NO! Cake is SUPER moist and delicious! I have had SO many compliments on the taste and texture of my cakes! I simply follow directions for BOTH boxes of mixes...so for the DH moist Deluxe, it's 3 eggs, 1/3 cup oil, 1 1/3 cup water...and for the pound cake, it's 2 eggs, and 3/4 cup water.
I don't add ANYTHING extra. It's been a tried and true combination for me.