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      11-06-2012, 07:31 PM   #15
Used2be
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Drives: F10 M5 SpaceGray/SO
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Location: Michigan, USA

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Time or distance?

Quote:
Originally Posted by Sharpie12 View Post
ill do mine every 5-7k miles with motul 5w40
It seems to me the mileage based oil change is the more sensible method rather than a time based change interval? I'm not knowledgable about the chemical properties of oils, either petroleum based or synthetic, but I wouldn't think the oil breaks down while sitting in the oil pan over time. It's the wear and tear on the oil while lubricating moving parts that is the primary factor.
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