just to follow up on this thread...yesterday I was at my local Walmart that hasn't had the M1-212A oil filters since I reported that here and the Mobil website still shows this filter is no longer available for my car...I saw a whole bunch (a dozen) new M1-212A oil filters on the shelf but they were in the newer gold, silver and black Mobil oil filter box rather than the older gold, silver and green boxes...the newer filters appear to still have the silicone orange ADBV...
for anyone looking, they are still out there...my local Walmart online (the same store as above) lists this filter as what they have on hand...subject to stock on hand I believe it said online...YMMV
Bill