Everything goes bad, but usually canned stuff wont go bad for agesss. As long as you drink it within like, a few months or something you should be fine
From yahoo answers haha: Energy drinks are full of preservatives and under pressure, so much that they will never go bad.
As long as you drink them within like 2 months time i'm sure you're fine.Don't quote me on that though...
theyl be sweet. think about how long it takes for the drink to make it through the production line, into the shops, then to you. ifs its fine after that then im sure itd be good for awhile!