What happens to your gas car if you accidentally put in diesel?

Accidents happen

It’s pretty much the biggest shock you can get at a gas station: finding out you’ve filled your car with the wrong type of fuel. We know it’s bad for your car to put diesel in a gas car, but just how bad is it exactly?

There’s quite a big difference between the two types of fuel.

Big difference

You can get both at the gas station and if used correctly, you can drive a good amount of kilometres before having to visit one again. When you put it like this, it sounds as if there’s not much of a difference between diesel and gas, but that’s not true at all. Jake McKenzie from Auto Accessories Garage explains to Reader’s Digest: “Diesel is a much thicker substance than traditional gasoline and it is ignited by pressure rather than spark-ignition.”


A few accidental litres of diesel in your gas car can have negative consequences already. “Because of its thickness, even a small amount of diesel fuel in a gas vehicle can clog the engine’s fuel injectors, filters and lines,” Jake explains.

Want to know what you should do if you accidentally put diesel in your gas car? Go to the next page!

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