1994 Oldsmobile 88 Owner's Manual - Page 243

6. Transaxle Service- Change both the fluid and filter every 15,000 miles (25 000 ltm) if the vehicle is mainly driven under one or more of these conditions: In heavy city trafficwhere the outside temperature regularly reaches 90°F (32°C) or higher. In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police car or delivery service. If you do not use your vehicle under any of these conditions, change both the fluid and filter every 100,000 miles (166 000 ltm) . 7. Spark Plug Replacement*' Replace spark plugs with theproper type. SeeReplacement Parts in the Index. 8. Spark Plug Wire Inspection':?Inspect for burns, cracks or other damage. Check the boot fit at the coils and at the spark plugs. Replace wires as needed. 9. Air Cleaner Filter Replacement':' Replace every 30,000 miles (50 000 ltm) or more often under dusty conditions. Ask your dealerfor the proper replacement intervals for your driving conditions. 11. Supercharger Oil Check - Check oil every 30,000 miles (50 000 ltm) or 36 months. Add the proper synthetic oil. SeeRecommended Fluids G. Lubricants and Supercharger Oil in theIndex. NOTE: To determine your engine's displacement andcode, see Engine Identification in the Index. ':: = An Emission Control Service. t = The US. Environnlental Protection Agency or the California Air Resources Board has determined that the failure to perform this maintenance item will no1 nullify the emission warranty or limit recall liability prior to the completion of vehicle useful life. General Motors, however:urges that all recommended maintenance services be performed at the indicated intervals andthe maintenance be recorded in "SectionE: Maintenance Record." IO. Fuel Tank, Cap and Lines 1nspection':t - Inspect fuel tank, cap and lines (including fuel rails and injection assembly) for damage or leaks. Inspect fuel cap gasket for an even filler neck imprint or any damage. Replace parts as needed. Periodic replacement of the fuel filter is not required. 241