What to Do If You Accidentally Fill a Gasoline Car with Diesel?

[VanSimon]

If you accidentally fill a gasoline car with diesel, do not attempt to start the engine. First, drain the diesel completely and refill with gasoline. If you realize the mistake after driving for some time, the car may exhibit symptoms such as severe shaking or poor acceleration. In this case, immediately turn off the engine, stop the vehicle, and call for a tow truck to take the car to a 4S shop. There, the diesel will be drained, the fuel system will need to be cleaned, the gasoline filter replaced, and a comprehensive inspection performed. After the inspection, refill the tank with gasoline. Diesel engines do not have spark plugs; they rely on compressed air to raise the temperature to the ignition point of diesel, which has a lower auto-ignition temperature. If diesel is added to a gasoline engine, it will auto-ignite before the spark plug fires, causing combustion inside the cylinder, which can lead to severe consequences. Additionally, gasoline engines have smaller fuel injectors, which cannot fully atomize diesel, resulting in incomplete combustion and insufficient power. Over time, carbon buildup in the engine will increase dramatically, potentially clogging the fuel injectors.