Preheat oven to 350.
Pour cake mix and pudding mix into a bowl. Using a stand or a hand mixer, begin mixing the dry ingredients together and slowly blend in the water.
Pour in the vegetable oil and continue to mix.
Beat in eggs, one at a time, mixing between additions.
Pour batter into well-greased Bundt cake pan and bake in preheated oven for 45 minutes (go ahead and check at 42-43 minutes with a toothpick; if it comes out clean, remove from oven).
Set aside to cool in pan for about 10 minutes, and then transfer cake to a rack to continue cooling.