First, thanks everyone for all of the info posted here. It was really useful info.
I just changed my oil, 5086 miles, and I noticed a couple of things that differ from the original write up.
1. So far as I could tell, my drain plugs were identical. One of them, the one farther towards the front of the car, did have a blue dot written using a marker, just like you can see in the pics posted by GregW.
http://www.m3post.com/forums/showpos...7&postcount=21
2. It took 35 NM of torque to loosen my drain plugs, rather than the 18 NM and 10 NM suggested in the original write up. Consequently, I tightened both drain plugs to 35 NM. Actually, when I saw the 18 NM and 10 NM, that seemed quite low to me, and 35 NM is more like what I would expect.