Evaporated and condensed milk are different. Don't use condensed milk in that chocolate-oat meal recepie that you love, when it explicitly calls for evaporated. AND DON'T WONDER WHY IT DOESN'T WORK IF YOU USE THE WRONG INGREDIENT.
see:
Evaporated milk - Wikipedia, the free encyclopedia
Evaporated milk is fresh, homogenized milk from which 60 percent of the water has been removed.
and see:
Condensed milk - Wikipedia, the free encyclopedia
Condensed milk is cow's milk from which water has been removed and to which sugar has been added, yielding a very thick, sweet product that can last on the shelf for years.