Hello, I just picked up a 1997 F250 with the 7.3 diesel. My local tractor supply has the 2.5 gallon jugs of Traveler all fleet 15W40 for $21.99! I figured $2/quart for HDEO is pretty good. What is the opinion on this oil here? I have seen some CI-4 used oil analysis, but what about the CJ-4 formulation? I'm probably sweating over nothing here, but if it's gtg, I'd be happy to use it over the $3/qt Rotella. Thanks!