im going to have to side with the wix. ive been using them on all my cars for a few years now and have had not one problem.

i also took it upon my self to disect a oem filter and to my suprise i found a bunch of "crap."

__________________
Seth,

2 parts egg, 4 parts flour, 1 part salt and 6 parts 55 Cetane diesel fuel

1965 corvair monza convertable
1984 euro 300D 4 speed (NO LEATHER, ALL MANUAL)100,000 miles
Thank god the ford is gone