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      06-03-2010, 03:05 PM   #8
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Drives: e46 M3
Join Date: Dec 2007
Location: NY

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Originally Posted by WillC310 View Post
So my friend went to BMW where they rolled a completely brand new (straight out the factory assembly line) to a dyno and ran it up through all the gears. It didn't explode.. You guys make it sound like the cars today are still built in the 70s. Just get in and drive.
they wont explode immediately. proper break-in period is to ensure that the engine lasts 200, 300k miles etc. You will never know the ramifications of improper break-in until you get up there in mileage.
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