1998 Oldsmobile Aurora heater

I NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So
use the recommended coolant.
I A CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Don’t spill coolant on
a hot engine.
1. You can remove the coolant surge tank pressure cap
when the cooling system, including the coolant surge
tank pressure cap and upper radiator hose, is no
longer hot. Turn the pressure cap slowly about
one-quarter turn to the left and then stop.
If you hear a hiss, wait for that to stop. A hiss means
there is still some pressure
left.
5-21

Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle for
5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOL’ extended life coolant.
J
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating, see “Engine Overheating”
in the Index.
A 50/50 mixture of water and DEX-COOL@
coolant will:
Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 “F (129 “C).
Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you
use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs
first. Damage caused by the
use
of coolant other than DEX-COOL@ is not
covered by your new vehicle warranty.

What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t
damage aluminum parts. If you use this mixture,
you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mixture will. Your vehicle’s coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
your engine could get too hot but you wouldn’t
get the overheat warning. Your engine could
catch fire and you or others could be burned.
Use
a 50/50 mixture of clean water and
DEX-COOL@ coolant.
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty.
Too much water in the mixture can
freeze and crack the engine, radiator, heater core
and other parts.
If you have to add coolant more than four times a year,
have
your retailer check your cooling system.
NOTICE:
~~ ~
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
6-22

Outside of Your Vehicle ........................ 6-55
Special Problems
............................. 6-52
Stains
...................................... 6-52
Tires
....................................... 6-56
Vinyl
....................................... 6-52
Wheels
..................................... 6-56
Windshield and Wiper Blades
................... 6-54
Climate Controls
................................ 3-2
Automatic Electronic
........................... 3-2
Right Front Passenger
......................... 3- 10
SteeringWheel
............................... 3-10
Clock. Setting the
............................... 3- 11
Comfort Controls ................................ 3-2
Compact Disc Care
............................. 3-26
Compact Disc Changer. Trunk Mounted
............. 3- 18
Compact Disc Changer Errors
................... 3- 19
Loading the Magazine
......................... 3- 18
Playing a Compact Disc
........................ 3-20
Compact Disc Player
............................ 3-16
Care
....................................... 3-26
Errors
...................................... 3-1 6
Compact Spare Tire
............................. 5-33
Control of
a Vehicle .............................. 4-5
ConvenienceNet
............................... 2-53
Convex Outside Mirror
.......................... 2-52
Coolant
....................................... 6-21
Heater. Engine
............................... 2-23
SurgeTank
.................................. 5-19
Cooling System
................................ 5- 17
Cornering Lamps ............................... 2-44
Courtesy Lamps
................................ 2-45 Courtesy
Transportation
........................... 8-6
Cruise Control
................................. 2-39
Customer Assistance for Text Telephone Users
......... 8-4
Customer Assistance Information
................... 8-1
Customer Satisfaction Procedure .................... 8-2
Damage. Finish
............................... 6-57
Damage. Sheet Metal
............................ 6-56
DateDisplay
................................... 2-80
Daytime Running Lamps
......................... 2-42
Dead Battery
................................... 5-3
Defensive Driving
............................... 4-2
Defogger. Rear Window
.......................... 3-9
Defogging
..................................... 3-9
Defrosting
..................................... 3-9
Delayed Illumination
............................ 2-45
DelayedLocking
................................ 2-6
DIC
.......................................... 2-75
Dimensions. Vehicle
............................ 6-72
Distance to Destination
.......................... 2-79
Door Defects.
Reporting Safety
......................... 8-8
Dolby@ B Noise Reduction ....................... 3-15
Ajar Reminder
................................ 2-5
Central Unlocking System
....................... 2-5
Locks
....................................... 2-4
Memory Locks
........................... 2-5. 2-11
Drive Position. Automatic Transaxle
................ 2-26
Driver Information Center
........................ 2-75
DriverPosition
................................. 1-13
9-3

Driving City
........................................ 4-20
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-21
InaBlizzard
................................. 4-27
IntheRain
.................................. 4-17
OnCurves
.................................. 4-11
On Grades While Towing a Trailer
............... 4-36
On Hill and Mountain Roads
.................... 4-23
On Snow
or Ice .............................. 4-26
Throughwater
............................... 4-19
WetRoads .................................. 4-17
Winter
...................................... 4-25
With a Trailer
................................ 4-35
DrunkenDriving
................................ 4-3
Night
...................................... 4-16
Elapsed Time Indicator
......................... 2-80
Electrical Equipment. Adding ........... 2.22. 3.25. 6-60
Electrical System
............................... 6-60
Electrochromic Daymight Rearview Mirror
.......... 2-48
Electronic Climate Control
........................ 3-2
Electronic Level Control
......................... 4-3 1
Engine ....................................... 6-10
Accessory Belt
............................... 6-72
Coolant
..................................... 6-21
Coolant Heater
............................... 2-23
Coolant Level Check
.......................... 7- 14
Coolant Temperature Gage
..................... 2-70
Exhaust
..................................... 2-31 Fuse Blocks
................................. 6-69
Identification
................................ 6-59
OilLevelCheck .............................. 7-14
Overheating
................................. 5-14
Running While Parked
......................... 2-32
Specifications
................................ 6-71
Starting Your
................................ 2-21
Engine Message (DIC)
........................... 2-77
EngineOil
.................................... 6-11
Adding
..................................... 6-11
Additives
................................... 6-14
Checlung
................................... 6-11
Life Monitor ................................. 2-78
Pressure Light
............................... 2-73
Used
....................................... 6-14
Whentochange
.............................. 6-14
Estimated Time
of Arrival ........................ 2-79
Exhaust, Engine
................................ 2-31
Exit Lighting
.................................. 2-46
Express-Down Window
.......................... 2-33
Fabric Cleaning
............................... 6-52
Fan Knob. Climate Control System
.................. 3-3
Filling Your Tank ................................ 6-5
Filter. Air
..................................... 6-17
Finish Care
.................................... 6-55
Finish Damage
................................. 6-57
First Gear. Automatic Transaxle
................... 2-26
Flashers. Hazard Warning
......................... 5-2
Flash-To-Pass Feature ........................... 2-37
Flat Tire. Changing
............................. 5-24
9-4

Second Gear. Automatic Transaxle ................. 2-26
SecurityFeedback
.............................. 2-11
Selectable
Shift ................................ 2-27
Service
........................................ 6-2
Bulletins. Ordering
........................ 8.9. 8.10
EngineSoonLight
............................ 2-71
Manuals. Ordering
........................ 8.9. 8.10
Parts Identification Label
....................... 6-59
Publications. Ordering
..................... 8.9. 8.10
Work. Doing
Your Own ......................... 6-2
Service and Appearance Care
...................... 6-1
Service and Owner Publications
............... 8.9. 8.10
Servicing Your
Air Bag-Equipped Aurora ........... 1-26
SheetMetalDamage
............................ 6-56
ShiftLever
.................................... 2-24
Shifting Automatic Transaxle
.......................... 2-24
Into Park (P)
................................. 2-28
OutofPark(P)
............................... 2-30
Selectable
................................... 2-27
Shoulder Belt Tightness Adjustment
................ 1 . 14
SignalingTurns
................................ 2-35
Skidding
...................................... 4-15
Sound Equipment. Adding
........................ 3-25
Spare Tire. Compact
............................. 5-33
Specifications and Capacities
...................... 6-70
Specifications. Engine
........................... 6-7 1
Speech Impaired. Customer Assistance ............... 8-4
Speedometer
................................... 2-63
Stains. Cleaning
................................ 6-52
SRS
......................................... 1-21 Starter Switch Check
............................ 7-16
Starting Your Engine
............................ 2-21
Steam
........................................ 5-15
Steering
...................................... 4-10
InEmergencies
............................... 4-12
Magnasteer
TM ................................ 4-10
Power
...................................... 4-10
Tips
........................................ 4-11
Wheel. Tilt
.................................. 2-34
Steering Wheel Controls
.................... 3.10. 3.23
Storage Compartments
........................... 2-52
Storage. Vehicle
................................ 6-32
Stuck: In Sand. Mud. Ice or Snow
.................. 5-34
SunWsors
.................................... 2-55
Sunroof
....................................... 2-55
Supplemental Restraint System
.................... 1-21
Surge Tank Pressure Cap
......................... 6-23
Symbols. Vehicle
.................................. v
SurgeTank. Coolant ............................. 5-19
Tachometer
.................................. 2-64
Taillamp Bulb Replacement
....................... 6-38
Temperature Button. Climate Control System
.......... 3-3
Temperature Control. Passenger
................... 3-10
Theft
......................................... 2-15
THEFTLOCK" ................................ 3-21
Thermostat
.................................... 6-25
Third Gear. Automatic Transaxle
................... 2-26
TapePlayerCare
............................... 3-25
TheaterDimming
............................... 2-45
9-10