1996 Buick Century Owner's Manual

Maintenance ScheduleLOI- Tripmighway Definition Long Tripmighway IntervalsFollow this maintenance schedule only if none of theconditions from the Short TripKity MaintenanceSchedule is true.Driving a vehicle with a fully warmed engine underhighway conditions causes engine oil to breakdown slowel:gvery -1,500 Miles (12 5UV km): Engine Oil and FilterChange (or every 12 months, whichever occurs first).Chassis Lubrication (or every 12 months, whicheveroccurs first).At 7,500 Miles (12 500 km) -- Then Every15,000 Miles (25 000 km): Tire Rotation.Every 30,000 Miles (50 000 km): Exhaust GasRecirculation (EGR) System Inspection (2.2L Code 4engine only). Air Cleaner Filter Replacement. FuelTank, Cap and Lines Inspection.Every 50,000 Miles (83 000 km): Automatic TransaxleService (severe conditions only).Every 60,000 Miles (100 000 km): Engine AccessoryDrive Belt Inspection.Every 100,000 Miles (166 000 km): Cooling SystemService (or every 60 months, whichever occurs first).Spark Plug Wire Inspection. Spark Plug Replacement.Tlzese interwls ordv summarize maintenance services.Be sure to~follow the complete maintenance schedule on.the-following pages.7-5