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    Blackstone Analysis

    I have a 2008 Porsche C2S with 44,000 miles on it (bone stock car). I change my oil every 5000 miles with Mobil 1 0/40W. On my last Blackstone analysis, they said my sodium was high (69) versus the previous two reports of 6 and 7 respectively. Potassium is right in line with where it should be...
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