Take This Quiz To Find Out If You’re A Car Engine Expert!

What is the difference between gasoline and diesel engines?

Retry Correct Incorrect Diesel engines use compression heat to ignite the fuel. So, they need a heating element, or glow plug, as a way to help start the process on a cold day.

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Arterra/UIG via Getty Images

Arterra/UIG via Getty Images

What is the difference between gasoline and diesel engines?

• Gasoline is two stroke, diesel is four
• Gasoline engines need cooking oil, diesel engines can only use diesel
• Gasoline engines use a spark plug, diesels use compression to ignite the fuel
• Gasoline engine pistons are shaped in a square, diesel pistons are in a circle