For the Focus Zetec and Liberty diesel that call for a filter with an anti-siphon valve (basically a backwards ADBV), M1 no longer offers the M1-211. They discontinued it when switching over to the AP filters with the A at the end of the part number.
Crosses to Wix 51315 and Fram 8316 (no Ultra XG8316), and the old FL-2005 (no longer made, since Purolator stopped making them)
So the only extended-drain filter still available for the Zetec is the Wix 51315XP (Napa Platinum 41315)
That said, a regular Wix/Napa Gold and the Fram TG should be able to handle a year/10k OCI with no problem. There's also the Mann W719/27 if you can get it.
Crosses to Wix 51315 and Fram 8316 (no Ultra XG8316), and the old FL-2005 (no longer made, since Purolator stopped making them)
So the only extended-drain filter still available for the Zetec is the Wix 51315XP (Napa Platinum 41315)
That said, a regular Wix/Napa Gold and the Fram TG should be able to handle a year/10k OCI with no problem. There's also the Mann W719/27 if you can get it.