6 Common Problems After Using Cataclean

Popular fuel additive Cataclean claims to clean your fuel system and improve the performance of your fuel system. Is all of this genuine, including the promise that it will increase your power and gas mileage? Problems after using Cataclean are rare, but they happen sometimes.

What is Cataclean? 


A chemical called Cataclean is used to unclog the fuel injector of your car. The manufacturer asserts that Cataclean maintains and repairs your entire fuel system, improves MPG, and cuts hydrocarbon emissions by up to 60% [1].

It also claims to restore and preserve engine performance.

With over 12 years of independent testing, the fuel system cleaner Cataclean has been found to be highly reliable.

It also functions as a simple catalytic converter cleanser. Cataclean Liquid Science is developed for gasoline engines to clean the catalytic converter. Carbon deposits inevitably accumulate in the fuel system with time. This accumulation restricts the exhaust gas flow, which lowers engine performance and efficiency [2].

Does Cataclean Work?

clean catalytic converter

With just one application, Cataclean’s solvents and precisely formulated chemicals eliminate deposits in the catalytic converters.

As a result, it boosts efficiency, enhances performance, and lowers emissions. Not to mention, it’s cost-effective.

Cataclean is not exclusively used in gasoline vehicles. The product is frequently used in hybrid and diesel vehicles as well. To reduce particulate emissions and delay the need for a DPF repair, Cataclean Diesel for diesel engines provides the same detoxifying effect on the catalytic converter and the diesel particulate filter.

Cataclean has something for everyone, no matter what car they drive. They also have a product for motorcycles called Cataclean “One Shot” Bike. With just one use, torque, brake horsepower, and throttle response improve [3].

After using this product for around three weeks, based on our tests, you should notice an improvement in how your automobile runs. However, if you don’t strictly adhere to the instructions, you might not get the desired outcomes.

Applying Cataclean is a simple procedure. You must pour a half-bottle (usually 16 gallons) into the fuel tank. Setting up everything properly before refueling at the pump station shouldn’t be difficult since the procedure takes less than five minutes per tankful.

This product can be used to clean fuel injectors and fuel systems. It’s a good suggestion to run it through the exhaust system because it will also clean the engine. The product performs excellently on older automobiles that have been sitting for years without being driven.

Suppose you have an older automobile or motorcycle that hasn’t been used in years. In that case, the Cataclean gasoline additive may be just what you need to clean the entire vehicle and make everything work smoothly.

Problems after Using Cataclean


The product Cataclean is highly effective and delivers on its promises. However, excessive Cataclean use in your car can lead to a few issues. Some of these issues are outlined below:

  1. Engine Parts’ Wear and Tear

Premature wear on your car’s engine components is one of the issues that can arise after using Cataclean. These components, which are all essential to the running of any vehicle, include catalytic converters, turbochargers, and fuel injectors.

Your vehicle’s performance will significantly decline if these components are damaged due to using this product, and it may even require significant repairs or an entirely new engine.

Additionally, you should be informed that Cataclean Fuel Additive might damage your engine. If this is not handled immediately, it may cause diminished performance or even a full engine failure.

Some might believe this problem should only be taken seriously when using an aftermarket product like Cataclean. Still, anyone who uses any fuel additive should be aware of it.

  1. Catalytic Converter Issues

Serious consequences may result from the failure of your catalytic converter. Catalytic converters, as opposed to conventional mufflers or tailpipes, purify your car’s exhaust gases before they exit the engine and disperse into the air.

However, this device loses its ability to function properly when additives like the Cataclean fuel additive harm it. When it occurs, dangerous gases like carbon monoxide (CO) won’t be cleaned out; instead, they’ll be released into the air.

  1. Issues With The Emissions System

Your fuel system can be cleaned, and your vehicle’s mileage can be improved with the help of the Cataclean fuel additive. Unfortunately, although it’s a well-liked product and many people have tried and even recommended it, it can interfere with your vehicle emissions system.

Cataclean products frequently contain chemicals poured into the gas tank, such as detergent, surfactants, and alcohol, to break down muck buildup in the engine. While these substances are effective at cleaning up engine components, they also interfere with sensors that determine how your vehicle’s pollution control system should operate.

  1. It Might Harm The Oxygen Sensor

The oxygen sensor tracks oxygen levels in the exhaust gases coming from your car. Several issues could arise if it fails. Your automobile won’t operate effectively, consuming more gasoline than is necessary.

When you are driving at low speeds, the engine might not function well, which could result in stalling or rough idling. When your Check Engine Light illuminates, it usually means that one of your emissions systems is malfunctioning.

You must regularly perform an OBD II diagnostic test on your vehicle’s oxygen sensor after using a Cataclean fuel additive to prevent these problems [4].

5.     The Fuel Injectors May Become Clogged

Although Cataclean is a strong cleaning solution that may efficiently remove engine deposits, it has a history of causing issues with fuel injectors. The car’s performance depends greatly on the fuel injectors, which is why they need to be handled with great care.

Unfortunately, chemicals in Cataclean have the potential to jam up these delicate devices, resulting in lower fuel efficiency and even engine failure.

6.     It Might Cause Smoke

There are a few potential reasons your automobile might burn after using Cataclean. The exhaust system should be examined first. The tailpipe or muffler area may emit a lot of smoke. Your car will run rough and lose fuel efficiency if the catalytic converter or oxygen sensors malfunction.

If your engine block or cylinder head isn’t getting enough oxygen, carbon deposits may be another reason the smoke is flowing from your exhaust pipe. Because these deposits become so thick, they start limiting airflow through the valves and pistons, which can result in engine failure.

Fixing Issues Caused by Cataclean


If you have issues after using the Cataclean fuel additive, you might take various steps to fix the situation. These include:

  • Drain your fuel system of Cataclean. If the issue isn’t yet evident, it could be prudent to remove the Cataclean additive while you investigate the root of the problem. Cataclean has been known to interfere with some vehicles’ gasoline pumps and injectors.
  • Flushing the gasoline system is the next step. By doing this, you’ll be able to get rid of everything that has been clogging up your system.
  • Use a fuel system or fuel injector cleaner. This works to clean the engine and injectors in your automobile but may not always do so in the same way. After using Cataclean liquid, consider utilizing one or both of these items appropriately. They can do wonders cleaning out any residual residue in your engine. Use a fuel system cleaner that is compatible with the type of fuel, engine, and the vehicle you are using.
  • Install a new filter after removing all traces of Cataclean from your tank. It’s time to seriously consider fixing your car if these steps don’t resolve the issue.
  • Clean out any traces of Cataclean from the fuel system before continuing. Replace any parts that may have been harmed or destroyed by this product. These might include fuel injectors, catalytic converters, oxygen sensors, emissions system parts (including sensors), and filters (such as air filters).

Benefits of Cataclean


  • Eliminates unpleasant engine odors – The catalytic converter in some engines can eventually begin to smell like rotten eggs. The catalytic cleaner will effectively eliminate the unpleasant odor.
  • Safeguards your engine – Maintaining your engine’s catalytic converter will help you make sure it receives the right fuel and has a healthy exhaust gas flow. This translates to cleaner, more efficient engine operation and reduced maintenance requirements.
  • Increases engine power – Your engine performance may be declining. This might be particularly true if your catalytic converter gets clogged up [5]. However, using a catalytic converter cleaner might be just what you need to return to full power without ever picking up a wrench.
  • Saves money – Regular cleaning increases your car’s MPG and lengthens the catalytic converter’s lifespan, which may cost up to $100 to replace if damaged. However, price of used catalytic converters is high.

How long does it take for Cataclean to work?

After placing the cleaning solution into the gas tank, the cleaner takes around 30 minutes to reach every part of the car that is required for it to function . Because it relies on the car’s engine slightly warming up, you must travel at least one mile for it to function properly.

How to use Cataclean to pass emissions

When purchasing Cataclean Liquid Science for your car, you can choose between the smaller 450 ml bottles or the larger 150 ml bottles of Cataclean ‘One Shot’ Bike. Pour the bottle’s contents into the gasoline tank that is only 1/4 full, drive the car as usual for 10 to 15 minutes, and you’re done.

How effective is Cataclean

You need to use a suitable cleaning solution that works well and smoothly to clean different vehicle components, including oxygen sensors, catalytic converters, cylinder heads, and fuel injectors.

The specially made catalytic converter cleaner solution is quite effective. There are several product reviews on the internet, including YouTube. All these indicate that Cataclean is quite effective in cleaning and maintaining your car engine.

The catalytic converter cleaning will allow your automobile to run smoothly and easily prevent any emission-related problems. However, not all catalytic converter problems can be fixed using the cleaner. You should consider replacing the catalytic converter if it has become blocked, particularly with carbon.

Can I use Cataclean with half a tank of gas?

After applying Cataclean you should start your engine and take a long drive until you see the changes in its performance. The Cataclean converter cleaner works with the gasoline mixture in the fuel tank to form a cleaning combination.

This is the reason you should not use Cataclean in a full tank. When cleaning begins, it is crucial that the cleaner solution (Cataclean) added to your gas is close to the recommended volume. Avoid the error of pouring Cataclean into a gas tank that is already full. You won’t obtain the best outcomes. The recommended level is a third or quarter of a gas tank.

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How often do I need to use Cataclean?

You should utilize Cataclean four times per year. Therefore, the seafoam catalytic converter cleaner can be used at least four times a year. If you routinely utilize the cleaners, you can stop excessive carbon particles from accumulating in your converter before they become more serious.

You might have run into comments from folks who have fallen prey to converter cleaning scams if you’ve read any catalytic converter cleaner reviews, whether in print or online. You don’t need to be tricked, though, as it would take more than a bottle of cleaner to finish the task and leave your vehicle running smoothly.

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Wear to engine components, damage to the catalytic converter, destruction to the oxygen sensor, issues with the emission control system, blocked fuel injectors, and smoke emanating from the exhaust are all issues that your automobile may have after using Cataclean.

So what should you do if Cataclean causes you problems? First, your gasoline system needs to be flushed. This will eliminate any product leftovers that might be the source of your issues, and you can then test if it helps. If not, it’s time to have your vehicle looked at and repaired by a professional. Be careful while putting additives into your car.