Schrodinger's Cat Update AKA 2003 S55 - Page 4 - Mercedes-Benz Forum
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post #31 of 31 (permalink) Old 08-27-2016, 10:03 PM
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Date registered: May 2011
Vehicle: 2005 S600
Location: Virginia Beach
Posts: 360
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Breaking an engine in is absolutely required on a rebuild or a new engine. Mercedes has specific break in instructions, listed in the owner's manual. Breaking in is not obsolete.

However, the use of a "break in" oil is not required and many high performance cars come from the factory with synthetic oil.

The idea that a synthetic will prevent break in is an old wive's tale.

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2002 V70-XC (228K Castrol 0W40)
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