RECOMMENOEO SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COUl STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE
011 FOR ME EXPECTED TEMPERATURE RANBE.
HOT
WEATHER I "F
+ 100
t 20
:::
-
OI
+3
+i
+l
t4
-7
-1 ,- SAE I 1UW-30
PREFERRED above 0°F 1-18"Q . ~, SAL 5w-30
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER GWE OIL NOT RECOMMENDED
As shown in the chart, SAE 1OW-30 is best for your
vehicle. However, you can use
SAE 5W-30 if it's
going to be colder than
60" F (1 6 O C) before your
next oil change. When it's very cold, you should use
SAE 5W-30. These numbers on an oil container show
its viscosity,
or thickness. Do not use other viscosity
oils, such as
SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines "Starburst" symbol. Failure to use the
recommended oil can result in engine damage
not covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
Engirn v~l AUUlLl V GI -.
Don't add anything to your oil. Your Aurora retailer is
ready to advise if you think something should be added.
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When to Change Engine Oil
See if any one of these is true for you:
0
0
0
0
0
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
You frequently tow a trailer or use a carrier on top of
your vehicle.
The vehicle is used for delivery service, police, taxi
or other commercial application.
Driving under these conditions causes engine oil
to
break down sooner. If any one of these is true for your
vehicle, then you need to change your oil and filter
every
3,000 miles (5 000 km) or 3 months -- whichever
occurs first. (See “Change Oil Message” in the Index.)
If
the CHANGE OIL NOW message appears in the Driver
Information Center, you should change your oil.
If none of them is true, change the oil and filter every
7,500 miles (12 500 km) or 12 months -- whichever occurs first. Driving a vehicle
with a fully warmed
engine under highway conditions causes engine oil to
break down slower.
(See “Change Oil Message” in the Index.) Always reset
the engine oil life
to 100% after every oil change.
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.
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Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level
is when the engine oil is changed.
Change both the fluid and filter every
50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more
of these conditions:
In heavy city traffic where the outside temperature
regularly reaches
90 OF (32 O C) or higher.
In hilly or mountainous terrain.
0 When doing frequent trailer towing.
0 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.
See “Scheduled Maintenance Services” in the Index.
How to Check
Because this operation can be a little difficult, you
may choose to have this done at your Aurora retailer
Service Department.
If
you do it yourself, be sure to follow all the instructions
here, or
you could get a false reading on the dipstick.
I NOTICE:
Too much or too little fluid can damage your
transaxle.
Too much can mean that some of the
fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be sure to
get an accurate reading
if you check your
transaxle fluid.
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Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL TM (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain in your
vehicle for
5 years or 100,000 miles (1 66 000 km),
whichever occurs first.
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 the proper coolant for
your Aurora will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant it is important that you use
DEX-COOL TM (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If
silicated coolant 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.
What to Use
Use a mixture of one-half cEean, water (preferably
distilled) and one-half
DEX-COOL TM (orange-colored,
silicate-free) antifreeze that meets GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If
you use this mixture, you don’t need to add anything
else. A special procedure is required for adding sealer;
see the Aurora Service Manual.
(To order a service
manual, see “Service Publications’’ in the Index.)
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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 mix will. Your vehicle’s coolant warning
system
is set for the proper coolant mix. With
plain water or the wrong mix, 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 mix of clean
water and
DEX-COOL TM (orange-colored,
silicate-free) antifreeze.
NOTICE:
If you us& 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.
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.
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NOTICE:
a
a Using the wrong fluid can badly damage
brake system parts. For example, just
a few
drops of mineral-based oil, such
as engine
oil, in your brake system can damage brake
system parts
so badly that they’ll have to be
replaced. Don’t let someone put in the
wrong kind of fluid.
If you spill brake fluid on your vehicle’s
painted surfaces, the paint finish can be
damaged. Be careful not to spill brake fluid
on your vehicle.
If you do, wash it off
immediately. See “Appearance Care” in
the Index.
Brake Wear
Your Aurora has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make a
high-pitched warning sound when the brake pads are worn
and new pads
are needed. The sound may come and go or
be heard all the time your vehicle is
moving (except when
you are pushing on
the brake pedal firmly).
The brake wear warning sound means that sooner
or later your brakes won’t work well. That could
lead to an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
I NOTICE:
Continuing to drive with worn-out brake pads
could result in costly brake repair.
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Capacities and Specifications
Automatic Transaxle (Overdrive)
When draining or replacing torque converter, more fluid may be needed.
Pan Removal and Replacement .......................................... 6.5 quarts (6.0 L)
After Complete Overhaul .............................................. 11 quarts (10.5 L)
Cooling System ....................................................... 13 quarts (12.0 L)
Engine Crankcase ...................................................... 7 quarts (6.6 L)
When changingfilter, up to 0.5 quart (0.5 L) more oil may be needed.
Fuel Tank ......................................................... 19.4 gallons (73.4 L)
Windshield Washer Fluid Tanks ........................................ 3.8 quarts (3.6 L)
Windshield Wiper Blades (6.32 Pin Type) ............................... 22 inches (565 mm)
Power Steering
Pump Only ............................................................. 1 pint (0.5 L)
Complete System ..................................................... 1.5 pints (0.7 L)
Tire Pressures, Sizes ....................... See Tire-Loading Information label on driver’s door.
Wheel Nut Torque .................................................. 100 lb-ft (140 Nam)
Refrigerant (R-l34a), Air Conditioning .................. See refrigerant change label the hood.
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Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used.
If you’re not sure, ask your Aurora retailer.
Vehicle Dimensions
Length ................ 205.4 inches (5 217 mm)
Width
.................. 74.4 inches (1 890 mm)
Height
.................. 55.4 inches (1 407 mm)
Wheelbase
............. 11 3.8 inches (2 89 1 mm)
Front Tread
.............. 62.5 inches (1 587 mm)
Rear Tread
.............. 62.5 inches (1 587 mm)
Engine Specifications
VIN Engine Code ........................... C
Type
.................................... V8
Displacement ........................ 4.0 Liters
Horsepower
............................. 250
Compression Ratio
...................... 10.3: 1
Firing Order
.................... -2-7-3-4-5-6-8
Thermostat Temperature
Specification
.................... 180°F (82°C)
Normal Maintenance
Replacement Parts
Air Cleaner Element .......... AC Type A- 1096C
Engine
Oil Filter ................ AC Type PF-58
Spark Plugs
................... AC Type041 -900
uap: 0.050 inch (1.52 mm)
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