fuel OLDSMOBILE SILHOUETTE 1998 Owner's Manual

While refueling, let the cap hang by the tether as shown.
To remove the cap, turn it slowly to the left
(counterclockwise). The cap has a spring in it; if you let
go of the cap too soon, it will spring back to the right. If you
get gasoline on yourself and then
something ignites
it, you could be badly burned.
Gasoline can spray out
on you if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any ‘(hiss” noise to stop. Then unscrew
the cap all the
way.
6-6
ProCarManuals.com

Be careful not to spill gasoline. Clean gasoline from
painted surfaces as
soon as possible. See “Cleaning the
Outside
of Your Vehicle” in the Index.
When you put the cap back on,
turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine
if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See “Malfunction Indicator Lamp” in
the Index.
.
NOTICE:
If you need a new cap, be sure to get the right
type. Your retailer can get one for you.
If you get
the wrong type,
it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See “Malfunction Indicator Lamp” in
the Index.
Filling a Portable Fuel Container
Never fill a portable fuel container while it is in
your vehicle. Static electricity discharge from the
container can ignite the gasoline vapor. You can
be badly burned and your vehicle damaged if this
occurs.
To help avoid injury to you and others:
Dispense gasoline only into
approved containers.
Do not fiil a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed or
on any surface other than the ground.
inside of the
fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.
Bring the fill nozzle in contact with the
Don’t smoke while pumping gasoline.
6-7
ProCarManuals.com

Before closing the hood, be sure all the filler caps are on
properly. Then lift the hood
to relieve pressure on the
hood prop. Remove the hood prop from the slot in the
hood and return the prop to its retainer. Then just let the
hood down and close it firmly.
Underhood Lamp (If Equipped)
Your underhood lamp will go on when you open
the hood.
Engine Oil
LEVEL
If the low oil level light on
the instrument panel comes
on, it means you need to
check your engine oil level
right away.
For more information, see
“Low Oil Level Light” in the
Index. You should check your engine oil level regularly;
this is an added reminder.
It’s a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and
the vehicle must be on level ground. The
engine
oil dipstick is located at the front of the
engine compartment, near the center. The dipstick
handle has
a bright, yellow loop design for
easy identification.
Turn off the engine and give the oil a few minutes to
drain back into the oil pan. If you don’t, the oil dipstick
might not show the actual level.
6-11
ProCarManuals.com

What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the “Starburst” symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute
(API). Do not use any oil which
does not carry this Starburst symbol.
If you change your own oil,
be sure you use oil that has
the Starburst symbol on the
front
of the oil container. If
you have your oil changed
for you, be sure the oil put
into your engine is
American Petroleum
Institute certified for
You should also use the proper viscosity oil for your
vehicle, as shown in the following chart:
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE OIL
FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
’ “F /’
+ 40
+ 20
WOK
FOR THIS
SYMBOL
SAL 1OW-30
1-30 RED
COLD
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
6-13
ProCarManuals.com

Inflation -- Tire Pressure
The CertificatiodTire label, which is on the rear edge of
the driver’s door, shows the correct inflation pressures
for your tires when they’re cold. “Cold” means your
vehicle has been sitting for at least three hours or driven
no more than
1 mile ( 1.6 km).
NOTICE:
Don’t let anyone tell you that underinflation or
overinflation is all right. It’s not.
If your tires
don’t have enough air (underinflation), you can
get the following:
0 Too much flexing
Too much heat
0 Tire overloading
Bad wear
0 Bad handling
0 Bad fuel economy.
NOTICE: (Continued) NOTICE: (Continued)
If your tires have too much air (overinflation),
you can get the following:
0 Unusual wear
0 Bad handling
Rough ride
0 Needless damage from road hazards.
When to Check
Check your tires once a month or more.
Don’t forget your compact spare tire.
It should be at
60 psi
(420 kPa).
How to Check
Use a good quality pocket-type gage to check tire
pressure.
You can’t tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they’re underinflated.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out dirt
and moisture.
6-40
ProCarManuals.com

Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch-up
materials available from your retailer or other service
outlets. Larger areas of finish damage can be corrected
in your retailer’s body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are
not removed, accelerated corrosion (rust) can occur
on the underbody parts such as fuel lines, frame, floor
pan and exhaust system even though they have
corrosion protection.
At least every spring, flush these materials from the
underbody with plain water. Clean any areas where mud
and other debris can collect. Dirt packed in closed areas
of the frame should be loosened before being flushed.
Your retailer or an underbody car washing system can
do this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create
a chemical fallout. Airborne pollutants can fall upon
and attack painted surfaces on your
vehicle. This
damage can take two forms: blotchy, ringlet-shaped
discolorations, and small irregular dark spots etched
into the paint surface.
Although no defect in the paint job causes this,
Oldsmobile will repair, at no charge
to the owner,
the surfaces of new vehicles damaged by this fallout
condition within 12 months or 12,000 miles (20
000 km)
of purchase, whichever occurs first.
6-53
ProCarManuals.com

Underhood Fuse and Relay Center
This fuse and relay center is located in the engine
compartment, in front
of the windshield washer
fluid reservoir.
The fuses marked spare are available
if a replacement
fuse is needed.
‘ MAXIFUSES 1 ~ COOL FAN 2 :30 A)
3 - HEACLAlvlPS (60 A1 4 8All MAIN 2 (60 A) 5 - lLiN MAIN 1 (40 AI fi - COOL FAN 1 (30 A) 7 - BAlT MAIN 1 !63 A) I3 - IGN MAIN 2 160 AI MINI RELAYS
10 -COOL FAN 2 9 -COOL FAN
12-COOL FAN
1 li IGNMAIN
MICRO RELAYS
IS-FPMPSPDCON~ lG ~- HORN I7 FOGLAMP
MINIFUSES .a- Iru (IO A) ’9 -$=ARE 20 SPARE 21 - lGNi - UH :’5 A) =-SPARE 23 SPARE 21 -SPARE
25-ELEKIGN (l5Aj 26 SPARE 27- BiU LAMP (10 A) 28 - AIC CLU I10 A!
32 FUEL PUMP ;15 AI
33-ECMSENSEilOA) - ’ 34 - 35-FOG LP IlOA) I I 36 HORN (15 A] 37 -PARK LP (20 A) 39 - 38 - II
II
II
DIODES *- AC CLU DIODE
40-MINI FUSEPULLER 1 I
13-AiCCLU 1L - FUEL PUMP 29 - RACCO :la A] 30 ALT SENSE (10 A) L-J 31 --CC (10 A)
Maxi Fuse
1 -COOL FAN 2
3-HEADLAMPS
4-BATT MAIN
2
Coolant Fans
Circuit Breakers: FRT HVAC
HI BLWR, and HEADLAMP
Fuses (UP): HAZARD and
STOPLAMP
Circuit Breaker: PWR
SEATPSD. Fuses
(UP): ELC
and
RR DEFOG
6-61
ProCarManuals.com

Maxi Fuse
5-IGN MAIN 1
6-COOL FAN 1
7-BATT MAIN
1
8-IGN MAIN 2
Ignition Switch to Fuses (UP):
ABS/TCS IGN, CRUISE, DRL,
ELEC PRNDL, IGN
1, PSD,
SIR, T/SIG and PCM [IGN
MAIN Relay (Underhood
Electrical Center Fuses: A/C
INJ, TCC)]
CLU, ELEK IGN, IGN 1-U/H,
Coolant
Fans
Fuses
(UP): ABS MOD BATT,
CIGARIDLC, CTSY LAMP,
FRT PWR SCKT, PWR LOCK,
PWR MIRROR and RR
PWR SCKT
Ignition Switch to Fuses
(UP):
BCM PRGRM, FRT HVAC
LOWIMED BLWR, FRT
WPRNSHR, HVAC/DRL,
MALL/RADIO/DIC, PWR
QRT VENT, RR HVAC, RR
WPRNSHR, SUNROOF,
SWC ACCY and PWR WDO
Circuit Breaker
Mini Relays
9-COOL FAN
10-COOL FAN
2
1 1 -1GN MAIN
12-COOL
FAN 1
Micro Relays
13-A/C CLU
14-FUEL PUMP
l5-F/PMP SPD
CONT
16-HORN
17-FOG LAMP
Mini Fuse
18-INJ
19-SPARE
20-SPARE RH
FAN
1, LH FAN 2
LH FAN 2
FUSES: A/C CLU, IGN l-U/H,
INS, ELEK IGN, TCC
RH FAN
1, LH FAN 2
A/C Clutch
Fuel Pump
Not Used
Horn
LH Fog Lamp, RH Fog Lamp,
Fog Lamp Indicator
Fuel Injectors 1-6
Not Used Not Used
6-62
ProCarManuals.com

Mini Fuse
2 1 -1GN 1 -UH
22-SPARE
23-SPARE
24-SPARE
25-ELEK
IGN
26-SPARE
27-B/U LAMP
28-NC CLU
29-RADIO Evaporative Emissions
(EVAP)
Canister Purge Valve, Heated
Oxygen Sensors
1 and 2, Mass
Air Flow (MAF) Sensor
Not Used
Not Used
Not Used
Ignition Control Module (ICM)
Not Used
Transaxle Range Switch to
Back-up Lamps
A/C CLU Relay to A/C
Compressor Clutch Oil
Driver Information Display,
Heater A/C Control, Radio,
Rear Side Door Actuator
Control Motor, Remote Control
Door Lock Receiver (RCDLR),
Security Indicator Lamp and
Theft Deterrent Shock Sensor
Mini Fuse
30-ALT SENSE
3
1 -TCC Generator
Automatic Transaxle
(Torque
Converter Clutch Solenoids)
Stoplamp Switch to PCM
32-FUEL PUMP Fuel Pump Relay
33-ECM SENSE
34
35-FOG LP
36-HORN
37-PARK LP
38
39
40 Powertrain Control
Module (PCM)
Not Used
Fog Lamp Relay
Horn Relay
Daytime Running Lamps (DRL) Control Module,
Headlamps and
I/P Dimmer
Switch Theft-Deterrent Relay
to Headlamps
Not Used
Not Used
Mini Fuse Puller
6-63
ProCarManuals.com

Replacement Bulbs
Exterior Lamps Bulb Number
Headlamps ......................... 9004-HBI
Signal Lamps
.......... .3 157 NA or 3 157 NAK
Front Sidemarker Lamps ................... 194
Stop/Tail (Top)
.......................... 3057
Signal (2nd from top)
..................... 3 156
Tail (Bottom) ........................... 3057
Front Parking/Turn
Back-up Lamps (3rd from top)
............. 3156
Capacities and Specifications
The following approximate
capacities are given in
English and metric conversions.
Please refer to “Recommended Fluids and Lubricants’’
in the Index for more information.
Automatic Transaxle
Pan Removal and Replacement ..... 8 quarts (7.5 L)
With A/C
................... 9.6 quarts (9.1 L)
Cooling System
With Rear Climate Control
or Rear Heater
............ 1 1.9 quarts (1 1.3 L)
Engine Crankcase - Oil and
Fuel Capacity Filter Change
............... 4.5 quarts (4.3 L)
Standard/Regular .............. 20 gallons (76 L)
OptionalExtended
............ 25 gallons (95 L)
Refrigerant,
Air Conditioning*
.......... See the Refrigerant
Label under the hood.
Tire Pressures, Sizes ........... See Tire-Loading
Information label
on driver’s door.
Wheel Nut Torque .......... 100 lb-ft (140 N-m)
Windshield Washer Fluid ....... 1 gallon (0.37 L)
*See Air Conditioning Refrigerants later in this section.
NOTE: All capacities are approximate. When adding,
be sure to fill to the appropriate level, as recommended
in this manual.
Engine Specifications
Engine VIN Code ........................... E
Firing Order
...................... 1-2-3-4-5-6
EngineType
.............................. V6
Horsepower
............................. 180
Thermostat Temperature Specification
................... 195°F (91°C)
6-64
ProCarManuals.com