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      10-15-2013, 01:40 PM   #14
savela
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Drives: 2015 X5M
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Quote:
Originally Posted by bobafettt View Post
If the car were mature, no break in would be required. I changed the oil at 600 miles. Blackstone misplaced the sample. I did my 1200 mi break in at 1600. That blackstone analysis showed 0 metal shavings and in the comments they were quite impressed with the sample stating "looks like this is going to be an excellent engine for you. No contamination or problems found"
Btw, based on their data, f10 m5 owners average 6200 miles between oil changes.

So between 600 miles and 1600 miles, no shavings. Break in complete at 600 then? What if you changed the oil at 300 and no shavings? I'm just trying to understand how it could take so long for things to wear smooth and 'mature'. Why a continued break in beyond 1200 miles with only 'as needed' kick down and no excessive speed? I'm by no means an engine/transmission guru, simply trying to understand.

steve
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2015 ///X5M
2014 ///M6 (traded)
2014 ///M5 (traded)
2011 550i (traded)