1997 Buick Park Avenue Owner's Manual - Page 370

I Short Trip/City Maintenance Schedule I 100,000 Miles (166 000 km) 0Inspect spark plug wires. An Emission Control Service. 99,000 Miles (165 000 km) 0Change engineoil and filter (or every 3 months, whicheveroccurs first). An Emission Control Service. (See footnote *.) Replace spark plugs. An Emission Control Service. 0Change automatic transaxlefluid and filter if the vehicleis mainly driven under or one more of these conditions: - In heavy city traffic wherethe outside 90 temperature regularly reaches O F (32 O C) or higher. - In hilly or mountainous terrain. DATE ACTUAL MILEAGE SERVICED BY: 7-26