1997 Pontiac Firebird Owner's Manual - Page 353

Long Tripmighway Maintenance Schedule 7,500 Miles (12 500 km) e3 Change engine 'oiland filter (or every 12 months, whichever occurs first). An Emission Control Service. 15,000 Miles (25 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. c Lubricate chassis components (or every ] 12 months, whichever occurs first). (See footnote #.) El Change the rear axle gear lubricant if the vehicle has limited-slip differential. 17 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional informatiion. (See footnote t . -) 0Lubricate chassis components (OF 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°F (32' C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. I DATE I ACTUAL MILEAGE (SERVICEDBY: I 7-32