Here's why:
* Diesel engines work differently: Instead of using a spark to ignite the fuel, diesel engines rely on compression ignition. The air inside the cylinders is compressed to such a high pressure and temperature that the fuel injected into the chamber spontaneously ignites.
* Glow plugs: Diesel engines do have glow plugs, which are small electric heating elements that preheat the combustion chamber during cold starts. This helps the engine start more easily when the air inside is cold and less likely to ignite the fuel.
So, while diesel cars don't have spark plugs, they do have glow plugs, which play a crucial role in starting the engine.
