Crying Gasoline! At 16 seconds in, to the 31, the tears of gasoline are most visible and prominent. This is called the Marangoni Effect and this video I filmed is the ONLY occurrence of this phenomenon on the internet full stop. The effect has been shown in wine, called "wine tears" but never in gasoline. I would postulate that the 10% ethanol that is added to gasoline allows for this effect to occur.