1997 Buick LeSabre Owner's Manual - Page 344

45,000 Miles (75 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. (See footnote *.) 0Lubricate chassis components every (or 12 months, whichever occurs first). (See footnote #.) Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote+.) (Also see footnote++.) m Long TriplHighway Maintenance Schedule m I 50,000 Miles (83 000 km) (7 Change , automatic transaxle fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside 90 temperature regularly reaches O F (32 O C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as foundin taxi, police or delivery service. If you donot use your vehicle under anyof these conditions, thefluid andfilter do require changing. not DATE ACTUAL MILEAGE SERVICED B Y DATE ACTUAL MILEAGE SERVICED BY: