Amen . It’s a crock. Synthetic filter . I’m sure , or hope at least , they mean it’s a different filter media .
You could probably take 2 identical 4.0 engines , and for one go to a quick oil change and screw on any filter that fits you find they have removed from vehicles , and another with whatever filter , and they both would out last the seats , the steering wheel , the drivetrain and about everything on the vehicle .
I’m not saying a 4.0 is so good it doesn’t deserve good care , but it is based off of the 258 that in its’ day , would outlast about every gas burning engine in production .
There are things about the 4.0 I don’t like ( weight, output , fuel economy ), but durability isn’t one of them .