1993 Buick Skylark Owner's Manual - Page 271

b Scheduled Maintenance Services Schedule I - Follow ScheduleI if your car is MAINLY driven under one more of the following conditions: or 0 When most trips are less than 4 miles (6 kilometers). 0 When most trips are less.than 10 miles (16 kilometers) and outside temperatures remain below freezing. 0 When most trips indude extended idling and/or frequent low-speed operation as in stop-and-go traffic. 0 0 Towing a trailer."? When operating in dusty areas. Schedule I should also be followed if the car used for delivery service, police, taxi or other commercial applications. is TO BE SERVICED (See Explanationof Scheduled Maintenance Services Following Schedules I and 1 0 Item No. I II WHEN TO PERFORM Miles (kilometers) or Months, Whichever Occurs First MILES (000) 3 1 6 1 9 112115118121124127130(33136139142145148 KILOMETERS (000) 5 a 10 ...0 65 70 75 a ...0 80 Every 3000 mi. (5000 km) or 1. h g i n e Oil & Filter Change months 2. Chassis Lubrication Every oil other change a 3. Throttle BodyMountingAt Bolt Torque* 6 000 mi.(10 000 km) At 6 15 000 mi. (25 and then 000'mi. (10 000 km) 000 every km) or as necessary 30 000 mi. (50 000 km) or 24 months. 4 Tire & . Rotation Inspection & 0 I 5. Engine Accessory Drive Belt(s) Inspection* Every 270