I got my "free" mountain dew cans, it was all messed up and the cans were like exploded without leakage, looks like a heat issue, not sure.
They did send me a replacement, however I just checked and the "best by date" is 01/2016 w I think means really old stuff (less then 4 months old). Also there is no hechsher to be found. It looks like the OU symbol is not on all Mountain Dew cans, or maybe Mountain Dew nev had a hechsher? Can somebody chime in?