Why does the car smell strongly of gasoline after refueling?

[SawyerDella]

When the fuel tank is overfilled, gasoline may flow into the carbon canister through the fuel line. The carbon canister is designed to absorb gasoline vapors. If it becomes saturated with gasoline, excessive gasoline vapors may escape through the vent holes, especially when the air conditioning is in external circulation mode, making the gasoline smell particularly strong. Here is some related information about car refueling: 1. Precautions for car refueling: (1) Try to stick to a fixed refueling station. (2) It's better to refuel in the morning or evening, avoiding the midday sun. (3) Refuel by the liter rather than by a fixed amount of money. (4) Before a long trip, the more fresh fuel you have, the better the acceleration feels at high speeds. (5) For city driving, fill the tank halfway or two-thirds (adjust based on location). 2. Four safety rules for refueling: (1) Turn off the engine. (2) No smoking. (3) Do not use your phone; leave it in the car or turn it off. (4) Do not re-enter the vehicle while refueling.