Any "filter" that allows enough oil to pass through it to lubricate an engine properly at highway speed isn't doing much "filtering". Like Carter used to say about some of their competitors' strainer screens in a carburetor inlet- - - -"They're for rocks, marbles, and bowling balls!" Ideally, an engine should have a full flow filter to strain out the big chunks that can damage bearings, and a bypass filter that slowly removes particles down to about 1 micron and dumps the oil back into the crankcase. That "fine" filter won't be able to flow enough oil volume to keep the engine lubed properly.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!