I'm probably in those threads that kschachn provided with this same story, but here's my 2¢...
some time back between 2010-2014 I was doing the oil service for my Buddy's Vibe. I wanted to get some cheap WIX made filters, and found a deal on Rock auto, a private label closeout thing. they had I think 6, at around $1 each. ordered them all....
when they came, the Date codes Didn't match up to the (at the time) "Current" wix format, so I posted about them, and emailed Wix.
These were labeled for "Big A Auto" a chain i found out had Folded in the late 90's... somewhere around '97 iirc...once I had fully explained the situation to wix Customer service, they recommended NOT using them, as they only give Filters a 5 year shelf life.
I can Guarantee the ones I got sat on a shelf, in a cardboard box, in an un-climate controlled southern warehouse for the better part of 20 years....