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torags

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Posts posted by torags

  1. Well, there's always someone...  I had my oil tested after 2K miles  www.youroil.com  and the result was a very high content of metal.  Fearing that the motor wasn't operating properly I changed the oil.  Had it tested again at 5K and metal content was "within normal range."  I have no explanation as to why this happened, or whether it happens with all new motors, but I just didn't want to take any chance.  Worse case was that I spent some money foolishly on an unnecessary oil change.

    Don: If that was in your Cayenne, it is entirely normal. The alusil block has silicone dispersed within the metal, not a liner. The aluminum is scraped from the cylinder walls and some silicone goes with it. That why the oil is so black. Aluminum blackens when oxidized (scour an aluminum kitchen pan) unlike ferrous metals (orange)

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