1998 Buick Riviera Owner's Manual

Short TripKity MaintenanceSchedule96,000 Miles (160 000 km) (Continued)Lubricate chassis components (or every 6 months, whichever occurs first).(See footnote #.)0 Rotate tires. See “Tire Inspection and Rotation” in the Index for properrotation pattern and additional information. (See footnote99,000 Miles (165 000 km)Change engine oil and filter (or every 3 months, whichever occurs first).An Emission Control Service.+.)I DATEACTUALMILEAGESERVICED BYI100,000 Miles (166 000 km)0 Inspect spark plug wires.An Emission Control Service.0 Replace spark plugs.An Emission Control Service.0 Change automatic transaxle fluid and filter if the vehicle is mainly drivenunder one or more of these conditions:- In heavy city traffic where the outside temperature regularly reaches90°F (32°C) or higher.7-20