Buick 1999 LeSabre Owner's Manual page 315

Short Trip/City Scheduled Maintenance
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 ++.)
39,000 Miles (65 000 km)
j
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service. (See footnote *.)
42,000 Miles (70 000 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 +.)
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DATE
ACTUAL
SERVICED BY:
MILEAGE
DATE
ACTUAL
SERVICED BY:
MILEAGE
7-13