1998 Pontiac Firebird Owner's Manual - Page 352

60,000 Miles (100 000 km) 0 Change engine oil and filter (or every months, whichever occursfirst). 12 An Emission Control Service. DATE MILEAGE 0 Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90O F (32 O C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 008 km). 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 0 Inspect engine accessory drive belt. An Emission Control Service. 0 Replace air cleaner filter. An Emission Control Service. 0 Inspect fuel tank,cap and lines for damage or leaks. Inspect fuel gasket cap for any damage. Replace parts as needed. An Emission Control Service.(See footnote-f.) 7-27