Inline six I assume? I've never seen one with a push in type oil filler cap. In any event, check to make sure your PCV valve is not clogged. Or just replace it. The only other thing I can think of is too much blow-by. Maybe it's time for a ring job. Todd _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list