The last I knew Case-IH's parent (which is now also New Holland, BTW) also owned the refinery that made their No.1 and Hy-Tran Ultra. I assume they do many/all of the rest of their lubes, too. It would still be "hired out" on paper, but in actual fact, they're making their own. This could have changed in the last year or so, but I don't think so.