have bought coca cola classic at different locations and have been flat, coca cola sent a coupon to try n see if i would try again, used it on a different type of coca cola product and their was no problem. went back to coca cola classic, and same results, flat. never had this problem with any of the compition.so i guess it"s by-by coke . #ON CAN496340, 1 652 9 231 1c read full review »