Should I have any concerns running ST 15W40 CJ-4 in my F250? I usually run Motorcraft 15W40, due to the extra ZDDP levels, with a Napa Gold 1734. I'm just getting tired of spending almost $80 for an oil change for this truck, I just use it in a 50 mile radius, short tripped often, just a beat up old work truck, but I do want the engine to be protected, so if Supertech would offer the same level of protection of the Motorcraft, I'm all for it. Also, should I have any concerns running the spec'd Baldwin B7039 oil filter? The local hardware store has about 20 leftover from when they had a 7.3 delivery truck, theyre selling them for $5 each. My only concern is the Baldwin filter is noticably shorter than the Napa Gold or Motorcraft filter (7 and 3/8 compared to 8 inches long for the Napa Gold and Motorcraft).