engine OLDSMOBILE SILHOUETTE 1998 Owners Manual

-m --
Eng Trip/Highway Maintenance Schedule I
67,500 Miles (112 500 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
Lubricate chassis components (or every 12 months, whichever occurs first).
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Service.
(See footnote #.)
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
0 Replace passenger compartment air filter.
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Service.
(See footnote #.)
rotation pattern and additional information. (See footnote +.)
82,500 Miles (137 500 km)
Cl Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
An Emission Control Service.
(See footnote #.)
I DATE I
I DATE I
MILEAGE
ACTUAL SERVICED BY:
’ 7-26
ProCarManuals.com

Long Trip/Highway Maintenance Schedule
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
90,000 Miles (150 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
IJ Lubricate chassis components (or every 12 months, whichever occurs first).
0 Replace passenger compartment air filter.
0 Replace air cleaner filter.
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Service.
(See footnote #.)
An Emission Control Service.
rotation pattern and additional information. (See footnote +.)
97,500 Miles (162 500 km)
Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Service.
(See footnote #.)
rotation pattern and additional information. (See footnote +.)
I DATE I
I MILEAGE ACTUAL I SERVICEDBY I
DATE I
MILEAGE
7-27
ProCarManuals.com

I Long Tripmighway Maintenance Schedule
100,000 Miles (I66 000 km)
0 Inspect spark plug wires.
0 Replace spark plugs.
0 Change automatic transaxle fluid and filter if the vehicle is mainly driven
An Emission Control Service.
An Emission Control Service.
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
(32°C) or
higher.
I DATE I
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, the fluid and
filter do not require changing.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See “Engine Coolant’’ in the Index for what to
use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test
the cooling system and pressure cap.
An Emission Control Service.
MILEAGE
7-28
ProCarManuals.com

Part B: Owner Checks and Services
Listed below 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
pe~orm these underhood checks
at each fueljill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See “Engine Oil” in
the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture if necessary. See “Engine Coolant”
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 “Windshield Washer Fluid” in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures. See
“Tires” in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See “Audio Systems” in the Index
for further details.
7-29
ProCarManuals.com

Starter Switch Check Brake-Transaxle Shift Interlock (BTSI) Check
A CAUTION: I I A CAUTION:
When you are doing this check, the vehicle could
injured. Follow the steps below.
injured. Follow the steps below. move suddenly. If it does, you or others could be
move suddenly.
If it does, you or others could
be When you are doing this check, the vehicle could
1.
Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake (see “Parking
Brake’’ in the Index if necessary) and the
regular brake.
NOTE: Do not use the accelerator pedal, and be
ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The starter
should work only in
PARK (P) or NEUTRAL (N). If
the starter works in any other position, your vehicle
needs service.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake (see “Parking Brake”
in the Index if necessary).
NOTE: Be ready
to apply the regular brake
immediately if the vehicle begins to move.
3. With the engine off, turn the key to the RUN
position, but don’t start the engine. Without applying
the regular brake, try to move the shift lever out of
PARK
(P) with normal effort. If the shift lever
moves out of
PARK (P), your vehicle’s BTSI
needs service.
ProCarManuals.com

Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
The key should turn to LOCK only when the shift
0 The key should come out only in LOCK.
lever is in
PARK (P).
Parking Brake and Automatic Transaxle E
Merhnnism Check
When you are doing
this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there
is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
brake
at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
0 To check the parking brake’s holding ability: With
the engine running and transaxle in NEUTRAL
(N),
slowly remove foot pressure from the regular brake
pedal.
Do this until the vehicle is held by the parking
brake only.
0 To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release all brakes.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody, Take care to
clean thoroughly any areas where mud and other debris
ProCarManuals.com

Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should be
performed at least twice a year (for instance, each spring and fall).
You should let your retailerk service department
or other qualified service center do these jobs. Make sure
any necessary repairs are completed at once.
Proper procedures to perform these services may be
found in a service manual.
See “Service and Owner
Publications” in the Index.
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
Inspect the front and rear suspension and steering system
for damaged, loose or missing parts, signs of wear or lack
of lubrication. Inspect the power steering lines and hoses
for proper hook-up, binding, leaks, cracks, chafiig, etc.
Clean and then inspect the drive axle boot seals for
damage, tears or leakage. Replace seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body near
the exhaust system. Look for broken, damaged, missing or
out-of-position parts as well as open seams, holes, loose
connections or other conditions which could cause a heat build-up
in the floor pan or could let exhaust fumes into
the vehicle. See “Engine Exhaust”
in the Index.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes, fittings
and clamps; replace as needed. Clean the outside of the
radiator and
air conditioning condenser. To help ensure
proper operation, a pressure test of the cooling system and
pressure cap
is recommended at least once a year.
Throttle System Inspection
Inspect the throttle system for interference or binding, and for
damaged or missing parts. Replace parts as needed. Replace
any components that have high effort or excessive wear.
Do not lubricate accelerator and cruise control cables.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need
to have
your brakes inspected more often if your driving habits
or conditions result in frequent braking.
7-33
ProCarManuals.com

Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your retailer.
USAGE FLUID/LUBRICANT
Engine Oil
Engine
Oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst”
symbol
of the proper viscosity. To
determine the preferred viscosity
for your vehicle’s engine,
see
“Engine Oil” in the Index.
Engine Coolant
50/50 mixture of clean water
(preferably distilled) and use only
GM Goodwrench@ DEX-COOL@
or Havoline@ DEX-COOL@
Coolant. See “Engine Coolant” in
the Index.
USAGE ~
Hydraulic Brake
System
-
Parking Brake
Cable Guides
Power Steering
System
Automatic
Transaxle
Key Lock
Cylinders
FLUIDLUBRICANT
Delco Supreme 11 @ Brake Fluid
(GM Part
No. 12377967 or
equivalent DOT-3 Brake Fluid).
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements of
NLGI
# 2, Category LB or
GC-LB.
GM Power Steering Fluid (GM
Part
No. 1052884 - 1 pint,
10500 17 - 1 quart, or equivalent).
DEXRON@-111 Automatic
Transmission Fluid.
7-34
ProCarManuals.com

1998 OLDSMOBILE SERVICE PUBLICATIONS ORDERING INFORMATION
The following publications covering the operation and servicing \
of your vehicle can be purchased by filling out
the Service Publication Order Form in this book and mailing it in with your check, money order,
or credit
card information to Helm, Incorporated (address below.)
~
CURRENT PUBLICATIONS FOR 1998 OLDSMOBILE
SERVICE MANUALS
Service Manuals have the diagnosis and repair information
on engines, transmission, axle, suspension, brakes, electrical, steering, body, etc. RETAIL SELL PRICE: $90.00
TRANSMISSION, TRANSAXLE, TRANSFER CASE UNIT REPAIR MANUAL
This manual provides information on unit repair service
procedures, adjustments and specifications for the
1998 GM transmissions, transaxles and transfer cases.
RETAIL SELL PRICE:
$40.00
SERVICE BULLETINS
Service Bulletins give technical service information needed
to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the
diagnosis and service
of your vehicle.
PLEASE COMPLETE THE ORDER FORM SHOWN ON
THE FOLLOWING PAGE AND MAIL TO:
Helm, Incorporated P.O. Box 07130 Detroit, MI 48207
OWNER’S INFORMATION
Owner publications are written directly for Owners and
intended to provide basic operational information about the
vehicle. The owner’s manual will include the Maintenance
Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner’s Manual and
Warranty Booklet. RETAIL SELL
PRICE: $15.00
Without Portfolio: Owner’s Manual only. RETAIL SELL PRICE: $10.00
CURRENT & PAST MODEL ORDER FORMS
Service Publications are available for current and past
model GM vehicles.
To request an order form, please
specify year and model name of the vehicle.
OR ORDER TOLL FREE: 1-800-782-4356
Monday-Friday 8:OO AM - 6:OO PM Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover)
ProCarManuals.com

Outside of Your Vehicle ........................ 6-50
Special Problems
............................. 6-48
Stains
...................................... 6-48
Tires
....................................... 6-52
Vinyl
....................................... 6-48
Wheels
..................................... 6-52
Windshield and Wiper Blades
................... 6-50
WiperBlades
................................ 6-50
Climate Control System
........................... 3-2
Clock. Setting the
................................ 3-9
Coinholder
.................................... 2-69
Comfort Controls
................................ 3-1
Compact Disc Care
............................. 3-27
Compact Disc Player
............................ 3-14
Care
....................................... 3-27
Errors
................................. 3-17. 3-20
Remote
..................................... 3-20
Compact Overhead Console
...................... 2-66
Content Theft-Deterrent
......................... 2-23
Control
of a Vehicle .............................. 4-6
Convenience Net
............................... 2-72
Side
....................................... 2-73
Convex Outside Mirror
.......................... 2-65
Coolant
....................................... 6-21
Adding
..................................... 6-23
Checking
................................... 6-23
Heater. Engine
............................... 2-29
RecoveryTank
............................... 5-18
Whattouse
................................. 6-22
Courtesy Transportation
........................... 8-6
Cruise Control ................................. 2-55
Compact Spare Tire
............................. 5-34
Cupholders
.................................... 2-69 Customer Assistance for
Text Telephone Users
......... 8-4
Customer Assistance Information ................... 8-1
Customer Satisfaction Procedure .................... 8-2
Damage. Finish
............................... 6-53
Damage. Sheet Metal
............................ 6-52
Daytime Running Lamps
......................... 2-59
Dead Battery
................................... 5-3
Defects. Reporting Safety
......................... 8-8
Defensive Driving ............................... 4-2
Defogger. Rear Window
.......................... 3-5
Defogging
..................................... 3-4
Defrosting
..................................... 3-4
Delayed Illumination
............................ 2-62
Dimensions. Vehicle
............................ 6-65
Door AjarLight
................................... 2-97
Power Sliding
................................ 2-15
Sliding
..................................... 2-14
Driver Information Center
........................ 2-99
DriverPosition
................................. 1-29
Driver’s Four-Way Manual Seat
.................... 1-2
Driving City
........................................ 4-21
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-22
InaBlizzard
................................. 4-28
In Foreign Countries
........................... 6-5
IntheRain
.................................. 4-18
Night
...................................... 4-16
Locks
....................................... 2-4
9-3
ProCarManuals.com