How to Ruin a Car Engine Through the Gas Tank – All That You Shouldn’t Do to Your Engine

One of the most developed industries is thought to be the auto sector. Despite all the improvements, a car’s engine might still be damaged. The gas tank of a car might damage the engine in ways other than by car experts or maintenance. Anyone with malicious motives may.

You should understand how to ruin a car engine through the gas tank if you own a vehicle. By simply placing something other than gasoline in your gas tank, you can help prevent someone from damaging your car’s engine.

Anyone can likely damage the engine by putting something other than gasoline in the gas tank. As we’ve already mentioned, other than gasoline, anything can damage or even wreck your engine. The engine can be damaged in a variety of ways by the gas tank.

By clogging up the gasoline tank, adding things like water, sugar, salt, sticky sweet liquids like honey, and more can easily ruin the engine. The engine can also be ruined by adding some brake fluid, some coke, urine, bleach, and hydrogen peroxide to the gas tank. Your car’s engine may suffer some damage if these parts are used.

It is bad for the engine of your car to put these parts in the gas tank. However, if you want to damage the engine of your automobile or any other car by adding some of these components to the gas tank, you can do so.

1. Putting Water In the Gas Tank

One ingredient you should put in the gas tank to damage your engine is water. It is a problem that needs to be resolved right away when it is found in a car’s gas tank. Your car’s engine will be ruined if you put water in the gas tank.

When pressure is applied, water does not change its volume. It might damage your car’s engine and seize up if it gets inside the cylinders. The engine is separated from the engine mount and the automobile cannot move quickly when there is a mixture of water and fuel in the gas tank.

Vehicles are always washed with water, but the engine can still be cleaned without it, therefore you must always be very careful to prevent water from entering the engine when washing your automobile.


Water in a plastic bottle by Ravitave / CC BY-SA 4.0. Water is one thing you should put in the gas tank to harm your engine. When it is discovered in a car’s gas tank, it is an issue that needs to be fixed straight soon. If you put water in the gas tank, the engine of your car will be destroyed.

Additionally, water can enter your gas tank from condensation inside the tank due to weather conditions or when you fill the tank at the pump.

What Quantity of Water Can Ruin the Engine If Put In the Gas Tank?

The quantity of water in the gas tank that can damage the engine may be something you’re curious about. Your car’s engine can be harmed by drinking an entire glass of water or even more. Unbelievably, even a small amount of water can cause major problems for the engine of your car. Water in the gas tank can harm the engine, therefore you should be aware of this at all times.

What are the Symptoms of Water In the Gas Tank?

The engine of your car suffers significant harm if there is water in the gas tank. The presence of water in your gas tank may result in engine failure and performance issues. If there is water in the gas tank, you should be prepared for these symptoms.

a.) Difficult Acceleration

One of the most common symptoms of water in the gas tank is rough acceleration. On occasion, the engine could mistake water for fuel. In the combustion chamber, the mixture of air and fuel will be extremely peculiar.

b.) Idling Issues

Water is not combustible, therefore if it gets into the gas tank, it will cause the engine to perform strangely. Idling problems, subpar performance, or sputtering are indications of this.

c.) Sudden Loss of Power

If you experience sudden surges in engine loss while driving, water that has combined with fuel could be the blame. The engine will struggle to compress the water, which will result in a measurable loss or reduction in power.

d.) Engine Misfires

When the water reaches the cylinder’s combustion chamber, you’ll probably notice a misfire. If there is water in the gas tank, the misfire will let you know.

e.) Steam Coming from the Exhaust

Water that is present in the combustion chamber will likely evaporate, producing steam. It may have water in the gas tank if you notice that there is a lot of odd steam coming from the exhaust pipe.

f.) The Check Engine Light Illuminates

The check engine light on your car is a sign of many issues. You can detect if there is water in the gas tank by just inspecting the engine.

Steps to Take If Water Is Found In the Gas Tank

The first thing to check is whether there is water in your gas tank. This is due to the engine damage caused by water in the gas tank. You must do the following to repair this:

  • The best and simplest method, although usually not the cheapest because it wastes fuel, is to replace the gas.
  • Displacement: Emptying the gas tank and filling it up with new, fresh gasoline is the easiest technique to get rid of water in the gas tank.
  • Get Specialist Help: A professional will help you identify the issue and find a workable solution for anything that might go wrong with your car. If there is water in your gas tank, a qualified mechanic can assist you.


Different types of sugar crystals by Romain Behar. Sugar is one substance that can be put in a gas tank to harm an engine. There is no doubt that it is bad in the gas tank and may cause engine problems. Sugar does not dissolve in gasoline. If you throw sugar in the gas tank, it will drop to the bottom. To put it another way, the sugar will remain in its sublimate state.

2. Putting Sugar In the Gas Tank

One ingredient that can be put in a gas tank to damage an engine is sugar. It is unquestionably bad in the gas tank and can lead to engine issues. Gasoline does not dissolve sugar. Sugar will sink to the bottom of the gas tank if it is dumped in there. In other words, the sugar will continue to be in its sublimate condition.

You will need to clean the filter, fuel line, and other engine components of your car if you have sugar in the gas tank. You should also be aware that any drink containing sugar can harm your car’s engine. Honey and syrup are two instances of sweet liquids.

What are the Symptoms of Sugar In the Gas Tank?

The gasoline filters in most cars are sufficient to prevent sugar from entering the engine. The system’s efficiency can be lowered if there is enough sugar in the gas tank to clog the filter.

When there is sugar in the gas tank, your car will display the symptoms listed below.

a.) Stalls In Engine

When you try to accelerate, your car can stall if the fuel lines are completely clogged. When idle, your car can also have trouble. The automobile may lurch when moving forward or when shifting into reverse when there is sugar in the gas tank, and it may stall right away once you resume.

b.) Acceleration Power Surges

Granules of sugar begin to clog the fuel intake lines when they are present in the gas tank. The block forbids the usage of a regular amount of fuel. There will therefore occasionally be sporadic power surges.

c.) Power Loss In the Engine

The engine would be unable to receive fuel. If there is sugar in the gas tank, the fuel supply will be cut off. As the car begins to slow down while you are driving, you will feel the lack of power in your car on the accelerator. A rough idle can also happen.

d.) The Vehicle Is Unable To Start

Your car’s engine would completely disconnect if there was sugar in the gas tank, and you would not be able to start it since there would be no fuel getting to the engine.

e.) Awful Performance

Assuming there is sugar in the gas tank, you will observe that your car behaves differently. This may be brought on by sugar clogging the fuel filters, which prevents enough fuel from passing through. You’ll start to notice that your car accelerates slowly as a result.

f.) The Tank Is Getting Less Fuel

Suppose you put less fuel in the tank since it takes much less fuel to fill the tank than it should because there is sugar in the tank.

Steps to Take If Sugar Is Found In the Gas Tank

For a car owner, learning that there is sugar in the gas tank can be extremely terrifying. Although clearing out the chemical could stop the car from being damaged, sugar can cause some problems. If the fuel tank of your car contains sugar, you must;

  • Replace all fuel filters: The sugar will first clog the fuel filter, which is responsible for removing solids. The fuel filter needs to be replaced right away, so call a professional.
  • Change the gasoline pump: if the sugar gets past the fuel filter, it will condense in the fuel pump. It will be necessary to replace the gasoline pump with the aid of a qualified mechanic.
  • Take the car to a Technician: If the sugar escaped the fuel filter and fuel pump, it will eventually settle in the fuel delivery system of the vehicle. After that, you should take it to a mechanic so they can clean and remove the gas tank.


The coke soda by Imprezes / CC BY-SA 4.0. Coke is one material that can be put in a gas tank to harm the engine. If you put Coca-Cola or any other soft drink in the gas tank of your vehicle, the engine will be destroyed. How many soft drinks are in the gas tank will determine all of this; too many can harm the engine. If Coca-Cola is put in the gas tank, the engine will become clogged and suffer damage.

3. Putting Coke In the Gas Tank

One item to place in a gas tank to damage the engine is coke. Coca-Cola and other soft drinks will utterly wreck your car’s engine if you put them in the gas tank.

All of this is dependent on how many soft drinks are in the gas tank; too many can damage the engine. Coca-Cola will clog up the engine and damage it if it is put in the gas tank.

Coca-chemical Cola’s composition can transform the entire mess into caustic silt that could choke the engine when it is combined with fuel in a car.

Steps to Take If Coke Is Found In the Gas Tank

If you discover coke in the gas tank, you must hire a qualified mechanic to assist you. The mechanic will assist you in diagnosing your vehicle and inform you of the extent of the engine damage.

The fumes your automobile emits will let you know if, by chance, someone has put coke in the gas tank. If the gasoline or exhaust gas appears to be neutral, you should inspect the gas tank of your car.

4.  Putting Excess Oil In the Gas Tank

Your car’s engine can be damaged by having too much oil in the tank. Your car’s engine has to be topped off with oil regularly to maintain it well-lubricated and protected from harm. However, if too much oil is put into the gas tank, too much harm might be done to the engine.

What are the Symptoms of Excess Oil In the Gas Tank?

Because of fluid thermal expansion and the pressure of the oil mixture, oil pans are specifically made to hold up to a specified volume of oil. Here are some warning signals that your car will display if the gas tank is overfilled with oil.

  • Thick White Smoke: If you are driving your automobile and notice a lot of thick, white exhaust smoke, the engine block may be burning extra oil.
  • Oil Leaks: your car is leaking too much oil? It could indicate that you overfilled the gas tank or that someone else put too much oil in the gas tank of your car.

What are the Consequences of Excess Oil In the Gas Tank?

Your car may suffer several consequences if you overfill the gas tank with engine oil. These are a few consequences of having too much oil in your gas tank.

  • The heads and tails of the crankshaft will be under pressure: To stop the oil from leaking, the crankshaft and the heads and tails couplers are responsible. In any event, putting too much oil in the gas tank might cause oil leaks because it puts excessive strain on the crankshaft and the head and tail couplers.
  • The engine wears out: If the oil is at the wrong pressure, the lubrication of the engine parts won’t be optimum, which could result in more engine wear.
  • The spark plugs become fouled: Spark plugs may potentially become contaminated with extra oil. If this occurs, the spark plug will malfunction and must be replaced.


Pouring too much engine oil into the gas tank by Aaberlanga / CC BY-SA 4.0. Too much oil in the tank can harm the engine of your car. Regular oil changes are necessary to keep your car’s engine well-lubricated and safe from damage. However, if the gas tank is filled with too much oil, the engine could sustain excessive damage.

5. Putting Salt In the Gas Tank

One of the ingredients added to the gas tank to damage the engine is salt. The foundation of the gas tank will gradually deteriorate if there is too much salt in it.

Salt crystals will enter the fuel pump and clog the fuel filter when salt and gasoline are combined. If this occurs, it’s possible that your car won’t start, its engine won’t run, and it will get hot.

When compared to other parts of your car, the engine may not be completely damaged by salt, but if it gets into the gas tank, it can result in a significant loss. Your car’s engine may lose power due to salt in the gas tank, and the tank itself may corrode.

Your engine might not be able to start up again as a result. Your automobile might begin to overheat if there is salt in the gas tank.

What Quantity of Salt Will Damage the Engine?

It is uncertain how much salt should be put in the gas tank to destroy the engine. Even if a pinch of salt in the gas tank will not affect the vehicle, it is still not a good idea to do so. If a lot of salt is put in the gas tank, the engine will be greatly impacted.

It is advised to clean the fuel tank if there is salt in the gas tank. You should empty your gas tank of all the fuel, and change the fuel filter, and the fuel pump. You might also see a qualified mechanic and ask them to assist you in draining the salt from the gas tank.

6. Putting Urine In the Gas Tank

Another substance used to damage the engine is urine, which is poured into the gas tank. The sole factor is the volume of pee added to the gas tank. The engine won’t be harmed by a small amount of urine in the gas tank. However, your car’s engine will not function well if there is a lot of urine in the gas tank.

If you see urine in the gas tank, you should clean the fuel filter and the fuel pump. Over time, you will also need to replace the fuel filter. Urine gradually harms a car’s engine.

7. Putting Bleach In the Gas Tank

Water and chlorine are the two main ingredients of bleach. It’s risky to drive a car with bleach in the gas tank. Bleach will corrode and wear away the rubber and metal part if it is present in the fuel system and engine parts. Bleach in the gas tank will have a quicker-than-normal effect.

You can covertly damage a car’s engine by adding bleach to the gas tank. Bleach will have enough time to corrode the engine if it is allowed to remain inside the fuel system and engine parts for a long period.

What Amount of Bleach Can Damage the Engine?

You must put the right amount of bleach in the gas tank and drive the automobile for a long time to effectively kill the car engine with bleach. Additionally, fill the gas tank with the entire gallon or container of bleach.


Salt in a bowl and salt shaker by Lexlex / CC BY-SA 4.0. Salt is one of the components that is put into the gas tank to harm the engine. If there is too much salt in the gas tank, the base will eventually deteriorate. When salt and gasoline are mixed, salt crystals will enter the fuel pump and clog the fuel filter.

If you discover that someone has filled your car’s gas tank with bleach, you shouldn’t start the vehicle; however, if you have, flush the entire fuel system.

8. Putting Incorrect Fuel In the Gas Tank

The likelihood of damaging your engine if you fill the tank with the incorrect fuel is too great. If you discover that you have put the wrong fuel in the tank, don’t start the engine since your automobile may be in danger.

If you accidentally put the wrong fuel in the tank, a qualified mechanic will be required to drain the tank and fuel lines.

9. Putting Hydrogen Peroxide In the Gas Tank

The presence of hydrogen peroxide in the gas tank of the vehicle will increase its power. It can accelerate it more quickly, but it might also damage the engine of your car. Depending on how focused it is on your car, it can damage it.

When gas and hydrogen peroxide are combined, the result resembles a nitrous oxide system. The combination of gas and hydrogen peroxide speeds up combustion and raises engine temperature.

If your car’s engine receives a power boost, it burns up and is destroyed. If you see hydrogen peroxide in your car’s gas tank, you should stop driving right away; however, if you haven’t yet begun, you shouldn’t start the engine.

10. Putting Brake Fluid In the Gas Tank

Does brake fluid have the potential to destroy a car’s engine?

There is no way to prevent this. If the brake fluid level in your automobile is close to the top of the gas tank, it might damage the engine and put you at risk.

As everyone is aware, brake fluid is a type of hydraulic fluid used in automotive hydraulic brakes and clutches.

Therefore, by keeping an eye on the brake fluid level, you can protect both the car’s engine and yourself.

General Steps to Take If Something Unusual Is Put Into Your Gas Tank

A sophisticated technique to destroy an automobile engine is to put anything in the gas tank. You can obliterate a car’s engine with a variety of chemicals by adding them to the gas tank. You should be aware of what to do if someone has placed something in the gas tank intending to damage your car’s motor.

The following advice will help you if someone accidentally puts something in the gas tank:

1.  Never Drive Your Vehicle

Anything in the gas tank can clog your car’s gasoline filters, so you shouldn’t drive if you know for sure that it contains something. Your car will eventually sustain lasting damage as a result of this.

A hydrogen peroxide solution by Multicherry / CC BY-SA 4.0. The vehicle’s power will rise if hydrogen peroxide is present in the gas tank. It can speed it up, but it also runs the risk of harming your car’s engine. Depending on how intently it is focused on your car, it might hurt it.

Before turning on your car’s engine, it would be quite helpful if you discovered something in the gas tank. Considering that it will keep you out of any hazardous situations and protect your vehicle.

2.  Write Down Every Detail

It’s not humorous if someone puts stuff in your gas tank. You ought to pay closer attention to your car as a result.

Write down the location, the symptoms, the time, and the date as soon as you find something in your gas tank since these data can help you persuade your auto insurance agent.

Your notes can assist the repair technician in understanding the precise details.

3.  Use Quality Gas Tank Doors That are Protected

As a mechanic, I work on a lot of vehicles, and I consistently see that the owners didn’t give the gas tank door any thought. Even some car owners choose to open the gas tank door instead of not using it. But each time you fill up your automobile with fuel, you should lock the gas tank and inspect the gas tank door.

You should get gas tank doors as soon as possible if your gas tank door is broken or inoperable. For your car, you will receive some extremely secure and robust gas tank doors.

4. Speak with Your Auto Insurance Agent

It’s time to notify your auto insurance provider if you’re positive that someone put something in the gas tank to damage your car’s engine.

A professional in automotive gas tanks will be sent by your auto insurance agent to examine your vehicle. The insurance representative will assess the damage and provide you with a cost.

Your car insurance provider might pay for the price of a brand-new gas tank replacement. Make sure the auto repair business knows you have permission from the company that issued your car when you drop it off.

Any substance other than petrol in the gas tank might harm your vehicle and sabotage the engine. Because of this, if you are aware of anything in the gas tank, don’t lose time and act accordingly.

Which are the Engine Ruining Techniques Without Evidence?

Bleach in the gas tank will cause an engine to fail covertly. Because bleach contains a lot of chlorine, putting it in the gas tank will gradually cause the engine’s various components to corrode.

Any liquid, excluding fuel, can silently obliterate an automobile. This is true not just of Bleach. You can wreck a car engine without being caught if you can fit something in the gas tank and the owner won’t ever know.

Because you may add too much oil to a car by just opening the hood, it is also possible to do so without being seen. To put too much oil in the car, there are no additional parts or equipment required. You read earlier in this article how an engine might be ruined by using too much oil.


A typical car engine by Carolla / CC BY-SA 3.0. By placing something other than gasoline in the gas tank, anyone may most likely harm the engine. Anything, besides fuel, has the potential to harm or even destroy your engine. The gas tank has several potential effects on the engine.

The car will be ruined if you put too much oil in it. Without any proof, putting too much oil in the automobile or putting bleach in the gas tank can both harm it.

The Conclusion

You can covertly add any liquid to the gas tank to covertly kill the engine. You can also add water to the gas tank, ruining the car’s engine completely and leaving no trace.

One of a car’s vital components is the gas tank. Anything other than gasoline must be put in the gas tank if you don’t want the car’s engine damaged. The car’s engine could suffer significant damage as a result.

If placed in the gas tank, every component that has been covered in this page will likely damage the engine. To avoid entirely damaging your car’s engine, they should always be attended to right away.

If any of the items listed in this article are found in your gas tank, you should hire a qualified mechanic to assist you in solving the issue because numerous engine components will need to be replaced.

A typical car engine by Carolla / CC BY-SA 3.0