If your chili is to be tomato-based, I would wait a while to cook it in that new dutch oven. Acidic foods such as tomato may be too much for the seasoning that it has now. I agree with the "something greasy" advice. Sausage or bacon, great. The fried chicken suggestion, also great. I have a well-used DO that I won't hesitate to use for chili, but again, it is well-used. One thing that I think helps to keep mine seasoned is that I occasionally deep-fry in it.
President, Canton, OH chapter, Weber Rescue Society.
-Leinenkugel's - keep drinking until you can spell it-