Never was a DP fan. But Open the can. If its not flat, drink it.

You can also use them in some of the recipes for yard/garden treatment recipes of Jerry Baker. Here is one recipe using coke (or any soda pop... doesn't matter):

The recipe came from Tim Heffron, a former groundskeeper at a golf course. All you need are five common household ingredients and a 10-gallon hose-end sprayer. This recipe can be modified slightly for other less dry climates, but for areas like Colorado it works wonders. And it's a heck of a lot cheaper and more effective than the store-bought mixes.

You will need:
One full can of regular pop (any kind-no diet soda)
One full can of beer (no light beer) 12oz
1/2 Cup of Liquid dishwashing soap (do NOT use anti-bacterial dishwashing liquid)
1/2 Cup of household ammonia
1/2 Cup of mouthwash (any brand)

Directions:
Pour into 10-gallon hose-end sprayer (other sizes will work too)
In high heat, apply every three weeks.

I used to have a recipe for a Dr. Pepper cake. For that, or for the garden recipes, it doesn't matter if they're flat.

What did we do before they started listing these dates on our cans of soda??? We drank them and didn't know that they were out of code...
I would say to drink it...that is just barely out of code.

I would drink it.