Pontiac 2001 Firebird Owner's Manual page 329

Scheduled Maintenance
Engine Oil Scheduled Maintenance
Change engine oil and filter as indicated by the
t
GM Oil Life System (or every 12 months,
whichever occurs first). Reset the system. The system
will show you when to change the oil
3,000 miles (5 000 km) and 10,000 miles (16 000 km)
since your last oil change. Under severe conditions, the
indicator may come on before 3,000 miles (5 000 km).
Never drive your vehicle more than 10,000 miles
(16 000 km) or 12 months without an oil and
filter change.
7-6
The system won't detect dust in the oil. So if you drive
in a dusty area, be sure to change your oil and filter
every 3,000 miles (5 000 km) or sooner if the OIL
CHANGE light appears. Remember to reset the Oil Life
System when the oil and filter have been changed.
--
usually between
See "Oil Life System" in the Index for information
on resetting.
An Emission Control Service.