1997 Buick Park Avenue Owner's Manual - Page 375

I LongTripmighwayMaintenanceSchedule I 37,500 Miles (62 500 km) 0Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. (See footnote-)-.) 0For 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 T.) 0Change engine oil and filter (or every 12 months, whichever occursfirst). An Emission Control Service. (See footnote *.) 0Lubricate chassis components (or every 12 months, whichever occursfirst). (See footnote #.) 0Rotate tires. See "Tire Inspection and Rotation'' in the Index for proper rotation pattern and additional information. (See footnote +.) I DATE I ACTUALMILEAGE SERVICED BY:^ DATE MILEAGE ACTUAL SERVICED BY: ~ 7-31