What Causes a Strong Gasoline Smell During Cold Start?

[DelTheo]

Here are the reasons why there is a strong gasoline smell during a cold start: 1. Unstable gasoline quality: Gasoline may become contaminated during transportation, and impurities from storage tanks can mix into the gasoline, significantly affecting its quality. 2. Reduced air quality: High levels of pollutants in the air can lead to insufficient oxygen for proper gasoline combustion. 3. Unstable power supply: The car engine relies on the electric motor for startup, and the starting system consists of the battery, ignition switch, starter relay, and starter motor. Its function is to convert the battery's electrical energy into mechanical energy to start the engine. An unstable power supply can result in reduced ignition efficiency or weak spark intensity, preventing the atomized gasoline from burning completely. As a result, a strong gasoline smell may be present.