Ameer Randolph
A catalytic converter is an essential component of a vehicle's emission system. Over time, it can become clogged with carbon deposits, which are a byproduct of burning gasoline. This can lead to reduced fuel efficiency, slower acceleration, and unpleasant odours. Cleaning your catalytic converter can help improve your vehicle's performance and health, and there are various methods available to do so. One common method is to use a catalytic converter cleaner, which can be added directly to the fuel tank. Another method is to create a mixture of solvents, such as xylene, acetone, and toluol, and add it to the gas tank. Other alternatives include using lacquer thinner or Cataclean, a low-cost solution to prevent permanent damage. However, it's important to note that cleaning a defective converter may not always be effective, and replacement may be necessary in some cases.
Characteristics and Values of Products that can Clean Fuel Tank and Catalytic Converter
| Characteristics | Values |
|---|---|
| Product Type | Cataclean, Lacquer Thinner, Xylene, Toluene, Naphtha, Cataclean Fuel and Exhaust System Cleaner |
| Function | Breaks down buildup in the catalytic converter, cleans fuel injectors, oxygen sensors, and other engine components |
| Application | Pour into the gas tank, drive for 15-20 minutes, and refuel |
| Cost | Under $30 |
| Availability | Auto parts stores, online |
| Frequency | 4-5 times a year |
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What You'll Learn
Using lacquer thinner
Lacquer thinner is a substance that has been discussed as a potential method for cleaning fuel tanks and catalytic converters. However, it is important to note that the term "lacquer thinner" can refer to different mixtures of chemicals depending on the manufacturer and the region of purchase.
Some people have suggested pouring lacquer thinner directly into the gas tank to clean the fuel system and catalytic converter. For example, a user on BobIsTheOilGuy.com mentioned that they cleared a problem on their 2002 Toyota Solara by running lacquer thinner in the gas tank, as shown in a Scotty Kilmer video. They mentioned that it took two attempts, and the issue didn't return for two years.
On the other hand, some people have expressed concerns about this method. One user on the Chrysler Minivan Fan Club Forums stated that they wouldn't recommend putting lacquer thinner in the gas tank, as it could damage plastic components (gaskets, etc.) in the fuel system between the gas tank and the injectors. They also questioned the effectiveness of this method, stating that the solvent properties of lacquer thinner are lost after the combustion process.
Another user on the same forum suggested removing the catalytic converter and soaking it in lacquer thinner, rather than pouring it directly into the gas tank. They also emphasized the need to exercise caution due to the strong solvents in lacquer thinner, which could potentially damage rubber components in the system.
It is important to note that cleaning a catalytic converter with lacquer thinner or any other method does not guarantee that it will function effectively afterward. If the converter is defective, a replacement may be necessary.
While some people have reported success with using lacquer thinner to clean their fuel tanks and catalytic converters, it is always advisable to proceed with caution and seek professional advice before attempting any cleaning methods that could potentially damage your vehicle's systems.
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Xylene, acetone, and toluol
While using xylene, acetone, and toluol can be an effective and inexpensive way to clean the fuel system and catalytic converter, it may not work in all cases. If the catalytic converter is defective or heavily clogged, cleaning it may not be sufficient, and replacement may be necessary.
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Cataclean
Customer reviews of Cataclean are generally positive. Many customers report that it effectively cleans catalytic converters and exhaust systems, improves engine performance, and increases fuel efficiency. Some customers also report that it helps to clear the check engine light. However, there are also some mixed reviews, with a few customers reporting that the check engine light returned after a certain period of time.
Overall, Cataclean appears to be a safe and effective product for cleaning fuel tanks and catalytic converters, improving engine performance, and maintaining proper engine operation.
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Driving at highway speeds
If you are looking to clean your catalytic converter, there are a few methods you can try. One is to add a cleaner to your gas tank, which will work its way through the exhaust system. These cleaners are inexpensive and can be purchased at most auto parts stores or online. However, it is important to verify that cleaning your catalytic converter is a viable solution to your problem and to use the correct additive for your vehicle.
Another method is to perform a more comprehensive wash that requires the removal of the converter. This method is more involved and may not always be effective if the converter is not working optimally.
Some people have reported success with adding a mixture of common chemicals to their gas tank to clean the catalytic converter. One such mixture is 1 pint of xylene, 4 oz of acetone, and 1 pint of toluol mixed over 2 gallons of gas into a ~1/2 tank (6-10 gallons total). After adding this mixture, it is recommended to drive normally for a day or two and then give the car some "Italian tune": WOT 2K up to 4K and then gradually up to 5K. This process is best accomplished on the highway during non-peak hours.
Another user recommends filling up your gas tank with a Top Tier brand of the manufacturer's recommended octane for your vehicle and then driving for a couple of hundred miles on the interstate to get the catalytic converter hot enough to burn off any soot residues.
It is important to note that while cleaning your catalytic converter may improve its performance, it is not always a guaranteed solution. In some cases, replacement may be necessary.
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$10.99
Replacing the converter
If your catalytic converter is defective, cleaning it may not be enough to resolve the issue. In such cases, replacing the converter is the best course of action.
Before replacing the catalytic converter, it is important to complete a full exhaust inspection and address any other issues, such as cracked manifolds and exhaust leaks. This will help ensure that the root cause of any problems is identified and rectified.
When replacing the catalytic converter, follow these steps:
- Inspect the exhaust manifold for cracks. If cracks are present, replace the manifold before installing the new converter to prevent converter failure.
- Remove the nuts from the intake flange and set them aside.
- Remove the engine support bracket.
- Remove the old catalytic converter.
- Line up the new catalytic converter and secure it in place with one top nut.
- Attach the engine bracket to the new converter hanger and ensure the bolt is secured to the hanger as well.
- Reinstall the downstream oxygen sensor.
- Tighten the converter inlet flange nuts according to the manufacturer's specifications.
- Reinstall the hardware for the outlet flange.
It is recommended to consult a professional or refer to vehicle-specific instructions for a comprehensive understanding of the replacement process.
Additionally, when choosing a replacement catalytic converter, it is important to consider the type of converter required for your vehicle. Federal emissions-certified vehicles require EPA-compliant converters, while CARB-compliant vehicles are necessary in states like California, Colorado, Maine, and New York. Walker Exhaust Systems, for example, offers premium direct fit and universal catalytic converters that meet EPA and CARB requirements.
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Frequently asked questions
You can clean your fuel tank and catalytic converter by adding a catalytic converter cleaner to your gas tank. This will break down the buildup in the catalytic converter, resulting in a cleaner vehicle.
Examples of catalytic converter cleaners include Cataclean, Xylene, Toluene, and Lacquer Thinner.
It is recommended that you clean your catalytic converter about four or five times a year.
