I have heard that using old vegetable oil can really make you sick. What can it do to you? I mean worst case scenario? Can it kill ya or just make you sick? WHat is it that really happens to it? I ask simply for storage reasons because I have lots in storage all in one gallon un-opened jugs. If I keep it in the dark and not too warm can I still use it after say ten years or more? Any help would be great. Does anyone have any knowledge of coconut oil such as storage times, etc? Thanks.