1997 Buick Skylark Owner's Manual - Page 303

Maintenance Schedule ~~ ~ - -. ~~ Long TriplHighwayDefinition , Long Trip/Highway Intervals Every 7,500 Miles (12500 km): Engine Oil and Filter Change (or every12 months, whichever occursfirst). Chassis Lubrication(or every 12 months, whichever occurs first). Tire Rotation. Every 30,000 Miles (50 000 km): 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 (166000 km): Spark Plug Wire Inspection. Spark Plug Replacement. Every 150,000 Miles (240 000 km): Cooling System Service (or every months, whichever occursfirst). 60 These intervals only summarize maintenance services. Be sure tofollow the complete maintenance schedule on the following pages. Follow this maintenance schedule if none of the only conditions from the Short Trip/City Maintenance Schedule is true. not use this schedule the vehicle Do if is usedfor trailer towing, drivenin a dusty area or used off paved roads. Use the Short Trip/City schedule for these conditions. Driving a vehicle with a fully warmed engine under highway conditions causes engine oil to break down slower. 7-6