1995 Buick Century Owner's Manual - Page 283

Maintenance ScheduleI 90,000 Miles (150 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Corztrol Semite. 0Replace spark plugs (except 2.2L Code 4 engine). An Emission Control Service. 0Inspect spark plug wires. An Enzissiorz Control Scrvicr. 0Lubricate the transaxleshift linkage, parking brake cable guides, underbody contact points and linkage. If equipped with grease fittings, lubricatethe suspension and steering linkage (or every 6 months, whichever occurs first). Inspect engine accessory drive belt (or every 24 months, whichever occurs first). 0Drain, flush and refill cooling system (or every 24 months,whichever occurs first). See "Engine Coolant"in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap. An Emission Control Service. *f 0Replace air cleaner filter. Replace filter more often under dusty conditions. A n Emission Control Service. Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket forany damage. Replace parts as needed. An Emission Control Service. -1 ? Inspect Exhaust Gas Recirculation (EGR) system (2.2L Code 4 engine only). An Emission Control Service. (Continued) 7-23