An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.Google+
Car Problem Reports
Oldsmobile Silhouette Oil Pump Drive O-ring May Leak Oil From Rear of Engine
Oldsmobile Silhouette Problem
Engine Affected: 3.4L V6
Visitor, 2002 Oldsmobile Silhouette, 3.4L V6, 22,674 mi
oil just flow out the minute you put it in.warning light comes on low oil pressure....