Dude sith th ed diesel and the Amsol rep are both fulla *expletive deleted*
I believe it after looking into it more.
The filter they are talking about is a bypass filter, which means it only receives about 5-10% of the output of the oil pump. There is still a standard full-flow filter on the engine which receives 100% of the output of the pump, but then a small portion of that is diverted through the bypass filter and then returned back to the system. A full-flow filter traps particles as small as about 20 microns, whereas the bypass system can trap sub-micron particles. The extreme filtration probably explains why it only handles a portion of the oil coming through. I imagine that you COULD build a sub-micron filter that could handle full-flow volume, but it would be enormous.
The reason that it works is that full synthetic oils simply do not break down over time, but eventually need to be changed because they get so dirty with the tiny particles which a full-flow filter can't remove. If you have a sub-micron filter keeping your full synthetic oil clean, then you can run that same oil indefinitely.
Using the system, you still need to have your full-flow filter changed periodically, and I think they recommend 25,000 miles, and the oil needs to be topped off at that point from losing what is in the filter, and any other losses.