What to Put in Gas Tank to Ruin Engine? Welcome to the Madness!

Have you ever wondered what could be the worst thing to put in a gas tank that will damage or stall the engine? If you are a car geek, these weird questions definitely bug you sometimes. Either you want to experiment or play a prank on someone you hate (we advise against it, though), you have to know for sure what to put in gas tank to ruin engine.

Let’s be familiar with some engine-wrecking ingredients and their effects.

What to Put in Gas Tank to Ruin Engine?

The answer is – there are several ingredients that you can use to do that. Some will just stall the engine and some others may damage or corrode its components. Let’s find out how to ruin a car engine through the gas tank:

how to ruin a car engine through the gas tank
Sugar will stall the engine.

The sweet little sins!

If you are just mischievous and does not really want to destroy the engine, use sugar or any other sweet, sticky liquid. Sugar in a gas tank is an urban legend and it will clog up the fuel filter, just like other sticky sweet liquids such as honey, molasses, waffle syrup, pancake syrup, and similar things. Sugar does not get dissolved in gasoline. So, even if some sugar get sifted through the fuel filter and passed through the fuel line, it will sit at the bottom of the tank. These ingredients won’t do major damage to the engine but will stop it after a while. You have to clean the filter, fuel pipe, and the gas tank to remove their traces from the system.

Check out the video below to see more details

How to destroy an engine with bleach?

What to put in gas tank to ruin engine? Mixing gallons of bleach with the fuel is the perfect recipe for disaster! Never put it in your gas tank unless you are suicidal or want to destroy your car for some weird reasons. The vehicle will run at first but will halt altogether when there will be no trace of fuel in the tank. If you leave it too long inside the fuel system, it will corrode and cause rust to several engine components because it contains chlorine – a highly corrosive oxidizer.

Let’s watch what happens if you fill up a car with bleach

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How to destroy a car engine undetected? – Pour water!

Seems confusing? Why would something ‘normal’ like water destroy an engine? Take the cue – anything that is not fuel is harmful to an angine. You will be surprised to know that more than 90% of bleach is water, and it still is detrimental to the engine. So, mixing water into the fuel will create the same effect, except for the corroding and rusting part. If you are unaware and keep driving, the car will run like a wild horse and can actually detach the engine from the engine mount.

worst thing to put in a gas tank
Putting the wrong fuel is also harmful.

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Is there anything else to add to this list of what to put in gas tank to ruin engine? Yes! You can also try hydrogen peroxide and wrong fuel. Many people use the peroxide as an additive, which is a big mistake because it is a reactive ingredient. On the other hand, putting the wrong fuel might not do any major damage but your car won’t start at all and even if it starts, the performance will be poor.