Like the title says, there has been a rash of Purolator oil filters turning up with tears in the filter media. There have been several instances reported at BITOG (Bob is the Oil Guy), as well as at other automotive forums. Here are a
couple to get you started:
I usually use Purolators.
Ive read on several F150 sites to stay away from Fram filters because of the drain back or something like that not being good for the 5.4.