I need to clearify, of course the truck should last for years and years or decades, but not without service. There will always be something to maintain.
I have easily put more than 1,000 hours on my deuce since I brought it home from Camp Lejeune, NC in 1995 and it has never let me down. Even with fuel mixed in with the fuel, it keeps on going and it's already 40 years old.
So I have to do some maintenance work now and then, but there is no one thing that will get it fixed forever, I'm pretty sure of that.
If "dry starts" are a problem, then get a pre-lube system installed, there are plenty of them on the market, one should fit.
We have seen how tricky oil filtering can be from D-man's posts, what about the micron rating, seems like it depends on the pressure drop across the filter(s), I'd like to see some graphs here showing pressure vs micron rating and also a used filter may filter small particles better than it does when new, with a build-up of debris, soot or whatever. There are bound to be compromises here. Multigrade oils are themselves compromises. In military service, a different grade was specified depending on ambient temperature.
The pressure drop across the two original filters is about half of that measured across the new XD filter, so what's the actual micron rating of either? Reading about the subject, you'll see that just looking at the oil to determine how good a lubricant it is, is not a good evaluation, the color is meaningless. A spectrochemical analysis (the lab report) does not take size of particles into account. If it did, and a filter was able to filter out traces of metal, the report could not indicate bearing wear problems, sort of a catch 22.
BTW, this is how I would begin a typical article, with ideas thrown out and asking myself stupid questions, but I have very little expertice on this subject, so I will not take the time to research and write about it. Perhaps we can get some expert answers here instead.