I can’t find much on our grinder online, i’m hoping that someone may be able to help. Our grinder was out on the counter in the butcher shop during hunting season and I noticed that oil was leaking from the bottom of it. It was leaking out of the drain. Now that we are done for the season, we’re gonna clean it, change the oil and watch for more leaks. Does anyone know what kind of oil will be best to use and how much? I have attached a picture of the grinder that we have.