Why the gasoline explode in a gas tank when cap is removed?

Gasoline doesn't explode in a gas tank when the cap is removed. There is a common misconception that gasoline vapors are highly flammable and can easily ignite, leading to an explosion. In reality, gasoline vapors are not flammable until they reach a certain concentration in the air. Additionally, the presence of the gas cap helps to maintain a stable pressure inside the tank, preventing the vapors from reaching the necessary concentration for ignition.