1995 Buick Park Avenue Owner's Manual - Page 291

I MaintenanceSchedule I I 18,000 Miles (30 000 kmj 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 'i: U Lubricate 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). 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. 15,000 Miles (25 000 kmj 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service.