[Fro826]

Madmach - I just had a new N63 put in my 2011 550i in November. Just changed the oil today for the first time (after 2000mi). Pay attention to break-in procedure (look in your manual if you have one). Mine was 1200 miles, never over 4500rpm and no "kick-downs" of the trans (but I have a 6-speed). Vary your rpms - don't drive at the same rpm for a long time (I was varying my rpm every few minutes. Also did a lot of pull up to 3-4krpm in one gear and letting the car slow down in that gear to get that engine-braking slowdown, which from what I've read is good for breaking in the piston rings.

I'm no engine break-in expert. If you read online you'll see 15 different suggestions from 8 different people. But, the above is what I settled on. I guess the only way to know if it was right or wrong is to see how long the engine lasts, and even then, who knows. haha!