1999 Buick LeSabre Owner's Manual - Page 316

yellowblue Short Trip/City Scheduled Maintenance j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. (See footnote *.) j Inspect air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote[.) 45,000 Miles (75 000 km) DATE ACTUAL MILEAGE SERVICED BY: 48,000 Miles (80 000 km) j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. (See footnote *.) j Lubricate chassis components (or every 6 months, whichever occurs first). (See footnote #.) j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) (Also see footnote ++.) DATE ACTUAL MILEAGE SERVICED BY: 50,000 Miles (83 000 km) j 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 temperature regularly reaches 90_F (32_C) or higher. - In hilly or mountainous terrain. DATE ACTUAL MILEAGE SERVICED BY: 7-14