Gas can with rotatable spout - GIF

Gas can with rotatable spout.

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Previously:

12th century three-spouted oil lamp - photo
Oil can opener and spout - GIF
Paint can spout from tape - GIF

At least someone knows how to make a gas can presently that actually works. It might be pricey.

And once the can has sat on the shelf filled with the cheapest grade it will all leak out by the time the can is 6 months old because the o ring seal failed.