1997 Buick Skylark Owner's Manual - Page 323

I Short Trip/City Maintenance Schedule I 100,000 Miles (166 000.km) Inspect spark plug wires (except 2.4L Code T engine). An Emission Control Service. 1 Replace spark plugs. 7 An Emission Control Service. 99,000 Miles (165 0100 km) 0Change engineoil and filter (or every 3 months, whichever occurs first). An Emission Control Sewice. Change automatic transaxle fluid and filter if the vehicleis mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature regularly reaches90 ".F (32°C) or hgher. > ACTUAL MILEAGE SJCRVICED BY: 7-26