1996 Buick LeSabre Owner's Manual - Page 311

I Short l'rip/City Maintenance Schedule I 100,000 Miles (166,000km) J Change engine oiland filter (or every l 3 months, whichever occurs first). An Emission Control Service. 0Drain, flush and.refil1cooling * system (or every 60 months since last service, whichever occurs first). See "Engine Coolant" in the Index for what to use. Inspect hoses. ,Clean radiator, condenser, pressure cap and neck. Pressure test cooling system and pressure cap. Inspect spark plug wires. An Emission Control Service. An Emission Control Service. 0Replace spark plugs. An Emission Control Service. (Contimed) 7-25