1995 Buick Riviera Owner's Manual - Page 282

I MaintenanceSchedule I I 21,000 Miles (35 000 km) 17 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 18,000 Miles (30 000 km) I7 Change engine oil and filter (or every 3 months, whchever occurs first). An Emission Control Service. Lubricate the suspension and steering linkage, transaxle shift linkage, parking brake cable guides and the underbody contact points and linkage (or every 6 months, whichever occurs first). 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. I I DATE I ACTUALMILEAGE ISERVICED BEI I I 1 ACTUAL MILEAGE SERVICED BY: 7-9