Enter to Win a FREE 6 Pack of Crystal Pepsi!! We brought Crystal Pepsi back, and you could be one of 13,000 lucky fans to win a crystal clear 6-pack! Sweeps open on 12/10/15 at 12:00:01 p.m. ET and end on 12/11/15 at 11:49:59 p.m. ET. Limit 1 winner per household.