1998 Buick Riviera Owner's Manual - Page 326

Short TripKity Maintenance Schedule Lubricate chassis components (or every months, whichever occursfirst). 6 (See footnote #.) [7 Rotate tires. See "Tire Inspection and Rotation" in the Index proper for rotation pattern and additional information. (Seefootnote +.) 75,000 Miles (125 000 km) 0 Change engineoil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Inspect air cleanerfilter if you are drivingin dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote?.) I DATE MILEAGE I 78,000 Miles (130 000 km) Change engineoil and filter (or every 3 months, whichever occurs first). An Emission Control Service. Lubricate chassis components (or every months, whichever occurs first). 6 (See footnote #.) 0 Rotate tires. See "Tire Inspection and Rotation" the Indexfor proper in rotation pattern and additional information. footnote +.) (See DATE 7-17