Interesting, i would have never look only assumed. I know those with older engines are struggling to snap all of the older oil. They are convinced the new CJ oil will not work in the older engines. Which i would assume it is the same oil just ashless which isn't a new thing.
Member # 23075 Reged: 07/18/02
2005 Excursion w/ 6.0L PSD - Edge Insight, RCD EGR delete, Turbo Drain/Turbo Feed/Blue Spring/Oil Cooler Updates, Dfuser Coolant Filter, 240amp alt, fumoto.
2008 FX4 F250 CCSB w/ 6.4L PSD - Edge Insight, H13 Bi-HIDs, custom coolant filter, "all deleted", fumoto.