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  1. smartcar111 20k-25k Blackstone

    smart General Discussion
    Here is my oil analysis for my 20k - 25k drive from Blackstone. I used Red Line 0w-40 but apparently, I forgot to mention that when I sent in my sample. Enjoy! Analysis
  2. Two Blackstone Tests

    smart Operation and Maintenance
    Hey everybody. I sent two oil samples in for analysis for Blackstone to see what's going on. One test I did was the tranny oil that I took out at 15k and the other test is the Mobil 1 0w-40 the Mercedes dealer put in for me with an OEM filter that was changed out at 5k miles. Mobil 1 0W-40...
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