What To Put In Gas Tank To Ruin Engine?

Have you ever pondered What To Put In Gas Tank To Ruin Engine? These odd inquiries will occasionally irritate you if you are a car nerd. If you want to experiment or pull a joke on someone you despise (which we do not recommend), you must know exactly what to put in the gas tank to destroy the engine.

Substances That Will Destroy A Vehicle’s Engine

Substances That Will Destroy A Vehicle's Engine

The most damaging compounds to a vehicle’s engine include:

  • Coke
  • Water
  • Put Too Much Oil
  • Bleach
  • Salt
  • Sugar
  • Urine
  • Brake Fluid
  • Hydrogen Peroxide
  • Wrong Fuel

Bleach Sugar Water Brake Fluid Hydrogen Peroxide

Most of these compounds are unlikely to enter your vehicle’s petrol tank. However, you must be cautious about a few because they can sneak into your car without your knowledge.

Destroying the gas tank is the simplest way to kill a vehicle utterly. Since a gas tank is designed to function only when it contains gasoline, putting anything other than fuel in it will ruin it. However, the substances listed below are the most effective.

How To Destroy An Engine With Bleach?

Bleach will destroy a car’s gas tank the quickest. It will quickly corrode the metal and rubber components of the vehicle, eliminating it from the inside out.

Bleach can still be used in a vehicle’s gas tank, but only for a limited time. Bleach is primarily composed of water and chlorine. Typically, automobile gas tanks contain residual fuel. When gas leftovers come into touch with bleach, the mixture becomes hazardous.

As the mixture oxidizes, it becomes extremely corrosive, and a reaction known as “pre-burn” occurs before the mixture reaches your engine. The pre-burn process causes the bleach to corrode your vehicle’s parts, causing them to malfunction or fail.

How To Destroy An Engine With Bleach?

Two primary ways to add bleach to a vehicle’s petrol tank might damage the engine. First, pour approximately half a gallon of bleach into the gas tank and drive the car for several hours. This will cause the bleach to spread throughout the engine and corrode the components. Eventually, the engine’s condition will render it inoperable. The vehicle will stall and refuse to restart.

The second procedure involves pouring a gallon of chlorine bleach into the gas tank. The tank should contain a majority of bleach and a little gasoline. The engine will, after that, be entirely wrecked after approximately five to ten minutes of driving. It takes a substantial amount of bleach to damage an automobile engine irreparably.

Thankfully, there is a solution to prevent the bleach from causing excessive engine damage. If you suspect that bleach has been added to your gas tank, you can flush the tank and apply a biofuel additive. This material will absorb bleach residue and properly clean your gas tank.

How Sugar Can Ruin A Car Engine?

A small quantity of sugar will render the engine inoperable, but it may be cleaned. However, much sugar might destroy the machine, necessitating replacement. Adding sugar to a gas tank will cause the engine to become stuck effectively.

Sugar doesn’t dissolve in gasoline as it dissolves in water or other liquids. Consequently, the granules will continue to float in the tank as gas is added. Following this, the sugar granules will be sucked into the gasoline pipes. The fuel system will become clogged, and gasoline will have difficulty reaching the engine and propelling the vehicle. In addition, sugar grains might collect in one location of the car and produce even more significant issues.

Typically, if sugar is placed into the gas tank, it will collect in three primary locations:

  • The gas pump
  • The gasoline filter
  • The gasoline injectors

Each of these components is essential for ensuring that gas enters the car’s engine, and sugar prevents this from occurring. This will prevent the car’s engine from starting again. A couple of cups of sugar in the gas tank will not cause too much damage to the vehicle, but it will need to be fixed.

However, if a considerable quantity of sugar is poured in, the car is essentially ruined. This is improbable, as an entire bag of sugar would have to be dumped in, yet it will still wholly damage your vehicle.

If sugar gets into your car but is not enough to fully gum up your engine, the best solution is to clean the following components:

  • Fuel filter
  • Fuel pipe
  • Fuel tank

A technician must clean and fix each of these components to ensure no residue remains. If the sugar blockages are extensive or have hardened, the mechanic may also need to replace the engine. If the parts cannot be cleaned or fixed, it is advised to begin searching for another vehicle.

How Water Ruins Car Engines?

The substance most likely to enter your gas tank without your knowledge is water. It can enter the gas tank if you fill up during a rainstorm or if condensation accumulates within the tank.

Around a cup of water is typically sufficient to damage a car’s engine entirely. The most common way that water can enter your vehicle’s gas tank is by condensation. A rapid shift in temperature or humid conditions might cause condensation in the gas tank. If you fill up your gas tank during a rainstorm, water can also enter your vehicle, although only a tiny amount can enter this manner.

The final way that water can enter your gas tank is if you fill it with gasoline that has been diluted with water. Since a few gallons will be poured into your vehicle’s tank, this is more likely to cause harm. Since water is not explosive and cannot start the engine, diluted gasoline will make it more challenging to start your vehicle. If the gas comes from a decrepit gas station or your automobile has trouble starting, the fuel is likely diluted.

How Water Ruins Car Engines?

Water is also heavier than gasoline, so it will settle to the bottom of the tank, where it may quickly be drawn into the engine through the pipes. The water will cause many engine and gas tank components to corrode. This can result in the engine having trouble starting and possibly smoking.

If water has gotten into your gas tank, the most straightforward remedy is to flush the tank and replace the gas. If a small quantity of water has gotten into your tank or you put watered-down gas into your vehicle, the most straightforward approach to fix it is to flush the tank and replace the gas.

Drain the tank and add a tank cleaning solution to flush the gas tank. However, adding cleaning is optional and only recommended if there is a substantial volume of water in the tank. Once the tank has been thoroughly cleansed, you should refill it with standard gasoline.

If a significant volume of water has entered your tank, you should seek professional assistance. If you have attempted the following steps and your vehicle is still malfunctioning, you should contact a professional mechanic.

How To Destroy The Motor With Brake Fluid?

Brake fluid is a chemical designed to maintain the proper operation of a vehicle’s brakes. The oxygen sensors will become contaminated if it is poured into a gas tank. However, this only occurs when substantial fuel is added to the gas tank. A considerable quantity of gasoline will dilute the brake fluid.

Brake fluid facilitates the passage of weight from the brake pedal to the vehicle’s brakes. If you pour the liquid directly into your vehicle’s gas tank, it will not have the same effect. By polluting the oxygen sensors, typically silicon-based sensors, brake fluid can render a vehicle’s complete fuel system inoperable.

The oxygen sensor measures the number of exhaust gases passing through the engine. If this becomes contaminated, it will process these gases more slowly and may produce an accumulation of exhaust gases. This can then lead to the engine overheating and failing to start.

Brake fluid frequently contains phosphorus or zinc compounds, making silicon-based sensors particularly vulnerable. If it comes into contact with a silicon-oxygen sensor, it will become contaminated more quickly and cause engine difficulties sooner.

Even a modest amount of brake fluid, roughly one cup, can do this. But if there is only a tiny amount of gas in your tank, there is no cause for alarm. A small amount of brake fluid will gradually dilute in a large quantity of gasoline.

If a more significant quantity of brake fluid, such as a whole bottle, is put into the gas tank, it will cause substantial engine damage. If this occurs, you should take your vehicle to a competent mechanic so they can flush the gas tank and do any necessary engine repairs.

The only way to determine if the brake fluid is in the gas tank is if the engine malfunctions. Several of the most reliable indicators of engine trouble include:

  • Stalling
  • Smoking
  • The engine management light is on.
  • Your engine will not start.

If any of these problems occur, it is advised that you bring your vehicle to a skilled technician immediately.

Hydrogen Peroxide Destroys The Engine (Dangerous)

Hydrogen peroxide is the most hazardous liquid that might be poured into a vehicle’s gas tank. Not only will it cause substantial damage to your engine, but it can also ignite your engine and cause your entire car to explode.

Pouring hydrogen peroxide into your car’s gas tank will temporarily improve the vehicle’s speed and power. Hydrogen peroxide is exceedingly hazardous when it comes into touch with gasoline and heat, even though this seems intriguing and even exhilarating.

When gas and hydrogen peroxide are combined, the burn rate is boosted, meaning the gasoline will burn and supply fuel faster than it would on its own. However, your engine can only withstand a certain speed and power before completely wrecking.

If you add a modest amount of hydrogen peroxide into your gas tank, the engine will refuse to start at worst. A tiny amount equals around half a cup, and your vehicle should be inspected and repaired promptly. If you wait much longer, the cost of repairing your vehicle may grow substantially.

If a significant amount of hydrogen peroxide enters your car’s gas tank, you may as well begin shopping for a replacement vehicle. Excessive hydrogen peroxide will ignite and explode your car’s engine, which is substantially more dangerous.

The best way to determine if your gas tank contains hydrogen peroxide is by sight. Since hydrogen peroxide is heavier than gasoline, it will sink to the bottom of the tank and be highly visible. Additionally, it has a subtle blue hue, making it even easy to recognize. If you notice even a tiny amount of hydrogen peroxide in your tank, you should immediately take your vehicle to a mechanic to have the tank drained.

Frequently Asked Questions

Que 1: What Should I Mix With Petrol To Permanently Damage The Engine?

Using ethanol and non-ethanol gas together can damage your engine. Your engine, your fuel system, and more car components in your vehicle may suffer permanent damage if you miscalculate the proportions or keep using the mix for too long.

Que 2: How Does A Fuel Tank Get Damaged?

Ans: If you suffer a crash, or travel too quickly over a speed bump or sudden dip in the road, your fuel tank could become damaged. This could lead to a potentially dangerous fuel leak. Of course, a severe fuel leak would be noticeable by a puddle of gas on the ground under your car after sitting for some time.

Also Read: – How To Fix A Car Battery Leak: A Step-By-Step Guide


To sum it up, it is important to be aware of what should never go in your car’s gas tank. Any type of liquid, food product, and other hazardous material can ruin your engine. Therefore, unless you want to break the bank from expensive repairs or replacement costs, stick to purchasing unleaded gasoline for your gas tank.

This can ensure that your engine will stay clean and last for many years. Additionally, anyone who handles gasoline needs to be especially careful as this material is highly flammable and can pose a serious threat if not handled properly. All in all, take the necessary precautions such as wearing plastic gloves when handling fuel and keep all toxic materials out of the automobile’s gas tank. Following these simple measures will help you save money and protect your vehicle from damage.

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I'm David, and I love cars - especially writing about them! I'm the owner of Carwalls.org, where I write car reviews and offer advice on car technical issues. My passion for cars started at a young age, when I would help my dad work on our family's vehicles. These days, I spend most of my time test-driving new models and researching the latest automotive technology. I'm always looking for a new challenge, so be sure to check out my website for the latest in car reviews and news. Thanks for reading!


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