I use olive oil for seasoning all of mine. If its orangey on the outside too what you can do is heat the oven to a high temperature, cover it with a somewhat medium thick oil layer, not a thin layer, but not real thick, and let it bake in the over. It can get smokey, but what you are trying to do is cook the oil into the top layer of the pan to prevent oxidization. After every use, was with soap and water and a non metal scrubber, and the return to stove over heat to dry water and once dry, dab some oil on a paper towel and rub a thin layer on top of it pan.