Is It Good To Put Lacquer Thinner In Gas Tank?

Many car owners prefer to use lacquer thinner in gas tank due to its instant effects. Yet, have you ever wondered whether it is good or harmful to apply it to the car engine? This blog will provide you with a satisfactory answer to such confusion.

We will cover both advantages and disadvantages to access the big picture. As a result, better knowledge guides you on better solutions to keep up the good quality.

Also, there are techniques and viable alternatives to lacquer thinner in the blog. Thus, you can expand the range of selections. Please read on for detailed information!

An Overview Of Lacquer Thinner

Lacquer thinner
Lacquer Thinner – Credit by Flickr

What is Lacquer Thinner?

People also call it by the name of cellulose thinner. It combines various solvents that can dissolve some kinds of resins and plastics.

The formulation of such a modern thinner follows the regulations of low-VOC. For this reason, it has a strong and noxious odor. You should wear a specialized mask to protect your health when using it.

Its combustible ingredients are another thing for consideration. So, you should comply with the safety standards to avoid unfortunate accidents.

Usages Of Lacquer Thinner

It is an excellent ‘candidate’ for cleaning and removing spots on surfaces. However, you cannot just use it in every material. The lack of essential knowledge can lead to regrettable damages! 

In this section, we walk you through the common uses and some notes. Please scroll down for details about the best practices of lacquer thinner.

  • As A Removal Of Rust And Paint Drips

The inclusion of kerosene makes lacquer thinner, ideal for eliminating paint spots or rust. It can help to gain back the sheen of the surfaces! 

However, the strong effect can turn its benefits into unexpected destruction if you let it sit on the surface for a long time.

Therefore, you should observe the outcomes and remove the lacquer before it impacts the coat of the top! 

There is the fact that you can use lacquer thinner for cars. It accelerates the process of removing stains on an automobile.

Yet, the car paint will never be the same after applying the cellulose thinner to it as the solvents can dissolve the original paint. Thus, you need to be quick and meticulous.

  • As A Degreaser

It is common sense when tar or grease sticks to a car or motorcycle. The looks will become less appealing due to the dirty paints.

The solvents can ease you into the process of degreasing these stains. Yet, be careful with the harmful fumes and intense side effects.

You can look at some alternatives that share the same-same functions and have fewer hazards to our health. This topic will be in the finishing touch of this blog!

  • As A Lacquer Thinner Catalytic Converter Cleaner

A catalytic converter plays an important role in the exhaust system of an automobile. Its good condition can maintain smooth operations. Besides, it saves the costs of frequent impairments or replacements! 

Don’t worry about how to clean a catalytic converter with lacquer thinner. It is a simple process that everyone can apply for!

Pour the appropriate amount of pure solvent into the half-full tank. Then, activate your engine code at 2500 RPMs within 30 minutes to finish the cleaning process.

Is It Good To Put Lacquer Thinner In Gas Tank?

lacquer thinner in gas tank

The question might be confusing because we have mentioned putting lacquer thinner in gas tank to clean catalytic converter. People are inclined to use it for its instant effects.

Things can go well if we abide by the proper amount and standard process. But is this thinner a recommendation? We are afraid to say no!

It may not produce any devastating impacts in the short-term run. Yet, you can spot the unpleasant colors and smells of emissions.

Gradually, the decreasing power of the engine will become more obvious by the severe effects on engine components!

Please keep reading the blog. The following content covers why and how the solvent profoundly impacts the performance and maintenance of a car!

Why Can’t We Use Lacquer Thinner To Clean Gas Tank?

It might not be a bad idea if you know the right ways of application.

Yet, this section dissects the harm of using lacquer thinner to clean the catalytic converter. The starting point is to take a look inside the mix of substances.

Catalytic converter
Catalytic converter

Then, you can understand the causes and profound impacts on our fuel system cleaner.

The Chemicals In Lacquer Thinner

The blend can eliminate the dirt on paint and even the paint coat. You now can find the explanation for its turbocharged power of corrosion through its ingredients!

There is a wide range of materials, such as methyl ethyl ketone, acetone, toluene, xylene, etc. The ratios vary according to the criteria of different manufacturers.

Meanwhile, rubber and plastic contribute the most to forming an automobile fuel system. These ingredients are sensitive to the acetone compounds of thinner! 

Also, its ingredients are flammable. When an engine is on, the heat inside tends to increase. It creates the ideal environment for the lacquer to combust exhaust valves and even the converter’s core.

Hopefully, the information above simplifies why the pure lacquer thinner on a car’s fuel system is not a good idea.

The Effects

  • Immediate Reaction

Many car users still prefer cleaning catalytic converter with lacquer thinner due to the instant removal. A small proportion of the blend does not cause any big problems.

Nonetheless, the automotive produces more smoke in exhausts and more noise from activating engines. We should take such smoky exhaust as early warnings! 

It is acceptable to use it as a one-off or last resort. Indeed, overuse can destroy a car from within! 

  • Long-Term Damages

It will lead to many problems if lacquer thinner clean catalytic converters. The knowledge about the corrosive materials can inform us of the fact beforehand.

The composition inside the fuel system cleaner suffers the destruction by the toxic compounds.

If the situation lasts long, the obnoxious scents and colors of emissions are not the only consequences. The whole engine will also deteriorate.

The initial goal is to freshen or renew the fuel system. The misuse of substances causes the opposite effects to our expectations. A car will become slower and weaker with its sluggish engine.

Even a small leftover or the repetition of using the solvent to clean out the emission device leads to many issues. Instant effects can cost you more in the long-term run.

For this reason, it is time to look for optimal solutions to get rid of such a poisonous chemical from a car’s fuel tank. Please scroll down for more interesting and useful information!  

How To Remove Lacquer Thinner From Gas Tank

Remove Lacquer Thinner From Gas Tank

We are now fully aware of the unexpected outcomes. Yet, this mixture still gains wide currency among drivers and mechanics thanks to the edge of instantaneous effects.

Using such an obnoxious chemical needs knowledge about how to remove it! Unlike its easy usage, the process of eradication can be extremely sophisticated.

Thus, we still do not recommend this solvent, although using a proper amount is fine. It can cost you money, time, and effort to remove it.

The following content walks you through recommended actions to prevent even the smallest fuel system issue and catastrophic damage.

The steps include:

  • Turning off the engine and making a car’s gas tank empty.
  • Observing the status or conditions for optimal actions.
  • If things get worse, there is the probability of replacing the fuel filter and fuel pressure regulator.
  • Changing the whole old fuel into the new one.

The easy-to-do guidance above provides a bare essential for DIYs. However, if you would love the guarantee of performance and safety, the support of a reliable mechanic is ideal.

The Recommended Alternatives

In this section, we walk you through some practical alternatives. Consequently, we can save ourselves from the dependence on the instant but obnoxious blend! 

There are two approaches to deep cleaning the fuel pump and vehicle exhaust system.

Without Any Corrosive Substances

This method requires the experience of taking apart and assembling the car parts. If you are familiar with the steps, it is our top recommendation.

The prerequisites are the elemental tools and skills. After taking a catalytic converter from the car, soak it in the bucket of soap and water.

It usually takes you a night to get rid of all the dirt in a car converter. Subsequently, you need to assemble it back to the vehicle! 

With A Specialized Converter Cleaner

This method will cut down on your time and effort. Rather than lacquer thinner, you can use Cataclean, paint thinner, mineral spirits, etc.

The instructions for usage might vary among brands and ingredients. Yet, the common steps might follow the same as below.

  • Decrease the tank of gas to around ¼ amount of the whole.
  • Pour the cleaner’s liquid into it.
  • Drive the vehicle at a normal speed within 15 minutes or activate the engine for half an hour.
  • Fill the tank with fuel or gasoline and drive your car as usual.

The chemical reaction inside between the substance of cleaner and fuels can discard the dirt from your car’s converter. It is a simple description of its operation.


This blog provides a clear-cut conclusion on whether you should put lacquer thinner in gas tank. There might be various types of engines, but the effects of such toxic chemicals are universal.

Thanks to a better understanding of how much a vehicle’s fuel tank pressure sensor suffers from such a corrosive material, we find it crucial to find the best alternatives.

We want to support you with useful knowledge about the solvents for cars so that you can minimize the risks of engine wear and engine failures.

Hopefully, you can find the best solution through a simple explanation and practical suggestions!

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