No difference between years. I believe drain bolt is 6mm hex. 25-nm sounds about right. I believe the torque value for the filter is on the cap.
2010 E93 M3 / MS Catless X-Pipe / AA Catback / Vorsteiner Vented Hood and Bootlid E93 Trunk / ADV1 7.1 Wheels GB / LS3 LED Lights / Harrop Supercharger