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  1. J

    MOBIL 1 TRUCK & SUV SAE 5W-30

    For a 3.6L JL Wrangler. Yay or Nay? And what's up with all that Sodium? Oil came right out of the jug straight into the sample bottle.
  2. J

    Jeep 3.6L 20.5k mi; RL 0w-20 1.9k mi

    Thanks. But I think I am done with it. I am looking into an affordable and easily accessible 5W30.
  3. J

    Jeep 3.6L 20.5k mi; RL 0w-20 1.9k mi

    What about the high oxidation? I was expecting the viscosity to drop below 9.0 cSt after all the hard driving and heat. I should've done a VOA like suggested here.
  4. J

    Jeep 3.6L 20.5k mi; RL 0w-20 1.9k mi

    Really appreciate all the comments. Nobody has touched my Jeep. I do everything on it. Air filter was clean and the box properly closed. Oil has been changed multiple times before. I did a UOA before and things looked normal for the mileage. I was using Pennzoil at the time. I am starting to...
  5. J

    Jeep 3.6L 20.5k mi; RL 0w-20 1.9k mi

    But over 150 ppm? I'll call them tomorrow. Thanks
  6. J

    Jeep 3.6L 20.5k mi; RL 0w-20 1.9k mi

    It's 9.0 cSt on their PDS.
  7. J

    Jeep 3.6L 20.5k mi; RL 0w-20 1.9k mi

    Hi, I have no clue what I did wrong. I used a little pump from Harbor Freight to take a sample. My air filter is clean. What else could cause a Silicon spike? Also I don't understand the so early oxidation of the oil. Thanks for your comments in advance.
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