Quote:
Originally posted by Ex2X:
The dealer had to get my SE X (oh, cool, I just realized the spelling of that as I typed) from L.A., and my sales guy went up himself to pick it up and drive it back. So it had about 120 miles (almost 200km) on it when I took delivery. Now it has almost 4,000 miles on it one month later. No problems.
Ex2X,

Poor breakin is unlikely to cause the engine to fail outright, or very early on. So it's not like you can tell after 4,000 miles that something is wrong with it.

But longer term, a poorly broken in engine can burn oil, and can have less horse power than one where the compression rings are properly seated, etc.