I'm thinking that I'll be changing my oil at least twice a year just to try and avoid this type of thing. My car is currently having a new engine installed at BMW due to a very unfortunate hydrolock situation during a flash flood. I'm not taking any chances with the new engine. Break-in is supposed to be 1200 miles @ 5500 rpms or less but I'm changing oil at 600 miles then again at 1200 then every 7k miles.
I know it's off topic a bit, but it's something worth considering.
2008 E92 6MT M3 (Silverstone metallic/CF roof)
1999 Yamaha R1 (soon to have BMW HP4)
Helicopter pilot (R22 and R44)