It's oil change time again for the 2012 535i and 2014 x1 28i sdrive. Iv'e been using Total Quartz 9000 energy oil lately so I re-ordered another batch from the same company as I did last year. Last years batch of oil jugs had a 1/17 molded into the bottom of the containers. The batch I just received has 3/8 molded on the bottom of the jug. Could this oil really be from 2008? The jugs from last year have the tamper proof tops, the new batch just has a regular screw on top. Of course, everyone is closed for the long weekend so I can't get an answer on the age of the oil. I'm not putting 12 year old oil in so the oil changes are on hold.