[quote="LEGACY_GN, post: 3407178, member: 23491. I like mobile one because of the high filtration rating and in 8 years never had a problem till now. I bought 16 of them off eBay and have 7 left now[/quote]
My opinion is different than your's in wanting a "high filtration rating", I prefer NOT to have such a small level as 8-10 microns like Mobil I and K&N paper cartridge filters?
One reason is at higher oil pressure there is a much greater chance of a "blow-through" in the flimsy woven paper material so you can have oil passing through areas as much a 10 or 20 times the actual rating?
Many engines we build will idle at 25-35 psi and start up at 70-80 psi, so the very woven paper will usually show signs of "tracking" and also kill oil pressure when contaminated at low milage, at least we hove found this to be true many times when cutting filters open.
Many commercial and high performance use oil filters in the 40 micron range to protect multi-thousand $$$$ engines.
The 8 micron filters will restrict oil flow more than a 40 micron, but bearing and other parts are not damaged at the greater micron filtration level, and the additional flow is a big benefit in cooling as 30% of engine heat is dissipated and carried away by the oil.
Actually, after talking with a Wix tech rep, their performance filter is in the 40-60 micron range.
My personal preference is a stainless steel mesh 40 micron filter which can be used without a by-pass valve so ALL oil going to the engine or turbo is filtered.
Since we have been using SS mesh filters in various engines, street and strip, with thousands of runs and miles, we have not seen any bad effects on bearing on anything else in the engine.
