2002 Buick LeSabre Owner's Manual - Page 351

Scheduled Maintenance Long Trip/Highway Intervals Every 7,500 Miles (12 500 km): Engine Oil and Filter Change (or every 12 months, whichever occurs first). Tire Rotation. Every 15,000 Miles (25 000 km): Passenger Compartment Air Filter Replacement (if equipped). Every 30,000 Miles (50 000 km): Engine Air Cleaner Filter Replacement. Every 50,000 Miles (83 000 km): Automatic Transaxle Service (severe conditions only). Long Trip/Highway Intervals Every 60,000 Miles (100 000 km): Engine Accessory Drive Belt Inspection. Every 100,000 Miles (166 000 km): Spark Plug Wire Inspection. Spark Plug Replacement. Automatic Transaxle Service (normal conditions). Every 150,000 Miles (240 000 km): Cooling System Service (or every 60 months, whichever occurs first). These intervals only summarize maintenance services. Be sure to follow the complete scheduled maintenance on the following pages. 7-7