[ridgeguy]

Gasoline doesn't do that. Perhaps you're thinking of the following?

What it does do is slowly polymerize, becoming useless as an ICE fuel in time, typically in a year or two. This is why backup generators should run on propane, which has no degradation mechanism.

[duped]

No, I'm thinking of improperly stored gasoline evaporating and combusting.

[stirfish]

I remember something about someone trying to do a photo shoot with candles in abandoned cars in a junkyard

Edit: https://petapixel.com/2015/06/11/explosion-at-junk-yard-phot...