I have recently been using Wix oil filters since they are made of a better construction than Fram and all, in addition to the antidrain back valve. I just changed my Bosch fuel filter for a Wix. I know Wix is supposed to be excellent, but the Bosch weighed more than Wix. Does this indicate anything? Anyone know of the quality of their fuel filters? Thanks Rob randrews@post.smu.edu