1997 Buick Century Owner's Manual - Page 347

I Short TripKity Maintenance Schedule I 60,000 Miles (100 000 km) 0Change engine oil and filter (or every 3 months, whichever occursfirst). An Emission Control Service. 57,000 Miles (95 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0Replace passenger compartmentair filter. 0Inspect engine accessory drive belt. 0Replace air cleaner filter. An Emission Control Service. c Inspect 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?.) (Continued) I DATE ACTUAL MILEAGE 7-17