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  1. J

    IMPORTANT FOR AMSOIL AND AMSOIL FILTER USERS 6.4L

    So I do not sell amsoil but I do use it religously. I have been using the SS 0W-40 and an EAO17 filter. The site used to recommend the EA15K50 Amsoil filter which can be crossed up to the EAO17. The EAO17 is about 1 1/2 inches bigger than the stock filter and the EA15K50. Now they only show a...
  2. J

    Cold weather MDS “ECO” mode

    I have a 2019 6.4l 2500. Weather just turned cold and I have noticed the “eco” light comes on much more frequently. Anyone else notice similar operation in cold weather?
  3. J

    Constant Clunk

    So I have a 2017 6.4, 16,000 miles. Have taken it to dealer for a clunking noise in the drive line. Always happens at about 1500 rpms, let off gas coast, go back on gas and CLUNK. Also happens when slowing to make a slight left turn, go back on gas CLUNK. Sometimes happens when coming to a stop...
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