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Why not spark plug used in diesel engine?
I have a question. Why is a spark plug not used in a diesel engine?
That's a great question! One of the major reasons is that diesel engines operate using a different combustion process than gasoline engines. In a diesel engine, the heat generated by the compression of the air inside the cylinder is what causes fuel to ignite, whereas in a gasoline engine, the spark from the spark plug ignites the fuel-air mixture.