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...Last I recall they were made for Purolater specs by an outside party.
Not sure what that means, but other than using a modified version of the Puro numbering system, there been no authoritative information indicating any connection to Purolator. Afaik, to connection to Purolator at all.
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I don't understand why they're offering a top-of-the-line synthetic oil with their bottom-of-the-line "value" filter? Seems like a mis-match to me......or is it that filters are not as important as we like to think they are?
Yes, considering the QSUD Syn would usable for an extended oci, it is a mismatch. But, it's about the bottom line and offering a synthetic oil change with a low teir filter, for a low price. But such practice is not limited to AAP, O'R has done similar but with an orange can and PP. So, rather than saying anything about filters, it's about offering the lowest price by using a throw in filter.
Back to the DW, there was a comment that Fram is making a few made in the US DW applications, but I've yet to see one either in person or on this board. Only seen the made in China DW.
I'd say the DW is ok for ~5k mi. oci.