1997 Buick Skylark Owner's Manual - Page 306

I ShortTrip/CityMaintenanceSchedule I 12,000 Miles (20 000 km) Change engine oil andfilter (or every 3 months, whichever occurs first). An Emission Control Service. 9,000 Miles (15 000 km) 0Change engineoil and filter (or every 3 months, whichever occursfirst). An Emission Control Service. 0Lubricate chassis components (or every 6 months, whichever occurs first). (See footnote#.) c Rotate tires. See "Tire Inspection and ] Rotation'' in the Index for proper rotation pattern and additional information. (See footnote+.) (Also see footnote++.) ACTUAL MILEAGE I SERVICED B Y DATE SERVICED ACTUAL MILEAGE BY ~~ 7-9