Quote:
Originally Posted by M5 Orthodox
+1
Couldn't agree with you more. There is definitely a wear-in period where materials forge to each other and form boundary layer lubrication. You want them to mate at various RPMs/speeds within the limit so as not to create resonance frequencies which may result in a more choppy transition.
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This isn't something special, it's part of the break-in process they recommend. I have always followed the process as closely as possible with only an occasional over-rev by mistake. All the cars ran great and never burned any oil. I see no upside to not doing what BMW engineers suggest.