1998 Buick Skylark Owner's Manual - Page 307

I ShortTrip/CityMaintenanceSchedule I 100,000 Miles (166 000 km) (Continued) 0 Change automatic transaxle fluid and if the vehicle is mainly driven filter under one or moreof these conditions: - In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as foundin taxi, police or delivery service. If you do not useyour vehicle underany of these conditions, the fluid and filter do not require changing. I50,OOO Miles (240 000 km) Drain, flush and refill cooling system (or every months since last service, 60 whichever occurs first). See "Engine Coolant" in the Index what to use. for Inspect hoses. Clean radiator, condenser, pressure and neck. cap Pressure test cooling system and pressure cap. An Emission Control Service. I DATE ACTUAL MILEAGE I SERVICEDBY: I I 7-20