Originally Posted By: barlowc
Originally Posted By: daman
Thats nothing great,many are 99-98% @ 20microns including the yellow P1
Agreed. Nothing great. But not horrible either. Keep in mind, not all PureOne filters are rated at 20 microns. The smaller ones, such as the PL14610, all seem to be rated at 40 microns.
Originally Posted By: daman
Looks like no filters available for my applications,looks like there market is aimed at foreign cars mostly.
You might want to try their cross-reference lookup and see if you can find one. Their vehicle part finder doesn't show any results for my 2007 Saturn VUE, but a cross-reference of another filter turns up the part.
Very frequently misunderstood. Most automotive filters are rated to the manufacturers spec. Most of those specs are "nominal" rating, or 50%, most of these are around 20µ.
Other OEMs spec 98 or 99% efficiency, normally around 40 to 45µ.
98% efficiency at 20µ would be way to restrictive for a car engine unless it was supersize. There would not be enough flow.
As for the springs, the flat ones often cannot hold enough pressure against the seal after several months of usage.
It is a very different Denso from the ones I've cut (from Japan):