I bought half dozen Fram CH6351's about 10 years ago. I have no idea how old they were when I got them. I think I still have 2 or 3 left. There were more than a few ahead of them (first in-first out, you know...)
Haven't used them yet. I had more of them than I thought:
Fram CH6351 - DOM: 9/96, 7/98, 11/98, 6/99, 10/00 (2ea)
Beck Arnley: 0418083 - DOM 4/01 (2ea)