@gearshift_hq: Ever wondered why diesel engines don’t need spark plugs? ⚙️ Unlike gasoline engines, which use a spark to ignite the air-fuel mixture, diesel engines rely on compression ignition. As the piston compresses air inside the cylinder, the temperature rises dramatically. Diesel fuel is then injected into the hot, compressed air, causing it to ignite without a spark. This is one of the fundamental differences between gasoline and diesel engines, helping explain their efficiency and ability to produce strong torque under heavy loads. Diesel engines may still use glow plugs to assist with cold starts, but these don’t create the spark that initiates combustion. Did you know how diesel engines ignite fuel without spark plugs? FOLLOW ➡️ @gearshift.hq for more daily car, tech, and entertainment content! #DieselEngine #AutomotiveEngineering #EngineTechnology #MechanicLife #HowEnginesWork