Roadfrog,
You're a newbie here and all, so I'll be nice with ya.
Some despise them and have had failures, many have ran them thousands of miles with no problems. Unlike other message boards, FACTS rule on this one (at least the large majority of the time), so for you to come in and make a blanket statement like that, without supporting fact, is irresponsible.
FACT: Simply stated, Fram oil filters are not constructed as well as any other mass-market widely available filter on the market, be it the less expensive SuperTech or a more expensive filter.
Will you ever have a failure with one? In regular passenger-car/light-truck service, 99.9% of the time, NO, you will not. I openly admit that many people call Fram filters all sorts of names and swear they are the devil reincarnated in a orange can, but as I eluded to, the issue us oil addicts have with the filter, is that for the same price, you can buy a filter that is constructed and performs much better.
FACT: You're right on the Quaker State oil. The sludging issue is from the mid 1970's and has absolutely nothing to do with the oils of today.
I've got $20 bucks that says the 318 was covered in a heavy layer of deposits and varnish though.
Being curious, what grade did you use in it?