I just picked up a barely used XL late 80's Federal Airtight on CL for a pretty good deal. I will be getting rid of the 1986 VC defiant/encore because the refractory has to be replaced again. It has been unused in a garage for the past 10 years and it had a few minor surface rust spots. All I did was rub some cooking oil into the cast and it took care of it. I treat my smokers with oil and it works well even when uncovered. Will this work much like I season my cast iron pans? I have never had a non porcelain coated stove and I don't want to paint...so coat the cast iron with oil a few times a year?? TIA