How to distinguish between gasoline engine and diesel engine?

The main difference between gasoline generators and diesel generators is the following five points.

  • Fuel type: Gasoline engines use gasoline as fuel, while diesel engines use diesel as fuel.
  • Ignition method: Gasoline engines use spark plugs for ignition, while diesel engines use high-pressure injectors to inject fuel into the pre-ignition chamber, where it spontaneously ignites under high pressure and temperature.
  • Engine construction: Gasoline engines are usually smaller and lighter, while diesel engines are usually larger and heavier.
  • Exhaust color: Exhaust gas from gasoline engines is usually colorless or white, while exhaust gas from diesel engines is black.
  • Sound: Gasoline engines run with a softer sound, while diesel engines run with a duller sound.
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