1995 Buick Riviera Owner's Manual - Page 308

90,000 Miles (150 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Inspect spark plug wires.An Enzission Control Service. (7 Replace Service. air cleaner filter.An Emission Control 0Lubricate the suspension and steering linkage, transaxle shift linkage, parking brake cable guides and the underbody contact points and linkage (or every 12 months, whichever occurs first). El Inspect engine accessory drive belt (or every 24 months, whichever occurs first). 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 ~missiovlControl Service. 7 0For supercharged engines only: Check the supercha-ger oil level and add oil as needed (or every 36 months, whchever occurs first). See "'Recommended Fluids and Lubricants" in this section.An Emission Contml Service. DATE ACTUAL MILEAGE SERVICED BY: 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. Replace spark plugs. Emission Control Service. An