Originally Posted By: ElastoHydro
Pick an oil filter based on
better performance than the usual Mann-Hummel the dealer has.
Do we know what the efficiency is of the Mann, Hengst or Mahle filters the OEM uses are? I don't believe we do.
Originally Posted By: ElastoHydro
Fram Ultra is the best by far, 99% at >= 20 microns in the standard ISO 4548-12 test, typically an XG10075 (
Example Link here). or Walmart. The Ultra has a higher dirt holding capacity than most for long life. The Fram ExtraGuard CH10075 is good, at 95% @ 20 microns. Wix makes the 57327 which is a 95% @ 20 microns, same as NAPAgold, great choices too.
(Your part numbers may vary of course.)
Aside from the Ultra, which we know to have exceptional filtration, I don't think we can immediately assume the other offerings are superior to the OEM filters in terms of efficiency.
And of course there was that recent case of the Ultra losing its end cap in a BMW, which certainly eliminated any filtration benefits it might have had in that vehicle.
The OEM filters are designed to handle the extended OEM drain intervals. I don't think additional "dirt holding capacity" is an issue in these applications either.
My personal choice is an OEM filter and M1 0w-40. I see nothing wrong with the other filtration options you've mentioned either, so please don't take this post as an affront to your recommendations, I am simply questioning the boldness of assuming that the aftermarket products are better when data supporting that (IE, something that gives us OEM filtration ratings) is lacking.