Bewildered
New Member
I'm driving a 2006 Expy....Does anyone know definitively if the PCV valve has an effect on the buildup of the white-ish goo that accumulates on the underside of the oil fill cap in colder weather? I drive +/- 14 miles one way to work each day, and during the winter months, the goo appears....in the summertime, the goo is gone.