1999 Buick Park Avenue Owner's Manual - Page 360

yellowblue Long Trip/Highway Scheduled Maintenance 22,500 Miles (37 500 km) (Continued) Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) j for any damage. Replace parts as needed. An Emission Control Service. (See footnote[.) j For supercharged engines only: Check the supercharger oil level and add oil as needed (or every 36 months, whichever occurs first). See "Recommended Fluids and Lubricants" in this section. An Emission Control Service. (See footnote[.) j Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. (See footnote *.) j Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) j Replace passenger compartment air filter. j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) j Replace air cleaner filter. An Emission Control Service. j Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket 30,000 Miles (50 000 km) DATE ACTUAL MILEAGE SERVICED BY: 7-24