i have what i think are a pair of leaks...one im pretty sure is the rear valve cover gasket near the firewall...when changing my plugs i notice a couple back ther had oil in the well but it wasn't going into the engine (the threads were not coated and were clean, looked like normally worn plugs)

my other leak is on the front of the engine (pullies side) seems to be leaking from the top where the power steering (?) pulley is

one of these two has my alternator nicely coated as well

99 expedition eddie bauer, 5.4 v8, k&n drop-in, 3" magnaflow catback and gas mileage that makes the contour look like a hybrid