My old 2.5 did that (probably a contributing factor to losing the motor). My new one is leaking oil from the valve cover gaskets as well. Not a lot, but I have to get on top of that before it gets too bad. Not that uncommon from what I gather.

1998 Silver Frost SVT Contour born on...8/28/01[/i]
American Iron Shootout Radial Tire 2 Class Champion, Cecil County Dragway April 20, 2002