1. 5.2L V8 engine: Approximately 6 quarts with filter change.
2. 5.9L V8 engine: Approximately 7 quarts with filter change.
3. 3.9L V6 engine: Approximately 5 quarts with filter change.
It's always best to refer to the owner's manual or a reliable source of vehicle information to confirm the exact oil capacity for your specific 1998 Dodge pickup.