Kashrut of lubricants

Question

I recently read an article that describes how edible fats are used as release agents (lubricants that prevent dough from sticking). It seems that since these are not technically ingredients but processing aids, they don't need to be listed on the ingredients declaration. So, for example, when the time comes to separate dough into half-sized portions, a machine called a divider is sued and to prevent the dough from sticking "divider oil" is applied directly to the dough. Other times the baking pan is coated with a panning oil to prevent the dough from sticking to it. The question is, if the company uses animal fat in this oil, does this create a kashrut problem or do we assume that it is batel be-shishim? Similarly, I believe that machinery used in food production is lubricated with grease that may come from animal fats, and sometimes this might ocme into contact with food. Same question, do we rely on batel be-shishim?