1998 CADILLAC DEVILLE oil change

Downloaded from www.Manualslib.com manuals search engine What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the “Starburst” symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute
(API). Do not use any oil which
does not carry this Starburst symbol.
If you change your own
oil, be sure you use oil
that has the Starburst
symbol on the front of the
oil container. If you have
your oil changed
for you,
be sure the oil put into
your engine
is American
Petroleum Institute certified
for gasoline engines.
You should also use the proper viscosity oil for your
vehicle,
as shown in the following chart:
RECOMMENDED SAE VtSCOSI’lY GRADE ENGINE OILS I -
FOR BEST FUEL fnn*7Y AND COW Sgmr-*** I, SELECT THE LOWEST
SAE VISCOSITY JIL FOR THE EX1 --..- TEMPERATURE RANGE. I
HOT
WEATHER
‘OF m OC’I
+loo- - +3a
+80- - +27
+60- - t16
+40- -+4
+20- --7
0- --la
SAE sw-30
COLD
WEATHER
1- SAL I law-30
PREFERRED above W (-18%)
LoOK
FOR MIS
SYMBOL
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
6-13

Downloaded from www.Manualslib.com manuals search engine 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°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.
Engine Oil Additives
Don’t add anything to your oil. Your dealer is ready to
advise if you think something should be added.
When to Change Engine Oil
Your vehicle has an Oil Life Indicator. This feature
will let you know when to change your oil
and
filter -- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come
on
before 3,000 miles (5 000 km). Never drive your
vehicle more than
7,500 miles (12 500 km) or
12 months (whichever occurs first) without an
oil change.
The system won’t detect dust in the oil.
So, if you
drive in a dusty area, be sure to change your oil every
3,000 miles (5
000 km) or sooner. Remember to reset
the Oil Life Indicator when the oil has been changed.
For more information, see “Oil Life Indicator”
in
the Index.
6-14

Downloaded from www.Manualslib.com manuals search engine How to Reset the Oil Life Indicator
After the oil has been changed, display the OIL LIFE
LEFT message by pressing the INFORMATION (INFO)
button. Then press and hold the RESET (INFO RESET)
button until the display shows
“100.” This resets the
oil life index. The message will remain off until the
next oil change is needed. The percentage of oil life
remaining may be checked at any time by pressing the
INFORMATION (INFO) button several times until the
OIL LIFE LEFT message appears. For more
information on the oil life feature, see “Oil Life
Indicator”
in the Index.
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 dealer, a service station or a local recycling
center for help.
Air Cleaner
The air cleaner is located next to the windshield washer
fluid reservoir on the driver’s side
of the engine. Be sure
the engine has cooled before following these steps to
replace the air cleaner filter:
6-15

Downloaded from www.Manualslib.com manuals search engine Automatic Transaxle Fluid
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 backfke 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.
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
0 In hilly or mountainous terrain. regularly reaches
90°F (32°C) or higher.
0 When doing frequent trailer towing.
0 Uses such as found in taxi, police or delivery service.
0 Use such as limousine service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require change
until
the message CHANGE TRANS FLUID appears
on the Driver Information Center.
See “Scheduled Maintenance Services” in the
Maintenance Schedule booklet.
6-18

Downloaded from www.Manualslib.com manuals search engine Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant.
This coolant is designed
to remain
in your vehicle for 5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOL’ extended
life coolant.
B
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 DEX-COOL’
coolant will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 “F ( 129 O C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you
use only DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL 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. Damage caused by the
use
of coolant other than DEX-COOL’ is not
covered by your new vehicle warranty.
6-22

Downloaded from www.Manualslib.com manuals search engine Appearance Care
Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flame
if you strike a
match or get them on a hot part of the vehicle. Some are
dangerous
if you breathe their fumes in a closed space.
When you use anything from a container to clean your
vehicle, be sure to follow the manufacturer’s warnings
and instructions. And always open your doors or
windows when you’re cleaning the inside.
Never use these to clean your vehicle:
0
0
0
0
0
0
0
0
0
Gasoline
Benzene
Naphtha
Carbon Tetrachloride Acetone
Paint Thinner
Turpentine
Lacquer Thinner
Nail Polish Remover
They can all be hazardous
-- some more than
others
-- and they can all damage your vehicle, too. Don’t use any of these unless this manual says you can.
In many uses, these will damage your vehicle:
0 Alcohol
Laundry Soap
0 Bleach
0 Reducing Agents
Cleaning the Inside of Your Vehicle
Use a vacuum cleaner often to get rid
of dust and loose
dirt. Wipe vinyl or leather with a clean, damp cloth.
Your dealer has two cleaners, Multi-Purpose Interior
Cleaner and Capture Non-Solvent Dry Spot and Soil
Remover. They will clean normal spots and stains very well. You can get GM-approved cleaning products from
your dealer. (See “Appearance Care and Materials” in
the Index.)
Here are some cleaning tips:
0 Always read the instructions on the cleaner label.
Clean up stains as soon as you can -- before they set.
Carefully scrape off any excess stain.
0 Use a clean cloth or sponge, and change to a clean area
often.
A soft brush may be used if stains are stubborn.
If a ring forrns after spot cleaning, clean the entire
area immediately or
it will set.

Downloaded from www.Manualslib.com manuals search engine Replacement Bulbs
Application Numbei.
Headlamps, Composite Inner High Beam
....................... 9005
. FrontTurn Signal ..................... 3157NA
Outer
Low Beam ... 1 ................... 9006
Center High-Mounted Stoplamp (CHMSL)
... 1156
Rear
Turn Signal and Taillamp, .............. 2057
Capacities and Specifications
Engine Specifications
......... 1 Displacement 279 cubic inches
(4 565 cc)
Qpe .......................... .4.6L DOHC V8
VIN Engine Code DeVille and DeVdle d’Elegance
............ Y
Concours ............................... 9
Horsepower DeVille and DeVille d’Elegance
............ 275 (bhp) @ 5600 rpm
Concours
............. 300 (bhp) @ 6000 rpm
205 (kW)
@ 5600 rpm
224 (kW)
@ 6000 rpm Torque
DeVille and DeVille d’Elegance
........... 300 (lb-ft) 0 4000 rpm
Concours
............. 295 (lb-ft) @ 4400 rpm .
407 (N-m) @ 4000 rprn
400 (N-m)
@ 4400 rpm
Thermostat Starts To Open
. . 177-184°F (81-85°C)
Firing Order ................... 1-2-7-3-4-5-6-8
Capacities
Transaxle (4T80-E) ............ 15 quarts (14.2 L)
Crankcase (Engine Oil with Filter Change)
........... 7.5 quarts (7.1 L)
Engine Cooling System ...... 10.68 quarts (l0.i L)
Fuel Tank ................... 20 gallons (75.7 L)
R- 134a Refrigerant .............. 2 lbs. (0.91 kg)
Wheel Base
............. 113.8 inches (289.1 cm)
Length
................ 209.78 inches (532.6 cm)
Height,.
.................. 56.4 inches (143.2 cm)
Width
................... 76.5 inches (194.3 cm)
Front Tread
............... 60.9 inches (154.6 cm)
Rear Tread
............... 60.9 inches (154.6 cm)
Wheel Nut Torque ........... 100 lb-f t (140 Nam)
Vehicle Dimensions
6-66

Downloaded from www.Manualslib.com manuals search engine Battery ...................................... 6.3 1
Jump Starting
................................. 5-3
Not Charging Message
......................... 2-82
Volts High Message
........................... 2-83
Volts Low Message
........................... 2-83
Warnings
................................ 5-3. 5-5
Battery Saver ............................. 2-46. 2-48
Exterior Lighting
............................. 2-46
Inadvertent Power
............................ 2-48
BBB Auto Line
................................ 7- 11
Better Business Bureau Mediation
.................. 7- 11
Blizzard
...................................... 4-27
Brake Replacement. Remote Keyless Entry
............... 2-9
Adjustment
.................................. 6-30
Fluid
....................................... 6-28
Master Cylinder
.............................. 6-28
Parking ..................................... 2-26
PedalTravel
................................. 6-30
Replacing System Parts
........................ 6-3 1
System Warning Light
......................... 2-69
Trailer
...................................... 4-35
Transaxle Shift Interlock
....................... 2-31
Wear
....................................... 6-30
Brake Vacuum Problem Message
.................. 2-83
Brakes. Anti-Lock
............................... 4-7
Braking ........................................ 4-6
Braking in Emergencies .......................... 4- 10
Break-In. New Vehicle .......................... 2-18 Brightness Control
.............................. 2-46
Bulb Replacement
.............................. 6-32
BTSI
......................................... 2-31
Capacities and Specifications
.................... 6-66
Carbon Monoxide
.................... 2.32.4.28. 4.35
Cassette Tape Player
.................. 3.16.3.19. 3.28
Cassette Tape Player Care
........................ 3-39
Cellular Telephone
.............................. 2-56
Center Console Storage Area
...................... 2-54
Center Passenger Position
........................ 1-29
Central Door Unlocking System
.................... 2-5
Chains. Safety
................................. 4-35
Change Engine Oil Message
...................... 2-83
Change Trans Fluid Message
...................... 2-83
Changing a Flat Tire
............................. 5-24
Charging System Indicator Light
................... 2-69
Check Brake Fluid Level Message
................. 2-83
Check Coolant Level Message
..................... 2-84
Check Fuel Gage Message
........................ 2-84
Check Gas Cap Message
......................... 2-84
Check Oil Level Message
........................ 2-84
Check Washer Fluid Message
..................... 2-84
Checking Your Restraint Systems
.................. 1-53
Chemical Paint Spotting
.......................... 6-55
Cassette Tape Player Errors
............. 3.16.3.20.
3-28
Center High-Mounted Stoplamp Bulb Replacement
.... 6-35
Certification Label
.............................. 4-30
Chains. Tire
................................... 6-48
8-2