1997 Buick LeSabre Owner's Manual - Page 328

Short Trip/City Maintenance Schedule 48,000 Miles (80 000 km) 0Change engine oil and filter (or every 3 months, whichever occursfirst). An Emission Control Service. (See footnote *.) 0Lubricate chassis components (or every 6 months, whichever occurs first). (See footnote #.) 0Rotate tires. See "Tire Inspection and Rotation'' in theIndex for proper rotation pattern and additional information. (See footnote +.) (Also see footnote ++.) 50,000 Miles (83 000 km) 0Change automatic transaxlefluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature regularly reaches O F 90 (32 O C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. q y o u do not use your vehicle under any o these f conditions, thefluid andfilter not require changing. do DATE ACTUAL MILEAGE SERVICED B Y DATE ACTUAL MILEAGE SERVICED B Y