service interval Oldsmobile Silhouette 1999 Owner's Manuals

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6-41 Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 to 13 000 km). Any time you notice unusual wear,
rotate your tires as soon as possible and check wheel
alignment. Also check for damaged tires or wheels. See
ªWhen It's Time for New Tiresº and ªWheel
Replacementº later in this section for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See ªScheduled
Maintenance Servicesº in the Index for scheduled
rotation intervals.
When rotating your tires, always use the correct rotation
pattern shown here.Don't include the compact spare tire in your
tire rotation.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the
Certification/Tire label. Make certain that all wheel nuts
are properly tightened. See ªWheel Nut Torqueº in
the Index.
CAUTION:
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after a time. The wheel could come off and cause
an accident. When you change a wheel, remove
any rust or dirt from places where the wheel
attaches to the vehicle. In an emergency, you can
use a cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later, if you
need to, to get all the rust or dirt off. (See
ªChanging a Flat Tireº in the Index.)

Scheduled Maintenance
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7-5
Short Trip/City Definition
Follow the Short Trip/City Scheduled Maintenance 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.

Most trips include extensive idling (such as frequent
driving in stop
-and-go traffic).

Most trips are through dusty areas.

You frequently tow a trailer or use a carrier on top of
your vehicle.

If the vehicle is used for delivery service, police, taxi
or other commercial application.
One of the reasons you should follow this schedule if
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or 3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Chassis Lubrication
(or 6 months, whichever occurs first). Tire Rotation.
Every 12,000 Miles (20 000 km): Passenger
Compartment Air Filter Replacement.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving in dusty conditions.
Every 30,000 Miles (50 000 km): Air Cleaner
Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection (or every 60 months, whichever
occurs first).

Scheduled Maintenance
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7-6
Short Trip/City Intervals
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
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 scheduled maintenance
on the following pages.
Long Trip/Highway Definition
Follow this scheduled maintenance only if none of the
conditions from the Short Trip/City Scheduled
Maintenance is true. Do not use this schedule if the
vehicle is used for trailer towing, driven in a dusty area
or used off paved roads. Use the Short Trip/City
schedule for these conditions.
Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break
down slower.

Scheduled Maintenance
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7-7
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs first).
Chassis Lubrication (or every 12 months, whichever
occurs first). Tire Rotation.
Every 15,000 Miles (25 000 km): Passenger
Compartment Air Filter Replacement.
Every 30,000 Miles (50 000 km): Air Cleaner
Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection (or every 60 months, whichever
occurs first).
Long Trip/Highway Intervals
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
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 scheduled maintenance
on the following pages.

Short Trip/City Scheduled Maintenance
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7-8
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº following.
Footnotes

The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.# Lubricate the suspension, steering linkage, transaxle
shift linkage, parking brake cable guides and the
underbody contact points and linkage.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.

Long Trip/Highway Scheduled Maintenance
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7-22
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº following.
Footnotes

The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.# Lubricate the suspension, steering linkage, transaxle
shift linkage, parking brake cable guides and the
underbody contact points and linkage.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.

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7-30
Part B: Owner Checks and Services
Listed in this part are owner checks and services which
should be performed at the intervals specified to help
ensure the safety, dependability and emission control
performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See ªEngine Oilº in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX
-COOL

coolant mixture if necessary. See ªEngine Coolantº in
the Index for further details.Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the
windshield washer tank and add the proper fluid if
necessary. See ªWindshield Washer Fluidº in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
See ªTiresº in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See ªAudio Systemsº in the
Index for further details.

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7-37
Part E: Maintenance Record
After the scheduled services are performed, record the date, odometer reading and who performed the service in the
boxes provided after the maintenance interval. Any additional information from ªOwner Checks and Servicesº or
ªPeriodic Maintenanceº can be added on the following record pages. Also, you should retain all maintenance receipts.
Your owner information portfolio is a convenient place to store them.
Maintenance Record
DATEODOMETER
READINGSERVICED BYMAINTENANCE PERFORMED

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9-7
Locks
Automatic Door 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canceling the Sliding Door Security 2-31 . . . . . . . . . . . . . .
Cylinders 7-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Check 7-33 . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-31 . . . . . . . . . . . . . . . . . . . . .
Last Door Closed Locking 2-6 . . . . . . . . . . . . . . . . . . . . . . .
Lockout Deterrent 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Door 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sliding Door 2-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sliding Door Child Security 2-29 . . . . . . . . . . . . . . . . . . . . .
Sliding Door Delayed Locking 2-6 . . . . . . . . . . . . . . . . . . .
Loss of Control 4-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant Warning Light 2-95, 6-24 . . . . . . . . . . . . . . . . .
Low Fuel Warning Light 2-101 . . . . . . . . . . . . . . . . . . . . . . . .
Low Oil Level Light 2-100, 6-11 . . . . . . . . . . . . . . . . . . . . . .
Low Traction Light 2-93, 4-9 . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricants and Fluids 7-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication Service, Body 7-31 . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Carrier 2-76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Control 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Normal Replacement Parts 6-65 . . . . . . . . . . .
Maintenance Record 7-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Schedule 7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How This Section is Organized 7-2 . . . . . . . . . . . . . . . . . . .
Long Trip/Highway Definition 7-6 . . . . . . . . . . . . . . . . . . .
Long Trip/Highway Intervals 7-7 . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-30 . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-34 . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-35 . . . . . . . . . . . . . Scheduled Maintenance Services 7
-4 . . . . . . . . . . . . . . . . . .
Short Trip/City Definition 7-5 . . . . . . . . . . . . . . . . . . . . . . .
Short Trip/City Intervals 7-5 . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Underbody 6-53 . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Trailer Towing 4-39 . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-95 . . . . . . . . . . . . . . . . . . . . . .
Matching Transmitters to Your Vehicle 2-10 . . . . . . . . . . . . . .
Mirrors 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heated Outside 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Day/Night Rearview 2-67 . . . . . . . . . . . . . . . . . . . . .
Power Remote Control 2-67 . . . . . . . . . . . . . . . . . . . . . . . . .
Visor Vanity 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mountain Roads 4-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multifunction Alarm Locks and Lighting Choices 2-13 . . . . .
Arming and Disarming the Content
Theft
-Deterrent System 2-21 . . . . . . . . . . . . . . . . . . . . . . .
Automatic Door Locks 2-15 . . . . . . . . . . . . . . . . . . . . . . . . .
Content Theft-Deterrent System 2-19 . . . . . . . . . . . . . . . . .
Delayed Illumination and Exit Lighting 2-14 . . . . . . . . . . .
Entering Programming Mode 2-14 . . . . . . . . . . . . . . . . . . . .
Exiting Programming Mode 2-23 . . . . . . . . . . . . . . . . . . . . .
Last Door Closed Locking and Lockout Prevention 2-16 . . . .
Remote Driver's Unlock Control 2-17 . . . . . . . . . . . . . . . . .
Remote Lock and Unlock Confirmation 2-18 . . . . . . . . . . .
Multifunction Lever 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net, Convenience 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NEUTRAL(N) 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Vehicle ªBreak-Inº 2-37 . . . . . . . . . . . . . . . . . . . . . . . . .
Night Vision 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Maintenance Replacement Parts 6-65 . . . . . . . . . . . . .