1997 Pontiac Firebird Owner's Manual - Page 355
1997 Pontiac Firebird Manual
Page 355 highlights
I Long Tripmighway Maintenance Schedule 30,000 Miles (50000 km) CI Change engine oil and filter l(or every 12 months, whichever occurs first). An Emission Control Sewice. When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. - Ifyou do not use your vehicle under any of these conditions, change the fluid and filter at JO0,OOO miles ( 166 000 km). 0Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) 0Change 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 reaches90 O F (32°C) or higher. - In hilly or mountainous terrain. Manual transmission fluid doesn't require change. 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) (Also see footnote ++.) 7-34