1999 Oldsmobile 88 Owner's Manual - Page 306

yellowblue Long Trip/Highway Scheduled Maintenance 90,000 Miles (150 000 km) (Continued) Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. (See footnote[.) j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) (Also see footnote ++.) j 97,500 Miles (162 500 km) j Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) DATE ACTUAL MILEAGE SERVICED BY: 100,000 Miles (166 000 km) j Inspect spark plug wires. An Emission Control Service. j Replace spark plugs. An Emission Control Service. DATE ACTUAL MILEAGE SERVICED BY: 7-28