engine coolant OLDSMOBILE AURORA 1995 User Guide

How to Add Coolant to the Coolant Surge
Tank
If you haven't found a problem yet. but the coolant level
isn't at FULL COLD. add a SO/SO mixture of clecrn
c1*trreI- (preferably distilled) and a proper antifreeze at the
coolant surge tank, but be
SLIE the cooling system.
including the coolant surge tank pressure
cap, is cool
before
you do it. (See "Engine Coolant" in the Index for
more information about the proper coolant mix.)
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I NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core
and other parts. So
use the recommended coolant.
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4. With the coolant surge tank pressure cap off', start the
engine and
let it run until YOLI can feel the upper r it d' lator
hose getting hot. Watch
out for the engine fans.
By this time, the coolant level inside the coolant surge
tank
may be lower. If the level is lower, add more of'the
proper mix
to the coolant surge tank until the level
reaches
FULL COLD.
5. Then replace the
pressure cap.
Be
sure the pressure
cap
is tight.
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4.0L V8 Engine (Code C)
P P P
\
When you open the hood, you’ll see:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Windshield Wdsher Fluid Reservoir
Power Steering Fluid Reservoir
Brake Fluid Reservoir
Engine Coolant Surge Tank
Air Cleaner
Automatic Transaxle Fluid Dipstick
(behind air cleaner)
Engine Oil Dipstick
Engine Oil Fill Cap
Remote Positive Battery Terminal
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Engine Coolant Heater
An engine coolant heater can be a big help if you have
to park outside
in very cold weather, 0°F (- 18°C) or
colder.
If your vehicle has this option, see “Engine
Coolant Heater”
in the Index.
Air Cleaner
What to Do with Used Oil
Did you know that used engine oil contains certain
elements that may be unhealthy for your skin and could
even cause cancer‘? Don’t
let used oil stay on your skin
for very long. Clean your skin and nails with soap and
water, or a good hand cleaner- Wash
or properly throw
away clothing or rags containing used engine oil. (See
the manufacturer’s warnings about the use and disposal
of oil products.)
Used oil can be
a real threat to the environment. If you
change your own oil, be sure to drain
all free-flowing oil
from the filter before disposal. Don’t ever dispose
of oil
by putting
it in the trash, pouring it on the ground, into
sewers,
or into streams or bodies of water. Instead,
recycle
it by taking it to a place that collects used oil. If
you have a problem properly disposing of your used oil,
ask your retailer, a service station or a local recycling
center for help.
To Check or Replace the Air Filter
1. Remove hose (A) from resonator channel.
2. Release tension of the wing screw clamp (B) on the
air intake duct where
it attaches to the air cleaner
cover near the top of
the engine. Just turn the wing
screw counterclockwise, then detach the duct from
the air cleaner cover.
3. Push the duct and resonator assembly (C) rearward
and up, and hold out of the way.
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Engine Coolant
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.
The proper coolant for your Aurora will:
0 Give freezing protection down to -34°F (-37°C)
0 Give boiling protection up to 262°F (128°C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights work as they should.
What to Use
Use a mixture of one-half c.lt.crr~ wwtor (preferably
distilled) and one-half antifreeze that meets “GM
Specification 182S-M,” which won‘t damage aluminum
parts.
You call also use a recycled coolant conforming to
GM Specification 1825-M
with a complete coolant tlush
and refill. Use GM Engine Coolant Supplement (sealer)
with any cotnplete coolant flush and refill. If you use
this mixture, you don‘t need to add anything else.
A
special procedure is required for adding sealer; see the
ALI~o~~ Service Manual. (To order a service 1nanual. see
”Service Publications“
in the Index.)
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NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
Adding Coolant
The engine coolant
surge tank is located
on the driver’s side
of
the engine
compartment.
To Check Coolant
When your engine is cold, the coolant level should be at
the FULL COLD mark or
a little higher. If the message
LOW ENGINE COOLANT is displayed on your
message center, it means you’re low on engine coolant.
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To Add Coolant
If you need more coolant, add the proper mix at the
surge tank, but only when the engine is cool.
When replacing the pressure cap, make sure it is tight.
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 AC@ thermostat
is recommended.
Power Steering Fluid
How To Check Power Steering Fluid
When the engine compartment is cool, unscrew the cap
and wipe the dipstick with a clean rag. Replace the cap
and completely tighten it. Then remove the cap again
and look at the fluid level on the dipstick.
The level should be at the
FULL COLD mark. Add
enough fluid to bring the level up to the mark.
A fluid loss in this system could indicate a problem.
Have the system inspected and repaired.
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1 Maintenance Schedule I I ~
30,000 Miles (50 000 km) (Continued)
See “Engine Coolant” in the Index for what
to use.
An Emission Control Service.
0 Inspect spark plug wires. An Emission
Contrd Service.
0 Replace air cleaner filter. Replace filter
more often under dusty conditions.
An EI;I1issim Control Service.
c] Inspect fuel tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for
any
damage. Replace parts as needed.
An Emission Corztrol Service.
0 Rotate tires. See “Tire Inspection and
Rotation”
in the Index for proper rotation
pattern and additional information.
DATE
SERVICED BY ACTUAL MILEAGE
33,000 Miles (55 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
AH Emission Control Service.
DATE
SERVICED BY ACTUAL MILEAGE
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I Maintenance Schedule I 1
57,000 Miles (95 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service. *
I DATE I ACTUALMILEAGE ISERVICED BY:^
60,000 Miles (100 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service. ‘I’
0 Lubricate the suspension and steering
linkage, transaxle shift linkage, parking
brake cable guides and underbody contact
points and linkage (or every
6 months,
whichever occurs first).
0 Inspect engine accessory drive belt (or
every
24 months, whichever occurs first).
An Emission Control Sewice.
0 Drain, flush and refill cooling system (or
every
24 months, whichever occurs first).
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test the
cooling system and pressure cap. See
“Engine Coolant”
in the Index for what to
use. An Emission Control Service.
(Continued)
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