1998 Oldsmobile Cutlass engine coolant

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 anfthing else.
Adding only plain water to your coorrng 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.
I 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.
6-19

Checking Coolant
The surge tank is located on the passenger’s side of the
engine compartment.
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to
blow out and burn you badly.
Never turn the surge
tank pressure cap -- even a
little
-- when the engine and radiator are hot.
When you engine is cold, the coolant level should be at
the
FULL COLD mark or slightly higher.
If the light comes on, it
means you’re
low on
engine coolant.
6-20

Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixture at the surge tank, but only when the
engine
is cool.
Surge Tank Pressure Cap
NOTICE:
Your pressure cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant
loss and possible engine damage
from overheating.
When you replace your surge tank pressure cap, a GM
cap is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat
stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an ACDelco'
thermostat is recommended.
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.
When replacing the pressure cap, make sure it is tight.
6-21
I/ I/

1 Short TripKity Maintenance Schedule I
100,000 Miles (166 000 km) (Continued)
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
cooling system and pressure cap.
An Emission Control Service.
I DATE I
MILEAGE
7-18

Long Tripmighway Maintenance Schedule 1
100,000 Miles (1 66 000 ki
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
(32°C) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
lf 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.
DATE I
MILEAGE
7-25

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
Engine Oil
Engine Coolant
Hydraulic Brake
System
FLUIDLUBRICANT
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.
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.
Delco Supreme
11 ’ Brake Fluid
(GM Part No. 12377967
or
equivalent DOT-3 Brake Fluid).
USAGE
Power Steering
System
Automatic Transaxle
Key Lock
Cylinders
Windshield
Washer Solvent Hood Latch
Assembly, Secondary Latch,
Pivots, Spring
Anchor and
Release Pawl
Hood and Door
Hinges
Weatherstrip
Conditioning
FLUIDLUBRICANT
GM Power Steering Fluid (GM
Part No. 1052884
- 1 pint,
1050017
- 1 quart, or equivalent).
DEXR0N’-III Automatic
Transmission Fluid.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 12346241 or equivalent).
GM Optikleen’ Washer Solvent
(GM Part No. 1051515)
or equivalent.
Lubriplate’ Lubricant Aerosol (GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements
of NLGI # 2,
.Category LB or GC-LB.
Multi-Pu ose Lubricant, Superlube
% (GM Part
No. 12346241 or equivalent).
Dielectric Silicone Grease (GM
Part No. 12345579 or equivalent).
7-31

rrontTowing .................................. 5-10
Fuel
.......................................... 6-3
Filling
Your Tank .............................. 6-5
Gage
....................................... 2-60
In Foreign Countries
........................... 6-5
Fuses and Circuit Breakers
....................... 6-53
Gages Engine Coolant Temperature
.................... 2-54
Fuel
....................................... 2-60
GarmentHook
................................. 2-44
GAWR ....................................... 4-31
Gear Positions, Automatic Transaxle
................ 2- 18
GloveBox
.................................... 2-41
Gross Axle Weight Rating
........................ 4-31
Gross Vehicle Weight Rating ...................... 4-31
GVWR ....................................... 4-31
Halogen Bulbs
................................ 6-28
Hazard Warning Flashers
.......................... 5-2
Head Restraints
................................. 1-5
Bulb Replacement
............................ 6-28
High/Low Beamchanger ...................... 2-30
OnReminder
................................ 2-36
Wiring
..................................... 6-52
Hearing Impaired, Customer Assistance
.............. 8-4
Heating
........................................ 3- 4
Headlamps .................................... 2-36
High-BeamHeadlamps
.......................... 2-30 Highway Hypnosis
.............................. 4-22
HillandMountainRoads
......................... 4-22
Hitches. Trailer
................................. 4-35
Hood Checking Things Under
......................... 6-8
Release
...................................... 6-8
Horn ......................................... 2-28
Hydroplaning
.................................. 4-18
Ignition Positions
.............................. 2-14
Ignition Transaxle Lock Check
.................... 7-29
Illuminated EntryExit
........................... 2-38
Inflation, Tire
.................................. 6-35
Inside Daymight Rearview Mirror
................. 2-40
Inspections
.................................... 7-30
Brakesystem
................................ 7-30
Engine Cooling System
........................ 7-30
Exhaust System
.............................. 7-30
Front-Wheel-Drive Axle Boot
.................. 7-30
Front-Wheel-Drive Axle Seal
................... 7-30
Radiator and Heater Hose
...................... 7-30
Suspension
.................................. 7-30
Throttle System
.............................. 7-30
Instrumentpanel
............................... 2-46
Cleaning
.................................... 6-45
Cluster
..................................... 2-48
Fuse Block
........................ 6-53,6-54,6-5. 5
Intensity Control
............................. 2-38
Interior Lamps
................................. 2-38
Steering
.................................... 7-30
9-5

Shoulder Belt Height Adjuster ..................... 1-14
SignalingTurns
................................ 2-30
Sound Equipment, Adding
.............. 2-16,3-21, 6-52
Spare Tire, Compact
............................. 5-32
Specifications and Capacities
...................... 6-59
Specifications, Engine
........................... 6-60
Speech Impaired, Customer Assistance
............... 8-4
Speedometer
................................... 2-49
SRS
......................................... 1-20
Stains, Cleaning
................................ 6-43
Starter Switch Check
............................ 7-28
Starting Your Engine
............................ 2-15
Stem
........................................ 5-13
Steering
....................................... 4-9
In Emergencies
............................... 4- 10
Power
....................................... 4-9
Tips ......................................... 4-9
Wheel, Tilt
.................................. 2-29
Stoplamp Bulb Replacement
...................... 6-32
Storage Compartments
........................... 2-41
Storage, Vehicle
................................ 6-28
Stuck In Sand, Mud, Ice or Snow
.................. 5-33
SunVisors
.................................... 2-44
Sunroof ....................................... 2-45
Supplemental Restraint System
.................... 1-20
Surge Tank coolant
..................................... 5-15
How to Add Coolant
.......................... 5- 17
Skidding
...................................... 4-13
Surge
Tank Pressure Cap ......................... 6-21
Symbols. Vehicle
.................................. v
Synchronization ................................ 2-10
Tachometer
.................................. 2-50
Taillamp Bulb Replacement
....................... 6-32
Tape Player Care
............................... 3-21
Theft
......................................... 2-12
Theft-Deterrent Feature.
CD Player ................ 3-18
THEFTLOCK"
................................ 3-18
Thermostat
.................................... 6-21
Third Gear. Automatic Transaxle
................... 2-20
Tilt Steering Wheel
............................. 2-29
Time. Setting the
................................ 3-6
Tire Chains
.................................... 6-42
TireLoading
................................... 4-30
Tire-Loading Information Label
................... 4-30
Tires
......................................... 6-34
Alignment and Balance
........................ 6-40
Buying New
................................. 6-38
Chains
..................................... 6-42
ChangingaFlat
.............................. 5-22
Cleaning
.................................... 6-48
Compact Spare
............................... 5-32
Inflation
.................................... 6-35
Inflation Check
............................... 7-26
Inspection and Rotation
........................ 6-36
Loading
.................................... 4-30
Pressure
.................................... 6-35
9-10
I