Last time I changed the oil on my wife's Forester, I discovered the oil filter had failed. The filter media had torn away from the end caps due to bad pleat spacing and inadequate glue. I got a dozen of these from RockAuto.
It's been a few hundred miles since then, and I decided to pull the filter and inspect it. In that short time, it had failed in exactly the same way, for the same reason.
Here are pictures:

You can see the glue line where it was attached, and how the pleat flattened out against the inner core.

This is the other end, and it's a lot worse. When the glue failed on one end and pushed the pleat flat against the core, the other end simply tore and left a big hole.
I wrote to RockAuto, but it's past the 30 day return and warranty period so I doubt they'll do anything. Though I did point out that 30 days is not enough time to use 12 filters and find the flaws in them.
They were listed as private-branded Pro-Tec by Wix filters, and they came with AutoExtra branding. Caveat emptor.
It's been a few hundred miles since then, and I decided to pull the filter and inspect it. In that short time, it had failed in exactly the same way, for the same reason.
Here are pictures:

You can see the glue line where it was attached, and how the pleat flattened out against the inner core.

This is the other end, and it's a lot worse. When the glue failed on one end and pushed the pleat flat against the core, the other end simply tore and left a big hole.
I wrote to RockAuto, but it's past the 30 day return and warranty period so I doubt they'll do anything. Though I did point out that 30 days is not enough time to use 12 filters and find the flaws in them.
They were listed as private-branded Pro-Tec by Wix filters, and they came with AutoExtra branding. Caveat emptor.

































