I have switched over totally to the Frantz rolls - price per cartridge change is still trivial, compared to OEM or competing spin-on types - and THEY typically are down on filtration capabilities in every oil analysis I have seen.
The "Spinner" type filters seem to have been a disappointment to most users I have seen posting - at least those who back up seat-of-pants, purely visual impressions with actual analysis results.
Seems most Spinner users are most impressed by the visual accumulations seen when servicing the Spinners - but fail to realize that there is that much, and MORE accumulation in a decent competing TP or paper towel cartridge type bypass filter - you just don't SEE it as easily as in the Spinners - until you do an oil analysis - then the difference becomes obvious!
As far as my own usage and test analysis using the Frantz TP cartridges, I'm on a annual oil change interval, so won't have results available until late Fall, when the next change is due. I fully anticipate a good report - but that expectation is tempered by the fact that, unlike previously posted analysis reports from past times and miles while still living in California, we're now in a relatively remote area of eastern Oregon.
I drive the truck far less miles - and a much higher percentage of those miles are short haul local driving - and virtually NO Winter driving to speak of, since ice and snow require a 4x4 vehicle, and my truck is a 4x2. Added to all that, is the larger injectors - nice for power, but bad for soot...
BUT, good or bad - I'll post results in about 4 more months - after 12 months and about 12K miles on the oil.
