what oil to use

That guy is just parroting information he got somwehere else, perpetuating the myth. Examine how the verbiage is couched in non-specific disparagement:

"one of the worst out there." Yeah, right along with some of other worst out there.

"sometimes not molded correctly" Like what 2 of the 10 he looked at or 2% of the 10 million Fram made last year?

There's more examples, but it is clear to me from reading his words he is just a Fram hater, perpetuating the myth.

I prefer Wix. Good compromise in quality and cost across all the lines, and they still make some really odd old ones I need that are hard to find.