1998 CADILLAC DEVILLE engine

Downloaded from www.Manualslib.com manuals search engine When you open the hood, you'll see:
A. Battery D. Oil Fill Location G. Transaxle DipsticMFluid
B. Coolant Fill Location E. Engine Oil Dipstick Location Fill Location
C. Power Steering Fluid F. Brake Master Cylinder H. Air Cleaner
I. Windshield Washer Fluid
Before closing the hood,
be sure all filler caps are on properly. Then pull the hood down\
and close it firmly.

Downloaded from www.Manualslib.com manuals search engine Underhood Lamp
Turn the parking lamps on to operate the underhood
lamp. The underhood lamp will come on when the
ho0.d
is opened.
Engine Oil
~MIUM UNLEADED - -
FUEL ONLY Dg Dg Dg MZ TRIP ; 4 4.
HHBHHHrn
..". ."... "... .... -... . I ...... "... ........... ..... ....... .... "". . ..... ,:*. :::: ....... :::: :. ... "I. ."." "... ". " ". "..."... U..".. . ..... . : f. ,I.! I" ;
A CHECK OIL LEVEL message will appear when the
engine oil is approximately
1 quart (1 L) low. If the
' message is displayed, check the dipstick level and-add
oil as needed.
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be
warm and the vehicle must be on level ground.
The engine
oil dipstick is
located behind the radiator
on the driver's side of the
engine. The black handle
'says
ENGINE OIL on it.
Turn off the engine .and
give the
oil a few minutes
to drain back into the
oil
pan.' If you don't, the oil
dipstick might not show
the actual'level.
I
6-11

Downloaded from www.Manualslib.com manuals search engine Checking Engine Oil
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
When to Add Engine Oil
If the oil is at or below the ADD line, then you’ll need
to add at least one quart of oil. But you must use the
right kind. This part explains what kind
of oil to use. For
crankcase capacity, see “Capacities and Specifications”
in the Index.
I NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the upper
mark that shows the proper operating range,
your engine could be damaged.
The oil fill cap is located
behind the radiator on the
passenger’s side of the
engine.
Turn the cap to the
left to remove it.
Be sure to fill
it enough to put the level somewhere in
the proper operating range. Push the dipstick all the way
back in when you’re through.
6-12

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 1. Disconnect the Intake
Air Temperature (IAT)
sensor from the base of
the air cleaner.
2. With a screwdriver,
loosen the air duct
clamp, which is located at the mass airflow
sensor end of the
air duct.
L
4. Unhook both air cleaner cover latches. One latch is
located near the radiator hose (not shown) and the
other latch-is located next to the
UT sensor.
5. Pivot the air cleaner and air duct assembly toward
the front of the vehicle. Remove the cover.
3. Disconnect the air duct from the mass aifflow sensor.
6-16

Downloaded from www.Manualslib.com manuals search engine 6. Take out the air cleaner filter and remove any
loose debris that may be found laying in the air
cleaner base.
7. Install a new air filter element. See “Normal
Maintenance Replacement
Parts” in the Index. Follow these steps to reinstall the air cleaner assembly:
1.
2.
3.
4.
5.
Slide
the air cleaner lid into the slots in the front
edge of
the air cleaner base.
Pivot the air cleaner cover and the air duct assembly
downward. Make sure that both latches
are secure
and fully engaged.
Reinstall the clean air duct over the mass airflow sensor. Make sure that the duct is secure around the
entire outer edge
of the sensor.
Tighten the air duct clamp.
Reconnect the IAT sensor.
Refer
to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services” in the
Maintenance Schedule booklet.