I care what's in my oil, and use a by pass filter that takes the bad stuff out, and extends the life of my engine and my oil. I can tell you for sure that 90% of members here all think that the OEM full flow filter is "good enuff" for their purposes.
Difference is I can safely run my oil for 35,000 miles/4 years. If you try that with a OEM style filter, the rods would be hanging out of the block. There's a huge difference in filters, and what they do for your oil.
By keeping the insolubles out of the oil it makes a helluva difference in longevity of engine parts, and oil, but for the most part, it falls on deaf ears.
I have posted a few of the Blackstone used oil analysis reports for an dodge cummins owner that uses a by pass oil filter, that had the engine oil in his truck for 3 years and the oil was still very serviceable at 3 years and 25,000 miles by the oil analysis
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Brad Yost
1973 T/A (SOLD)
2005 GTO
1984 Grand Prix
100% Pontiacs in my driveway!!! What's in your driveway?
If you don't take some of the RACETRACK home with you, Ya got cheated 
  
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