Okay, I have been using Fram Filters since almost before I can remember. I've read a few things about how they have gone downhill in quality over the last couple of years... I changed the oil pan on the Model T Sunday, so I now have more than 2-1/2 inches of clearance on a cast aluminum pan (yeah, it's a Chevy V6, it's what I had, and it was cheap, and hell, it's 3/4 of a SBC anyway...) So I get everything buttoned up, spin on the new Fram Oil Filter, fill the engine full of oil, and fire it up. Great, no leaks, everything looks good...my buddy Dave says "give it a little gas" so I went to about 2,000-2500....I saw the look in his eyes, and was reaching for the key before he had a chance to shout "SHUT IT OFF!!!!" The oil filter had blown off. I mean it came right off the threaded insert in the block. I checked the filter, looked at the threads, they "looked" okay, so I stuck it back on (after I cleaned up the Model T Valdez on the garage floor). I KNOW I had a good 10-12 threads on that thing, and got it good and snug, seated and an extra 1/2 turn. Tried it again. Hit 2,000 rpm (about 65 psi) and POW off it came again. Cleaned up THAT mess, went to the parts store, got a Wix filter, screwed it on, and no more problems. No leaks, and didn't blow off. I looked at the threads, and there's nothing obviously wrong with them, but that Fram filter went right into the trash. Anyone else have troubles like this?