1997 Oldsmobile Aurora Owner's Manuals

I RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS I
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY
GRADE 011 FOR THE EXPECTED TEMPERATURE RANGE.
~ ~~~~~ ~- ~~ ~ ~~~
HOT
WEATHER
,-, ’ “F “C
+loo- - t38
+eo- - t27
+60--t16
t401 ?t4
+20 --7
0 --le

I
I
COLD
WEATHER
II -1 I
SAE 5W-30
LOOK
SAE 1OW-30 PREFERRED above b”F (-18°C)
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENOED
As shown in the chart, SAE low-30 is best for your
vehicle. However, you can use SAE
5W-30 if it’s going
to be colder than
60°F (16°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.
I 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.
If
you are in an area where the temperature falls below
-20°F
(-29”C), consider using either an SAE 5W-30
synthetic oil or an SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
6-13

Engine Oil Additives
Don’t add anything to your oil. Your Aurora retailer is
ready to advise
if you think something should be added.
When to Change Engine Oil
If any one of these is true for you, use the short trip/city
maintenance schedule:
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, use the long triphighway
maintenance schedule. 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.
6-14

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.
Air Cleaner
To Check or Replace the Air Filter:
1. Remove hose from resonator channel.
6-15

2. Release tension of the wing screw clamp 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 rearward and
up, and hold out
of the way.
4. There’s a temperature sensor on the corner of the air
cleaner cover. Release the sensor’s electrical
connector retainer, and pull up.
6-16

- , . .. .‘,. .
6. Remove the air filter. 5. Unsnap the two clamps by pushing down on
the top
of the air cleaner cover and pushing in on the
clamps toward the center
of the cover. Then remove
the cover. 7. Install the new air filter and reverse all steps to
reinstall the cover, electrical wires, duct and clamp.
Be sure
the tabs of the air cleaner cover fit into the
slots
of the air cleaner housing. Then make sure both
clamps are
fully engaged.
Refer
to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services”
in the Index.
6- 17

Operating the engine with the air cleaner off can
cause you or others to be burned. The air cleaner
not only cleans the air, it stops flame if the engine
backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it off, and be careful working on the engine with
the air cleaner
off.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
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:
0 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.
6-18

How to Check
Because this operation can be a little difficult, you may
choose to have this done at your Aurora retail facility
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.
To get the right reading, the fluid should be at normal
operating temperature, which
is 180°F to 200°F (82°C
to 93°C).
Get the vehicle warmed up by driving about
15 miles
(24 km) when outside temperatures are above 50°F
(10°C). If it's colder than 50°F (lO"C), you may have
to drive longer.
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.
Wait at least 30 minutes before checking the transaxle
fluid level if
you have been driving:
0 When outside temperatures are above 90 OF (32 O C).
0 At high speed for quite a while.
In heavy traffic -- especially in hot weather.
While pulling a trailer.
Checking the Fluid Level
Park your vehicle on a level place. keep the
engine running.
With the parking brake applied, place the shift lever
in PARK
(P).
With your foot on the brake pedal, move the shift
lever through each gear range, pausing for about
three seconds in each range. Then, position the shift
lever in PARK (P).
0 Let the engine run at idle for three to five minutes.

Then, without shutting off the engine, follow
these steps:
1. Pull out the dipstick and
wipe it with a clean rag
or paper towel.
2. Push it back in all the way, wait three seconds and
then pull it back out again.
3. Check both sides of the dipstick, and read the
lower level. The fluid level must be in the
cross-hatched area.
4. If the fluid level is in the acceptable range, push the
dipstick back in all the way.