Totally normal for a M engine. A have a buddy who has an E39 M5 and has to put a quart in every other month. Doesn't bitch about it and would never sell his M5.
Hey, did you hear about all the shit going on in the Middle East?
2013 M3 - Mineral White, Carbon Fiber Roof, Competition, Cold Weather, Premium, 6MT, BPM Stage 2 Tune, MS Stage 2 Intake, Challenge Race X-pipe, M Performance Wheel