Avocado oil is really good, and it's important to have a super thin layer of oil. Just put a little in the pan and then evenly coat it with a papertowel and wipe out as much oil as possible.... and then wipe it out some more. It will look like there's nothing there and thats how you want it. Place in the oven on its highest setting like 450+ for 45min, let it cool a bit and then do it again. You should do this 3-4 times for a nice seasoning.