For my Modular I only use the FL-820S, but when I do other cars I usually go with Fram. The Fram Ultra is a great filter and would be my filter of choice with any other type of engine.
I really dont understand why ford guys are so stuck on the 820s. Yeah its a good low priced filter but there are a lot of filters with silicone ADBVs and better construction and efficiency. The real reason I think, is all the mod guys think it helps start up rattles. The reality is if you dump the 5/20 and go with 5/30 you dont even need an ADBV to keep it from rattling in the morning. The oil is the problem and the filter is not the solution
OT Really? Not in my experience. Son owned an 05 4.6L Explorer purchased new that only saw 5w20, mostly MC Syn Blend for ~5k oci's. The one time he went to a quick lube for OC they installed some aftermarket generic filter, iirc nitrile adbv, he had a start up rattle for that oci. Switched back the the FL820S next oc keeping the 5w20, start up rattle gone, never used anything but the 820S after that. While prehaps not the 'absolute best' filter out there, the FL 820S is a solid filter at a value price. It seems to work particularly well in FoMoCo vehicles, some of which may be more sensitive to a start up rattle. And now thanks to Amsoil testing, it's generally accepted that the 820S has a known solid efficiency spec of ~94%@20um, as opposed to the old vague 80%@20um that MC put out.
Your 'reality' conclusion about no adbv and 5w20, is different than my experience. Did more than 'think' the FL820S helped with start up rattle, it cured the issue. Based on the oil and 820S filter specs it's also apparently different than Ford's conclusion too. Just sayin.
And, as electro's post that I quoted NEVER specified a specific engine but was rather apparently a generalization regarding ALL Ford 'mod' engines, that's what I addressed. Thus my response was based on the information provided. I'm sure electro appreciates you clarifying what he meant by 'mod' engine, even though that wasn't stated in the quoted post. However, I'll stand by my post regarding the modular engine with which I have experience.
But what is unfortunate imo, is that this thread has been taken off topic by another useless thin vs thick oil discussion.