1996 Buick Park Avenue Owner's Manual - Page 323

Maintenance Schedule Long Trip/Highway Intervals Follow this maintenance schedule only if none of th, conditions from the Short Trip/City Maintenance Schedule is true. Driving a vehicle with fully warmed engine under a highway conditions causes engine to break oil down slower. dvery 7,500 Miles (12 500 h): Engine Oil and Filter Change (or every 12 months, whichever occurs first). Chassis Lubrication (or every 12 months, whichever occurs first). At 7,500 Miles (12 500 km) Then Every 15,000 Miles (25 000 km): Tire Rotation. Every 30,000 Miles (50000 km): Supercharger Oil Check (or every 36 months, whichever occurs first) (3.8L Code 1 engine only). Air Cleaner Filter Replacement. Fuel Tank, Cap and Lines Inspection. Every 50,000 Miles (83 000 km): Automatic Transaxle Service (severe conditions only). Every 60,000 Miles (100 000 km): Engine Accessory Drive Belt Inspection. Every 100,000 Miles (166 000 km): Cooling System Service (or every 60 months, whichever occurs first). Spark Plug Wire Inspection. Spark Plug Replacement. These intervals only summarize maintenance services. Be sure to followthe complete maintenance schedule on the following pages. -- 7-5