1995 Buick Century Owner's Manual - Page 289

I Maintenance Schedule I1 30,000 Miles (50 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Replace spark plugs (except 2.2L Code 4 engine). An Emission Control Service. 0Inspect spark plug wires.An Emission Control Service. 0Lubricate the transaxle shift linkage, parking brake cable guides, underbody contact points and linkage. If equipped with grease fittings, lubricate the suspension and steering linkage (or every 12 months, whichever occurs first). 0Inspect 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. 0Replace air cleaner filter. An Emission Control Service. 0Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Ernission Control Service. 0Inspect Exhaust Gas Recirculation (EGR) system (2.2L Code 4 engine only). An Emission Control Service. DATE ACTUAL MILEAGE SERVICED B Y 7-29