1993 Buick Skylark Owner's Manual - Page 273

Scheduled Maintenance Services Schedule I1 Follow ScheduleI1 ONLY if none of the driving conditions specified in Schedile I apply. TO BE SERVICED (See Explanationof Scheduled Maintenance Services Following Schedules I and 11) Item No. Engine Change* Oil 1. Every Change* Filter Oil 2. Chassis Lubrication 3. Throttle Body Mounting Bolt Torque* WHEN TO PERFORM Miles (kilometers) or Months, Whichever Occurs First 12.5 7 500 mi. (12 500 mos. or 12 km) e 0 MILES (000) KILOMETERS (000) I 25 I 37.5 I e 50 I 62.5 I 75 change then first oilevery other At and 500.-km) 12 or mos. Every 7 500 mi. (12 only At 7 500 mi. ( 12 500 km). e e e 4 Tire & Wheel Inspection & Rotation . 5. Engine Accessory Drive Belt(s) Inspection* 6. Cooling System Service* I At 7 500 mi. (12 500 km) and then every 15 000 mi. (25 000 km) or as necessary Every 30 000 mi. (50 000 k ) 24 mos. m or 272