Crock Pot Mesquite Roast

1 (2 -3 lb) chuck roast
6 ounces cola
1 (1 1/16 ounce) packages mesquite marinade ( the kind that comes in an envelope like taco seasoning. I use McCormick or Adolph’s)
1/4 cup water

How to make it :
Place chuck roast in the crock pot and pour cola over the top of it.

Mix water with the mesquite marinade packet and pour over the top of the roast.
Cook 8 hours on low.