Here are the pictures of a Volvo OEM filter I cut open. This was used on a 1994 960 wagon, was run 10,000 miles, which is the recommended interval. Oil used was Mobil 10-30, which was changed by the Volvo dealer, every 10,000 miles or in some cases sooner. Car now has 193,000 miles and uses less than a quart between changes. This is not the first one of these I have cut open, but it is the first one that has a failed element.
The pictures:
See the pictures here
The pictures:
See the pictures here