Just browsing one of my "other" websites today, I came across this thread which I believe to be very useful food for thought to those who choose to use aftermarket oil filters on their 6.0L and 6.4L. The thread is as follows:
Some aftermarket competitors have released 6.0L oil filters for both E and F-Series applications with an integrated oil cap. The complete filter/cap combination is thrown away after each oil change. While not being environmentally friendly, this action is also causing customer dissatisfaction.
It appears that owners are not always aware that this special style of filter/cap is being used – and that their original oil cap has been discarded. The next time they want to use an original style oil filter means they will have to buy another oil cap.
Ford has reduced the pricing of the oil caps to make it easier for dealers to get 6.0L owners back to original parts.
Remember, the 6.0 and 6.4L oil and fuel filters are patented for a reason and designed specifically for these engines. Help your customers by keeping their truck maintained with genuine Ford and Motorcraft parts.
This isn't just because I am a Ford dealer technician myself, but if it were my vehicle, I wouldn't be chancing the use of an aftermarket filter if I knew there were ANY chance that doing so could cause issues, EVEN for the sake of a few bucks. A few bucks is A LOT less than a few HUNDRED, or even THOUSAND bucks in repairs. Just my