Interesting..........I just changed my oil & filter and didn't notice it on the individual box. Been using Mopar filters since I'm in warranty. Probably doesn't matter though. Next time I'll look more closely out of curiousity. Wherever it's made it hopefully is made to "specs" and will be ok.
For what it's worth, I just replaced the blower motor resistor in my Girlfriends Cutlass. It came in an ACDELCO BOX and it says "MADE IN JAPAN". The one I took out says "MADE IN MEXICO". (I have it right here as I havn't thrown it out yet). The next one could be made anywhere depending on lowest bid.
It's really sad as it just indicates the loss of jobs in this country, etc.
I'd rather see everything made here.