1998 Pontiac Firebird Owner's Manual - Page 349

Long Tripmighway Maintenance Scheduk 22,500 Miles (37 500 km) 0 Change engine oil and filter (or every 12 months, whichever occursfist). An Emission ControlService. Rotate tires.See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) I DATE ACTUAL MILEAGE I SERVICED BY: 30,000 Miles (50000 km) 0 Change engine oil and filter (or every 12 months, whichever occurs fist). An Emission ControlService. 17 Change automatic transmission fluid and if the vehicle is mainly driven filter under oneor more of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) higher. or - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as foundin taxi, police or delivery service. Ifyou do not useyour vehicle under anyo these conditions, change thefluid f andfilter every 50,000 miles (83000 km), 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 0 Replace air cleaner filter. An Emission Control Service. MILEAGE 7-24