Originally Posted by rngprerunner
There was a report a while back that said that K&N was the only filter that had an anti-drain back device that actually worked. I'm not sure this is still the case, but at one point in time it was.
That's got to be a bogus report. It was probably written by K&N. There's a lot of good oil filters out there, with anti drain back valves that work. Here's a few: Purolator Pure One, WIX (NAPA Gold is the same thing), AC Delco Duraguard, AC Delco Ultraguard Gold, Mobil 1, Motorcraft, and Purolator Premium Plus.
The guys at the following website think that the first two listed above are two of the best out there (and I recommend the site to you all -- lotta good stuff on it):
Bright Red 2003 Edge Plus, 3.0 liter, reg. cab, 4WD, manual trans., 4.10 rear end.
Mods: Speedliner spray-on bed liner. Air box mod. K&N drop in air filter. Gibson Sweptside single pipe catback system. James Duff traction bars (above the springs type). Delta Industries black polyethelene truck box (mounted on the driver's side of the pickup box between wheel well and cab). Hidden Hitch receiver hitch. Side window visors. Door pockets.