I sent a request to Subaru for SAE results of both, here is the response:
Date:
[Mon, 19 May 2008 11:17:57 -0400]
From: E-Commerce CDS MailBox Account <
[email protected]> To:
[email protected] Subject: RE: technical info re oil filters
Hello Mr. Smith:
Thank you for taking the time to contact Subaru of America. I am sorry,
as the testing information that you are seeking is proprietary
information. We do not publish our performance test results. The only
replacement oil filter that is now recommended is part number
15208AA100. This oil filter is available through any authorized Subaru
dealership.
If you need any future assistance, please let us know.
Best wishes,
John J. Mergen
Subaru of America