Pontiac 1998 Grand Am Owner's Manual page 306

Maintenance Schedule
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Short TripKity Definition
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Follow the Short TripKity Maintenance Schedule if any
one of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16
km).
This is particularly important when outside
temperatures are below freezing.
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Most trips include extensive idling (such as frequent
driving in stop-and-go traffk).
Most trips are through dusty areas.
You frequently tow a trailer or use a carrier on top of
your vehicle. (With some models, you should never
tow a trailer. See "Towing a Trailer" in the Index.)
If the vehicle is used for delivery service, police, taxi
One o f the reasons you should follow this schedule i f
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
or other commercial application.
Short TripKity Intervals
Every 3,000 Miles (5 000 k m ) : Engine Oil and Filter
Change (or 3 months, whichever occurs first).
Every 6,000 Miles (10 000
k m ) : Chassis Lubrication
(or
6
months, whichever occurs first). Tire Rotation.
Every 15,000 Miles (25 OOO km): Air Cleaner Filter
Inspection, if driving in dusty conditions.
Every 30,000 Miles (50 000 k m ) : Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every
50,000
Miles
(83 0oO k m ) : Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 k m ) : Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs
first).
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule on
the following pages.
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