1997 Pontiac Firebird Owner's Manual - Page 362

Long TripEIighwav Maintenance Schedule 90,000 Miles (150 000 km) An Emission Control Service. 1 - Uses such as found in taxi, police or 0Change engine oil and filter (or every 12 months, whichever occurs first). delivery service. Ifyou do 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 reaches 90 O F (32 O C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. notuse your vehicleunder any of these conditions, change fluid and filter at the IO0,OOO miles (166 000 km). Manual transmission fluid doesn't require change. 0Replace air cleaner filter. An Emission Control Service. 0Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. (See footnote?.) (Continued) 7-41