1995 Pontiac Firebird Owner's Manual - Page 320

I MaintenanceSchedule I I When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. Ifyou donot use your vehicle under anyof these Conditions, change the and filter fluid at 100,000 miles (166 000 km). Manual transmission fluiddoesn't require change. 0Rotate tires. See "Tire Inspection and Rotation'' in the Index for proper rotation pattern and additionalinformation. - 0Replace spark plugs (except Code P 5.7L engine). An Emission ControlService. 0Inspect spark plug wires. Emission Control An Service. 0Replace air cleaner filter. Replace filter more often under dusty conditions. An Emission ControlService. Inspect fuel tank, cap andlines for damage or leaks. Inspect cap gasket for any fuel damage. Replace parts as needed. An Emission Control Service. 17 Change automatic transmission and fluid filter if the vehicleis mainly driven under one or more of these conditions: - In heavy city traffic wherethe outside 90 temperature regularly reaches O F (320 C) or higher. - In hilly or mountainous terrain. , 7-13