1998 Oldsmobile Achieva engine

A CAUTION:
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.
I NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So
use the recommended coolant.
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.
5-21

3. Then fill the coolant surge tank with the proper
mixture, up
to FULL COLD, or just above the small
cylinder at the base
of the opening.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the engine
cooling fan.
By this time, the coolant level inside the coolant
surge tank may be lower.
If the level is lower, add
more
of the proper mixture to the coolant surge tank
until the level reaches
FULL COLD, or just above
the small cylinder at the base of the opening.
5-23

If You’re Stuck: In Sand, Mud,
Ice
or Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you must use caution.
IN:
If you let your tires spin at high speed, they can
explode, and you or others could be injured. And,
the transaxle or other parts of the vehicle can
overheat. That could cause an engine
compartment fire or other damage. When you’re
stuck, spin the wheels
as little as possible. Don’t
spin the wheels above
35 mph (55 kmh) as shown
on the speedometer.
I NOTICE:
Spinning your wheels can destroy parts of your
vehicle
as well as the tires. If you spin the wheels
too fast while shifting your transaxle back and
forth, you can destroy your transaxle.
For information about using tire chains on your vehicle,
see “Tire Chains” in the Index.
Rocking Your Vehicle To Get It Out
First, turn your steering wheel left and right. That will
clear the area around your front wheels.
If your vehicle has
the Enhanced Traction System, you should
turn the system
off. (See “Enhanced Traction System” in the Index.) Then
shift back and
forth between REVERSE (R) and a forward
gear, spinning the wheels as little as
possible. Release the
accelerator pedal while you
shift, and press lightly on the
accelerator pedal when the transaxle is in gear.
If that
doesn’t get you out after a few tries, you may need to be
towed out. If you do need to be towed out, see “Towing
Your Vehicle”
in the Index.
5-37

Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows
how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3
6-5
6-5
6-8
6-8
6-
12
6- 17
6-18
6-2 1
6-25
6-25
6-26
6-27
6-3
1
Service
Fuel
Fuels in Foreign Countries
Filling Your Tank
Filling a Portable Fuel Container
Checking Things Under the Hood
Engine Oil
Air Cleaner Automatic Transaxle Fluid
Engine Coolant
Thermostat Power Steering Fluid
Windshield Washer Fluid Brakes
Battery 6-32
6-3 6 6-36
6-44
6-45
6-47
6-48
6-5
1
6-52
6-52
6-57
6-58
6-58
6-59
6-59 Bulb Replacement
Windshield Wiper
Blade Replacement
Tires
Appearance Care
Cleaning the Inside of Your Vehicle
Care
of Safety Belts
Cleaning the Outside
of Your Vehicle
Appearance
Care Materials Chart
Vehicle Identification Number (VIN)
Electrical System
Replacement Bulbs
Capacities and Specifications
Air Conditioning Refrigerants
Normal Maintenance Replacement Parts Vehicle Dimensions

You can be injured and your vehicle could be
damaged
if you try to do service work on a
vehicle without knowing enough about it.
Be sure you have sufficient knowledge,
experience, the proper replacement parts
and tools before you attempt any vehicle
maintenance task.
Be sure to use the proper nuts, bolts and
other fasteners. “English” and “metric”
fasteners can be easily confused.
If you use
the wrong fasteners, parts can later break
or fall off. You could be hurt.
Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your vehicle can
affect the airflow around it. This may cause wind noise
and affect windshield washer performance. Check with
your retailer before adding equipment to the outside of
your vehicle.
Fuel
Use regular unleaded gasoline rated at 87 octane or
higher. At a minimum, it should meet specifications
ASTM D4814 in the United States and CGSB
3.5-M93
in Canada. Improved gasoline specifications have
been developed by the American Automobile
Manufacturers Association (AAMA) for better
vehicle performance and engine protection. Gasolines
meeting the AAMA specification could provide
improved driveability and emission control system
protection compared to other gasolines.
Be sure the posted octane
is at least 87. If the octane is
less than 87, you may get a heavy knocking noise when
you drive.
If it’s bad enough, it can damage your engine.
If you’re using fuel rated at 87 octane or higher and you
hear heavy knocking, your engine needs service. But
don’t worry if you hear a little pinging noise when
you’re accelerating or driving up a hill. That’s normal,
and you don’t have to buy a higher octane fuel to get
rid of pinging. It’s the heavy, constant knock that
means you have a problem.
6-3

If your vehicle is certified to meet California Emission
Standards (indicated on the underhood emission control
label), it
is designed to operate on fuels that meet
California specifications.
If such fuels are not available
in states adopting California emissions standards, your
vehicle will operate satisfactorily on fuels meeting
federal specifications, but emission control system
performance may be affected. The malfunction indicator
lamp on your instrument panel may turn on and/or your
vehicle may fail a smog-check test. If this occurs, return
to your authorized Oldsmobile retailer for diagnosis to
determine the cause of failure. In the event it
is
determined that the cause of the condition is the type of
fuels used, repairs may not be covered by your warranty.
Some gasolines that are not reformulated
for low
emissions contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask your service station operator whether or not his fuel
contains
MMT. General Motors does not recommend the
use of such gasolines. If fuels containing MMT are used,
spark plug life may be reduced and your emission
control system performance may be affected. The
malfunction indicator lamp on your instrument panel
may turn on. If this occurs, return
to your authorized
Oldsmobile retailer for service. To
provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent deposits from forming in your engine and fuel system, allowing your emission control system to
function properly. Therefore, you should not have to
add anything to the fuel, In addition, gasolines
containing oxygenates, such as ethers and ethanol, and
reformulated gasolines may be available in your area to
help clean the air. General Motors recommends that you
use these gasolines
if they comply with the
specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don’t use it. It can corrode
metal parts in your fuel system and also damage plastic and rubber parts. That damage wouldn’t
be covered under your warranty.
6-4

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:
0 Dispense gasoline only into approved
containers.
0 Do not fill 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.
Checking Things Under the Hood
A "P 3N:
&I - --
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto
a hot engine.
6-8

2.4L (CODE T) Engine
When you open the hood, you’ll see:
A. Engine Coolant Surge Tank
B. Engine Oil Fill Cap
C. Engine Oil Dipstick
D. Automatic Transaxle Dipstick
E. Power Steering Fluid Reservoir
E Brake Fluid Reservoir
G. Windshield Washer
Fluid Reservoir
H. Air Cleaner
1. Battery