* Owner's Manual: The most reliable source. Check the section on fuses and electrical systems. It should have a diagram showing the fuse locations and what each fuse protects.
* Inside the Fuse Panel Cover: Often, there's a small diagram printed directly on the inside of the fuse box cover itself. This is usually a simplified version, but it may be sufficient.
* Repair Manual: A Haynes or Chilton repair manual for your specific year and model of Oldsmobile Delta 88 will have a detailed wiring diagram, including the fuse panel layout. These are available online and at auto parts stores.
* Online Resources: Websites like repair manuals websites, Oldsmobile enthusiast forums, or general automotive repair forums might have someone who has scanned a copy of the diagram. Search specifically for "1988 Oldsmobile Delta 88 fuse box diagram."
If you can't find it in your owner's manual or on the fuse box cover, a repair manual is the next best bet for a comprehensive and accurate diagram.
