I use an oversize Mobil1 filter on everything. Just pulled the stock application off the shelf and matched the thread/diameter with the biggest one there. To be honest, my CJ hasn't run in so long that I forget whether the 304 I swapped in shares the same filter thread/diameter with the 4.0. Anyway, FYI the big Mobil1 MI-301 fits the 4.0. If the 4.0 is the same as the V8's (and 258's), there you go. I'm out-of-town right now, or I would go out in the barn and verify. Before I switched to synthetic in everything, I used Wix. I had the opportunity to witness a Wix cut open next to a Fram by the Dana salesman at a parts store I worked at in high school. http://www.greatlakes4x4.com/showthread.php?t=4097 http://www.greatlakes4x4.com/showthread.php?t=4101 -Spro -------------- Original message ---------------------- From: "John Elle" <johnelle@xxxxxxxxx> > I am afraid this could be one of the arguments that could go on for ever > with no real solutions out of it but, I will agree that WIX Filters are > very good filters and probably on the whole better than Fram. They also > make the Filters used by CarQuest auto stores. > As I do visit the CarQuest store as a matter of preference I usually > will buy my filters there, but I generally buy the bottom line and > change them every 3000 miles. But on the other hand I have a shelf full > of Fram Filters at the present because I found them on sale and as I > maintain an I6 Spirit, an '80 AMX, a Donohue, a '94 Saturn and a 96 > Chrysler T&C + 2 cars under construction and I drive 30,000 miles + a > year and have most of my life I have never had a failure with a Fram > Filter and see no reason why not to run one. > I frankly do not think for a basic street driven engine with no more > worries other than it starts and gets to the grocery store and back that > it really makes much of a difference what filter you run. Just change > oil every 3000 miles or so and call it good to go. > John. > > _______________________________________________ > AMC-List mailing list > AMC-List@xxxxxxxxxxxx > http://www.amc-list.com/mailman/listinfo/amc-list > > or go to http://www.amc-list.com _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com