sorry, but another 47 question (the chest freezer one)...so ive greased everything, had new hoses made up, and next up is the gear box oil. So I'm going to pull the lowest plug, which isn't all the way at the bottom, and drain it, then I'm going to pull the top plug and fill it with the recommended cornhead grease. Do I fill it all the way to that top plug? Also, there was a plug I pulled on the auger, right in the middle, is that supposed to have anything in it as well? Thanks