@Bob69, what do you expect to accomplish by seeking out the "best" oil filter on the market? Are you looking for the longest engine life possible? If so, exactly how long do you plan on running this, or these, engines? A million miles? Two million? Five million?
Whenever discussions come up here on BITOG, about the "best" protection for engines, suggesting that there must be some ultimate product, or products, that will protect engines from wear so much better than the competition, that they would clearly be the only choice anyone who really cares about their car, would use, I wonder where the evidence is to support these claims. And somehow my mind always wanders to all those that have been recognized for driving a car into the million mile club.
I've spent a fair amount of time reading accounts of cars that have made it to a million miles and beyond. Interestingly, there is quite a spread of how these cars were operated and maintained. Everything from the BMW that Mobil ran solely on a test stand, with all oil changes done precisely to the BMW service manual, and all using Mobil products, to the guy who did all his own maintenance on his
Accord. And the lady who drove her Tacoma to deliver seafood to restaurants, and all maintenance was done at the local Toyota dealership, with oil changes at the Toyota recommended interval. And many more.
In all these million mile cars, there is no evidence that any one oil filter was the best at long engine life. The only real constant that I found, for all million mile club cars, was being constant at regular maintenance, including oil changes.
So again, what are you looking for from a "best" filter?