1997 Buick LeSabre Owner's Manual - Page 341

I T long Trip/Highway Maintenance Schedule /,500 Miles (12 500 km) 0Change engine oiland filter (or every 12 months,whichever occurs first). An Emission C o m o l Service. (See footnote *.) 0Lubricate chassis components(or every 12 months,whichever occurs first). (See footnote #.) 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 15,000 Miles (25 000 km) 0Change engine oiland filter (or every 12 months, whichever occurs first). An Emission Control Senice. (See footnote *.) 0Lubricate chassis components(or every 12 months,whichever occurs first). (See footnote #.) 0Rotate 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 B Y 7-29