Top 10 Catalytic Converter Cleaners

The catalytic converters in our vehicles do an excellent job of cleaning up the gaseous emissions made by our cars and making them less harmful to the environment. They do this by creating a redox reaction that oxidizes some of the more harmful gases and so rendering them neutral.

Needless to say, this means these converters work pretty hard and need a thorough cleaning as part of your standard maintenance routine to keep them running at maximum capacity. There are a lot of cleaners available, but do they really do a good job?

Like everything in life, some do a better job than others. In this post, we have narrowed down the list to the ten best catalytic converter cleaners. We rated them on effectiveness, value for money and ease of use.

We do suggest checking your car’s manual to find out what type of cat converter it has. Also, check whether or not the cleaner can be used in your car’s system.

 

Top 10 Catalytic Converter Cleaners for 2018

Hi-Gear HG3270e EZ Emissions Pass & Catalytic Converter Cleaner

This is a high-grade option that will not only clean any residue from the converter but also helps to clean up the whole fuel system, the pistons, injections and combustion chambers. It is highly Hi-Gear HG3270eeffective at cleaning off hydrocarbons residue and other less than pleasant substances.

If there is a sulfur smell coming from your car’s tailpipe, it means that it is time to get some cleaning done. This is one of the most popular options and works really well. It helps reduce gaseous emissions while at the same time cleaning up the rest of the fuel system as well.

 

CRC 05063 Guaranteed To Pass Emissions Test Formula

This is a more budget-friendly option and contains a cleaner that works really quickly. If you have an older car, this can help you to pass an emissions test and improve your fuel economy as well.

The main benefit of this option is that it works pretty fast. It helps to reduce nitrogen and carbon dioxide outputs substantially. Some would say that it is not quite as effective the Hi Gear, but it is pretty close.

The company recommends using the product every 3000 miles or so.

 

Solder-It CAT-1 Catalytic Converter CleanerSolder-It CAT-1 Catalytic Converter Cleaner

This cat cleaner is good for getting results fast. One bottle is all that you need to get the action started. Add it to the gas tank and then carry on using your vehicle as normal. You should start seeing an improvement once it has worked its way through the fuel system.

This is suitable for both pelletized and monolithic cat converters. If you need to stretch the time between tune-ups as much as possible, this will help you do that. It isn’t the cheapest option out there, but it can help save you when it comes to maintenance costs.

 

Cataclean 473ml Engine and Catalytic Converter Cleaning Treatment

Testing shows that this option can reduce the hydrocarbon gas emissions by as much as 50%. The mixture will also help to clean up your car’s fuel injectors and oxygen sensor. It is effective at removing grime that has built up in the system over a period of time.

How effective the exercise will be is going to depend on what is wrong with your vehicle and how much dirt there is. You may need to apply a second treatment a couple of weeks after the first if your vehicle has been neglected for a while.

If you use your vehicle in a high-dirt environment, like when you go over-roading, the company recommends using this cat cleaner quarterly.

It is an excellent product, but it is also pretty expensive.

 

OXICAT – Oxygen Sensor & Catalytic Converter Cleaner

Made in Germany, this is a good option for you if you need to reduce emissions to pass a test. Its formulation is unique in that it will help to clean out your whole fuel system. It uses decarbonizing tech to remove carbon deposits and soot.

You should see results from your first use. The company recommends using it quarterly to help keep your system clean and improve system performance and fuel efficiency.

 

Sledgehammer Catalytic Converter Fuel System Rapid Induction Deposit Cleaner RemoveSledgehammer Catalytic Converter Fuel System Rapid Induction Deposit Cleaner Remove

If you know a bit about vehicle maintenance, this could be the right option for you. It is a two-stage process. The first step is simple – pour the liquid into the fuel tank and let it do its thing. The second step is trickier – you need to hook up the second bottle to the vacuum line and let it be taken up slowly.

If you know what you are doing, this is a highly effective product. If not, rather skip this one and choose one of the other one step systems.

 

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

This is a product that will clean up your entire fuel system and help to remove residues that could cause higher than normal gaseous emissions. It is a very effective, and concentrated cleanser. If your system has been neglected, a full bottle should be poured into a half a tank of gas.

You should start seeing results from the first use onwards, but the best results will be if you run it through the system at least twice a year. If your car is used a lot, increase that to quarterly.

 

Chevron Techron Concentrate Plus Fuel System Cleaner

This is another all-around cleaner and one of the top options on this list. It comes in at a surprisingly low price, considering how popular it is. It works by removing hydrocarbon emissions from the entire fuel system.

This will help to reduce emissions, improve fuel efficiency, clean fuel sensors and improve performance. Use it every three thousand miles, or when you do an oil change for maximum efficiency for your car’s system.

It is simple to use – just pour it into the gas tank.

 

Royal Purple Max-Clean Fuel System Cleaner and StabilizerRoyal Purple Max-Clean Fuel System Cleaner and Stabilizer

This is another superstar when it comes to an entire fuel system clean. It reduces CO, Nox and Hydrocarbon emissions highly effectively. It will also help to improve fuel efficiency and performance.

If your car has been running sluggishly, or you notice that the exhaust fumes are smelling really bad, it could be time to get a bottle. Price-wise, it falls into mid-range pricing.

 

BG 44K Fuel System Cleaner

This option is designed to get your engine firing on all cylinders again by deep-cleaning the fuel system. The manufacturers recommend using one tin per twenty gallons of gas. It is compatible with all the materials that might be used in your fuel system.

It will also work with most of the commonly used fuel additives and alcohol-blended fuels. If your engine has been sluggish, or regularly stalling as a result of residue building up, you should consider using a cat cleaner.  

 

 

Final Verdict  

There you have it – our top ten choices for Miss Cat Cleaner of the Year, 2018. They help your engine feel beautiful on the inside. Like all beauty competitions, there can really only be one winner. That honor goes to the Hi-Gear HG3270e because of its all-around effectiveness.  

The Chevron Techron Concentrate comes in at a very close second and wins the award for the best value for money option. You really will battle to beat the price as it is a top-performing option that comes in at less than a third of the price of our favorite.

The Royal Purple Max Clean comes in third and deserves a special mention here for cleaning your entire fuel system.

Overall, the real winner here is you – cleaning out the catalytic converter every three to five thousand miles is pretty simple and can make a real difference in terms of performance.

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15 Responses to Top 10 Catalytic Converter Cleaners

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