No, it is not safe to keep a gas can exposed to direct sunlight. Gasoline is a flammable liquid that can release vapors, and exposure to sunlight can increase the temperature inside the can, potentially leading to a buildup of pressure. This pressure increase can create a hazardous situation, increasing the risk of a fire or explosion.
Additionally, prolonged exposure to sunlight can cause the gas can to deteriorate and weaken over time, potentially leading to leaks or other structural failures.
To ensure safety, it is recommended to store gas cans in a cool, well-ventilated area away from direct sunlight, open flames, and sources of ignition. It's also important to follow local regulations and guidelines for the proper storage of gasoline or other flammable liquids.