they were for Pontiac Vibes.
Which is a Toyota Matrix with a few GM parts thrown in just to mess things up.
the in their first gen(03-08) the base model(Matrix XR/Base) had the 1zzfe, and the GT model(Matrix XRS), the 2zzge.
oil and filter specs for both (from a doc i found on genvibe.com a looong time ago:
2zz-ge - 4.4l of 5w30 with oil change, or 4.8l dry fill. takes toyota's YZZF1 filter
1zz-fe - 3.7l of 5w30 with oil change, or 4.2l dry fill. takes Toyota's YZZF2 filter(but the YZZF1 works well also - only slightly larger)
the difference in the 2 really is slight they cross over to a Purolator 14476 (YZZF2), and 14477(YZZF1) same diameter, MAYBE 1/4 inch taller.
there was a TSB upping the fill on the 1zz-fe to the same as the 2zz-ge (4.4l @ oil change)
and of course the 1zzfe has been back specc'd to allow 5w30,5w20, or 0w20 (though i have some 0w30 GC to use @ some point..)