1995 Buick Riviera Owner's Manual - Page 293

I M.aintenanceSchedule I 69,000 Miles (115 000 km) 72,000 Miles (120 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0Lubricate 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). DATE MILEAGE ACTUAL SERVICED BY: DATE MILEAGE ACTUAL SERVICED BY: 7-20