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      02-20-2011, 11:59 AM   #23
piloto
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Drives: 2011 E90 M3 - AW/FR
Join Date: Jun 2010
Location: Orange County, CA

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Obviously Motoman's theory has been debated to death over the years. However, I agree with his theory on engine break in. The problem is that these engines have been run before at the factory prior to going into the car and then driven out of the factory, so essentially that small window of opportunity to work the piston rings is almost over. Once we take delivery, even at the Welt, we have an even smaller window of time to get the proper ring break in.

It would interesting if the factory offered a "break-in" option for a small fee (say $500). I'd pay it to have ability to drive the car however you wish right off the bat and not have to worry about the initial oil change and such. For ED, this would be great as you won't have to drive like you have a neutered car for the first few days.