Hello while working on a research into off Spec oils I came across a posting in these forums from 2013 on off Spec oils in Chicago. I would like to let you all know that there is action that can be taken if you come across bad oil, in Illinois atleast, that can be taken should you come across off Spec oil. If you find off Spec oil, in Illinois, you can lodge a complaint with The Department of Agriculture bureau of Weights and Measures at 1-800-852-0468. If you do register a complaint they need the name and the address of the business.