Preheat the waffle iron. In a large mixing bowl, combine the eggs and oil, mix until the yolks are incorporated into the oil. Slowly pour in the root beer, and mix. Begin to add in the waffle mix about a cup at a time, and mix lightly (small clumps are A-okay). Once all is mixed together and relatively smooth, pour into the waffle iron, in between half cup and 3/4 cup batches, and cook until golden brown (about 3 minutes). If you happen to have any waffles left over, place them in a re-sealable bag, and toss into the freezer. They make excellent toaster waffles.