Pontiac 1998 Firebird Owner's Manual page 343

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Short Trip/City Maintenance Schedule
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~~~ ~
81,000 Miles (135 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs first).
An
Emission Control Service.
84,000 Miles (140 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs first).
0
Change the rear axle gear lubricant if vehicle is used to pull a trailer.
17
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
An Emission Control Service.
rotation pattern and additional information. (See footnote
+.)
87,000 Miles
(145 000
km)
0 Change engine oil and filter (or every
3
months, whichever occurs first).
An Emission Control Service.
90,000 Miles (150 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs first).
0
Change the rear axle gear lubricant if vehicle is used to pull a trailer.
An
Emission Control Service.
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DATE
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MILEAGE
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DATE
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MILEAGE
ACTUAL
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SERVICEDBY:
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MILEAGE