The 6 Best Engine Catalytic Converter Cleaners (2022 reviews)

Dura Lube offers a variety of cleaners for personal choice and yet maintains quality in all the variants. The Dura Lube Engine Catalytic Converter Cleaner works with a noticeable difference, provides great value and it is round. Use before replacing your catalytic converter helps pass the emissions control test. And, it provides better gas mileage and it passed emissions.

The cleaner is formulated to protect and treat the catalytic converter and exhaust system from oil poisons. Most importantly, the dura lube engine catalytic converter cleaner reduces phosphorus and zinc retention levels at the catalyst inlet.

Most customers find that the cleaner does not come back on fantastic, If it does, leave it on at that point. And, a few strongly agree that the cleaner is bank 1 first and then bank 2.

Top Customer Quotes:

Use before or prior to replacing the catalytic converter.
This cleans the exhaust valve too, plus it takes 3 bottles to work.
This is always a little bit high on the smog side but never failed.
This is great with a reasonable price and it passed smog.

Best For Perfect Fitment: Magnaflow Exhaust Products Engine Catalytic Converter Cleaner

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The Magnaflow Exhaust Products line of cleaners comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Magnaflow Exhaust Products Engine Catalytic Converter Cleaner is fast shipping free, works fine and it runs great. Make sure this fits by entering your model number. Moreover, this works with part numbers and it is inexpensive.

The cleaner works fine, works great and it has a sensor port. And, this would be perfect with fast shipping and it is made for perfect fitment. Most importantly, the magnaflow exhaust products engine catalytic converter cleaner has replaced o2 sensors and it is fitment.

Almost all buyers agree that the cleaner will most likely require professional installation or you will need to know how to weld. In addition, they say that the cleaner is designed to be used on federal emissions vehicles (not california emissions (aka carb) vehicles) - the legality of which is governed by each state. Moreover, they say that the cleaner will but it will require modifications to install, it will not bolt on. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:

This is perfect if you choose the correct one based on your engine size.
This is easy to install, sounds great and it is corrosion resistant.
It has been almost a year now and no cel.
This will probably be the last update.

Best With Noticeable Difference: Oxicat Engine Catalytic Converter Cleaner

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For a low asking price, Oxicat Engine Catalytic Converter Cleaner has managed to overwhelm their customers by packing as many features as they could. The oxicat engine catalytic converter cleaner is safe to use in petrol (gasoline), diesel and even hybrid-fuel vehicles. 15 gallons of fuel and feel good driving a cleaner, greener vehicle. Moreover, the cleaner works with a noticeable difference and it passed emissions. Lastly, the oxicat engine catalyticconverter cleaner is highly recommended and it is straight.

"This product fixed the problem. " - says, one customer. To sum up, buyers found this to be one of the best cleaners for daily purposes.

Customers say that getting a engine catalytic converter cleaner, along with cleaner is useful.

Why We Like This:

Once every 4 months, add one can to your fuel tank before filling up.
Protects both your vehicle and the environment.
Specifically engineered to exceed the most recent environmental standards.
Oxicat cleans the entire exhaust system, dissolving soot and carbon deposits throughout.

Best For Diesel Engines: Motorpower Care Engine Catalytic Converter Cleaner

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Motorpower Care offers a variety of cleaners for personal choice and yet maintains quality in all the variants. The Motorpower Care Engine Catalytic Converter Cleaner comes with regular use, optimizes the engine performance and ensures the proper functioning of the catalyst and the lambda sensor. Manufacturer says: If the catalytic converter is completely clogged, we recommend the foam catalyst cleaner (8101) application consumption. Moreover, it works fine, comes easy-to-use and it is suitable for gasoline.

The cleaner is made for diesel engines and it is perfect for high quality. Most importantly, the motorpower care enginecatalytic converter cleaner worked perfectly and it is good for any area of application.

Most buyers opine that the cleaner is in the middle of the night by the way. And, a few say that the cleaner is perfectly and fixed the catalytic corverter issue. Overall, for most customers, the cleaner was what they were looking for.

Customers discovered that getting a engine catalytic converter cleaner, along with cleaner is useful.

Why We Like This:

Suitable for gasoline and hybrid engines, removes buildup dirt, soot, and carbon.
Using it regularly every 5000 miles will extend the catalytic converter life span.
The cleaner helps to maintain proper operation of the turbocharger, o2 sensor, & catalytic converter.
High quality technology cleaner made in Germany.

Best For Fuel Efficiency: Cataclean Engine Catalytic Converter Cleaner

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The Cataclean Engine Catalytic Converter Cleaner's material feels more premium than its price would suggest. The Cataclean engine catalytic convertercleaner is 50 state legal and complies with voc (including california) and OTC regulations, as well as federal low sulphur content requirements for use in diesel motor vehicles and non-road engines. Using Cataclean can lower your total hydrocarbon emissions by up to 50 percent. Also, the cleaner is easy to easily pour into the fuel tank.

Above all, the cataclean enginecatalytic converter cleaner improves overall vehicle performance-including driveability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy.

One customer says - "The best stuff for higher - mileage cars, ups your gas mileage, cleans engine build up. ". Most customers opine that the cleaner is used to unclog the catalytic converter.

Why We Like This:

This is highly recommend, passed smog and it passed inspection.
Not for use in 2-stroke or oil/gas mix engines.
Safe for gasoline, diesel, hybrid and flex-fuel vehicles; does not alter fuel.

Best For Bad Smell: Fan-Ling Engine Catalytic Converter Cleaner

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Compared with other cleaners in this category, the Fan-Ling Engine Catalytic Converter Cleaner has a convenient design. The fan-ling engine catalyticconverter cleaner works for bad smell and it has lower emission.s. If you ever notice your fuel economy decreasing noticeably or a rotten eggs smell coming from your engine, then you need to clean the catalytic converter right away. Also, this is an absolute money-saver.

Most importantly, the fan-ling engine catalytic convertercleaner can be used thanks to lower maintenance and it is great for easy cleaning the entire system.

To sum up, the tone of buyers is very positive and we believe that the cleaner suits the purpose.

Why We Like This:

This has lower emission levels, makes for easy cleaning and it has reduced fuel consumption.
Simply pour into your fuel tank.
Lower emission levels: can lower your total hydrocarbon emissions by up to 50 percent.
Deeply clean your converter with catalytic converter cleaner without removing it.