1996 Buick Regal Owner's Manual - Page 291

Maintenance Schedule ~~~ ~ ~~ ~ E g TripIHighway Definition ILong Tripmighway Intervals - .. .. Follow this maintenance scheduleonly if none of the conditions from the Short Trip/City Maintenance Schedule istrue. Driving a vehicle with fully warmed engine under a highway conditions causes engine to break oil down sloweK Every 7,500 Miles (12 500 km): 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 (12500 km) Then Every 15,000 Miles(25 000 km): Tire Rotation. Every 30,000 Miles (50 000 km): Air Cleaner Filter Replacement. FuelTank, 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 every60 months, whichever occurs first). Spark PlugWire Inspection. Spark Plug Replacement. These intervals onlysummarize maintenance services. on Be sure to followthe complete maintenance schedule the following pages.