Not sure this image was produced by Subaru.
The interesting bullet point is "Pleated media has variable density paper".
I have cut open a new Subaru 15208AA15A oil filter and rolled out the paper media. Used a single LED pin light behind the media and moved it up and down (top to bottom of the width), you can see the light change brightness. Not real dramatic, but defiantly noticeable. Still do not know the micron rating.
Also when I cut open a new Wix oil filter 57055 that Wix has for my Outback. It media ares was about 2/3rds compared to OEM.
The anti-drainback valve is black. Can it still be silicone?
The interesting bullet point is "Pleated media has variable density paper".
I have cut open a new Subaru 15208AA15A oil filter and rolled out the paper media. Used a single LED pin light behind the media and moved it up and down (top to bottom of the width), you can see the light change brightness. Not real dramatic, but defiantly noticeable. Still do not know the micron rating.
Also when I cut open a new Wix oil filter 57055 that Wix has for my Outback. It media ares was about 2/3rds compared to OEM.
The anti-drainback valve is black. Can it still be silicone?