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  1. BFG MT KM3's | Wear results after 12,500 miles

    BFG MT KM3 Wear Report @ 12,500 miles, @~42-44psi All Factory JT Willys ZF8 Pentastar, Hardtop One tire rotation at 8500 miles. Factory BFG tread depth measurement based on unused spare = 18/32 Fronts = 12-13/32 remaining depth Rear = 13-14/32 remaining depth Takeaways: Less than 1/32...
  2. 0w40 Euro spec motor oil in the 3.6 Pentastar PSU

    2023 JT Willys ZF | I did my first oil change today at 2100 miles. Used a Mopar oil filter and Mobil-1 0w40 Eurospec Oil. No, the engine did not spontaneously combust or turn into dust immediately after. Those effects need a few hundred miles of operation to fully mature ;). I also...
  3. Pentastar 3.6 Recall On Lash Adjusters, Allegedly

    2023 Willys ZF | Got a call from dealer service adviser stating there is an open recall, released to dealers today, for the lash adjuster. SA was kind enough, but did not know details, except that it would take several hours to perform, and it was a remedy for a complaint of ticking. I asked...
  4. Are we in denial about the factory oil viscosity and grade specifications?

    The cam and interface damage appears to be a textbook example of insufficient oil film strength. Between the reduction in viscosity and the reduction in friction modifiers in modern xW20 and xW30 oils, are we simply refusing to accept that Jeep has sacrificed longevity for CAFE and questionable...


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