How long is the shelf life of gasoline in a car?

[StJace]

Gasoline in a car has a shelf life of three months. Below are specific details about gasoline: Expired gasoline: When stored for a long time, gasoline undergoes severe oxidation, forming gum. This gum can cause valves to stick and decompose into carbon deposits at high temperatures, which then settle on fuel system components, leading to poor engine performance. The octane rating of gasoline decreases as light components are lost and gum content increases, thereby reducing its anti-knock properties and making it highly likely to cause engine damage. Precautions: It is best to store gasoline in metal containers with tightly sealed lids to prevent gasoline molecules from escaping. The storage container should be placed in a cool, well-ventilated area away from fire, electricity, heat sources, and where it is unlikely to be knocked over.