I'm with you..my daily driver (purchased 3 mths ago)is a 2008 f150 4x4 , tuned 4.6 (pass on the 5.4)with 90k at the moment. Not sure if i would want my 3.5 for a daily.
Separates the exhaust gas blow by so the motor does not burn it. ( couple of ounces of gunk per oil change) installs in the pvc system ,super easy and cheap. $100