Here’s the link to the thread at green hulk
SVHO oil filter comparison. $23 Denso (OEM) vs. $4 Motorcraft FL 910s
I didn’t realize it was four pages long.. .just went through all four pages.. there is some good tech info on the various oil filters. The Motorcraft filters specs, such as micron rating and most importantly the efficiency rating. The K&N lists the smallest particle trapped is 10 microns but no efficiency rating. I believe the Amsoil filters are 20 microns at 99% efficiency-impressive.
The other thing listed was the bypass valve psi ratings, or at what differential pressure the bypass will open.
There was no data listed for the Denso/Yamaha filter. While I’m sure the Denso is a decent filter, I find it disturbing that the ends of the pleats are open. I’ve seen other oil filters wherein the pleats are at least epoxied shut.
The other filter I saw mentioned was the Scotts micronic filter. I’ve used these filters for years in my bikes, I don’t know the micron efficiency rating off the top of my head but these are expensive as note by a poster on the green hulk site, but the poster failed to mention that the filters are reusable.. simply clean them with a quality contact cleaner, dry and put them back in. I also ran one my last diesel truck.