Compatible With Your Motor System

As mentioned above, there are cleaners for gas engines, gasoline engines and a universal one that fits different types. Examine all the characteristics of your motor system and make sure that the selected product meets the requirements.

4. How Big is the Bottle of the Product?

The cleaning of the converter should be carried out with a certain frequency. So, it will be reasonable to buy the catalytic converter cleaner of the manufacturer which gives a discount on the volume.

5. Is it Cheap or Expensive?

The cost of such a product is very different. Nevertheless, you should understand that a cheap cleaner can have explosive elements in its composition, which can lead to unexpected consequences. Do not save.

6. What Catalytic Converter Cleaner Reviews Say?

Often drivers read user reviews on issues related to the elimination of breakdowns in the car and other similar situations. Take the trouble to read the catalytic converter cleaner review of real users also when buying a cleaner, because it will give you the opportunity to understand how it shows itself in work.

The Best Catalytic Converter Cleaner. Final Advice

Designers of modern internal combustion engines have to pay much attention not only to their technical characteristics but also to environmental safety. Not only the engine but also the exhaust system, in particular, the catalytic converter installed in it, solves this problem. It must be periodically cleaned with the help of the special cleaner. It is the best product to clean it. There are three kinds of catalyst cleaners, depending on a kind of engine.

When choosing the best catalytic converter cleaner, pay attention to the capacity, price, compatibility with your kind of engine, brand, and level of safety. Furthermore, don’t forget to read every review available. It is important to remember that quality products will increase the efficiency of the engine and exhaust systems of your car. The best cleaner is a must-have option of every good driver.

The best catalytic converter cleaner 2019 is Mr. Gasket Cataclean Catalytic Converter Cleaner. This product is compatible both with gas and gasoline engines. Also, it is suitable for diesel options, which makes it versatile. It has all the needed certificates and meets all safety standards. It is really the best product to clean the catalytic converter. In addition, if you want to choose more budget friendly option you can consider other variants from the list.

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