1995 Buick Park Avenue Owner's Manual - Page 290

I MaintenanceSchedule I I 12,000 Miles (20 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. * 0Lubricate the suspension, steering linkage, transaxle shift linkage, parking brake cable guides and the underbody contact points and linkage (or every 6 months, whichever occurs first). 9,000 Miles (15 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. * I DATE ACTUAL MILEAGE SERVICED B Y 7-8