The map details gas available based on location. It also shows how likely certain stations are to run out of gas within the next two hours, and if stations are almost out of stock.
That way, you don't have to waste gas trying to find gas. And you can also avoid getting ripped off on Craigslist by paying up to $25 a gallon for gas.
Google Now only works on Android phones running the latest version of the operating system called Jelly Bean.
The map is also available on the web for those without Jelly Bean-equipped devices.
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