1999 Buick Riviera Owner's Manual - Page 322

yellowblue Short Trip/City Scheduled Maintenance 96,000 Miles (160 000 km) (Continued) Lubricate chassis components (or every 6 months, whichever occurs first). (See footnote #.) Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) j j 99,000 Miles (165 000 km) An Emission Control Service. j Change engine oil and filter (or every 3 months, whichever occurs first). j Inspect spark plug wires. An Emission Control Service. j Replace spark plugs. An Emission Control Service. j Change automatic transaxle fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90_F (32_C) or higher. DATE ACTUAL MILEAGE SERVICED BY: 100,000 Miles (166 000 km) DATE ACTUAL MILEAGE SERVICED BY: 7-20