Old oil on cast iron Dutch oven I have a Dutch oven that remained in storage for about three years. Apparently I covered it with oil prior to the storing. Now,it has that old oil smell to it that I can't get of.

Any advice on how to remove the oil and smell?
Try burning it off. Put it in a 500 degree oven for an hour or so. If there is oil on it, it will smoke. 

After that, you may need to re-season the Dutch oven. 

Good luck.