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      03-23-2017, 07:40 AM   #13
Laki021
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Drives: BMW 540i xDrive
Join Date: May 2015
Location: Zurich

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Production technology improved a lot last decades, tolerances and standards are much tighter etc. So no more metal pieces and similar stuff in a new engine.
Basically, an engine is ready to be used normally the moment it exits the factory.

Most of the recommendations for break in are tens of years old, it's just difficult to get rid of them.
Appreciate 0