1998 Pontiac Grand Prix Owner's Manual - Page 357
1998 Pontiac Grand Prix Manual
Page 357 highlights
I MaintenanceSchedule I DATE 97,500 Miles (162 500 km) 0 Check OilLife Monitor. If engine oil and filter are changed, reset monitor. An Emission Control Service. (See footnote*.) 0 Rotate tires. See "Tire Inspection and Rotation" the Index for proper in rotation pattern and additional information. (See footnote +.) See "Engine Oil" i the Index. n I 100,000 Miles (166 000 km) 0 Inspect spark plug wires. An Emission ControlService. 0 Replace spark plugs. An Emission ControlService. 0 Change automatic transaxle fluid and filterthe vehicle is mainly driven if under one or more of 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 found in taxi, police or delivery service. Ifyou do not useyour vehicle under anyof these conditions, the fluid and filter do not require changing. DATE I 7-12