Well, I'm gonna abandon my pure 1's and try a different filter in my 2004 vibe (1zzfe). I don't like the 40u @99.9% rating. I wonder what that equates to in 20u size? Oh well, after some thought I figured I would try a Fram Xtended<span style="font-weight: bold">Guard</span> (XG4967).It seems I can't escape the 40u rating in most of the premium filters in my car's size. so, I'm gonna try this Fram filter with my fill of PU 5w30. My oci is 6 months/6000 mi. but usually ends up mileage wise at 5000 because of 2nd vehicle. What do all of you think about this filter choice. Let me know good or bad. by the way, I have 78,xxx miles on my vibe and am original owner. Thanks!