2004 CADILLAC XLR adding oil

Trip Computer
Oil Life Indicator
This feature lets you know when to change the engine
oil. It is based on the engine oil temperatures and
your driving patterns.
To see the display, press the information button several
times until OIL LIFE appears. If you see 99% OIL
LIFE, 99 percent of your current oil life remains.
The DIC may display a CHANGE OIL NOW message.
For more information, see
Scheduled Maintenance
on page 6-4. If you see CHANGE OIL NOW, it means
the oil life is gone and you should change the oil
right away. The system does not check how much oil
you have, so you will still have to check for that. To see
how, see
Engine Oil on page 5-13.
When the oil is changed, you will need to reset the
system. See
Engine Oil on page 5-13. Always keep a
written record of the mileage and date when you
changed your oil.
Audio System(s)
Notice:Before adding any sound equipment to
your vehicle, like a tape player, CB radio, mobile
telephone, or two-way radio, make sure that it can
be added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be added,
it is very important to do it properly. Added
sound equipment may interfere with the operation
of your vehicle's engine, radio, or other systems,
and even damage them. Your vehicle's systems may
interfere with the operation of sound equipment
that has been added improperly.
Figure out which audio system is in your vehicle, ®nd
out what your audio system can do, and how to operate
all of its controls.
Your vehicle has a feature called Retained Accessory
Power (RAP). With RAP, the audio system can be
played even after the ignition is turned off. See
ªRetained Accessory Power (RAP)º under
Ignition
Positions on page 2-19.
3-70

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under
the Hood....................................................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transmission Fluid.........................5-19
Engine Coolant.............................................5-20
Coolant Surge Tank Pressure Cap..................5-23
Engine Overheating.......................................5-23
Cooling System............................................5-26
Power Steering Fluid.....................................5-32Windshield Washer Fluid................................5-33
Brakes........................................................5-35
Battery........................................................5-38
Jump Starting...............................................5-39
Rear Axle.......................................................5-45
Headlamp Aiming...........................................5-46
Headlamp Vertical Aiming..............................5-47
Bulb Replacement..........................................5-49
Windshield Wiper Blade Replacement..............5-49
Tires..............................................................5-50
Run-Flat Tires..............................................5-56
In¯ation - Tire Pressure.................................5-57
Tire Pressure Monitor System.........................5-58
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-62
Buying New Tires.........................................5-63
Uniform Tire Quality Grading..........................5-64
Wheel Alignment and Tire Balance..................5-65
Wheel Replacement......................................5-66
Tire Chains..................................................5-68
Lifting Your Vehicle.......................................5-69
If a Tire Goes Flat........................................5-73
Section 5 Service and Appearance Care
5-1

Substitute Engine Oil:When adding oil to maintain
engine oil level, oil meeting GM Standard GM4718M
may not be available. You can add substitute oil
designated SAE 5W-30 with the starburst symbol at
all temperatures. If temperatures are above 0ÉF
(±18ÉC), you may substitute SAE 10W-30 with the
starburst symbol. Substitute oil not meeting GM
Standard GM4718M should not be used for an oil
change.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM4718M are all you will need for good performance
and engine protection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL NOW message in the DIC
will come on. Change your oil as soon as possible
within the next two times you stop for fuel. It is possible
that, if you are driving under the best conditions, the
oil life system may not indicate that an oil change
is necessary for over a year. However, your engine oil
and ®lter must be changed at least once a year and
at this time the system must be reset. Your dealer has
GM-trained service people who will perform this
work using genuine GM parts and reset the system. It is
also important to check your oil regularly and keep it
at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.
5-16

What to Use
Use a mixture of one-halfclean, drinkable waterand
one-half DEX-COOLžcoolant which will not damage
aluminum parts. If you use this coolant mixture, you do
not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle's coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your engine could catch ®re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
žcoolant.
Notice:If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost would not be covered by your
warranty. Too much water in the mixture 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 dealer check your cooling system.
Notice:If you use the proper coolant, you do not
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
5-21

{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will.
CAUTION: (Continued)
CAUTION: (Continued)
Your vehicle's coolant warning system is set
for the proper coolant mixture. With plain
water or the wrong mixture, your engine could
get too hot but you would not get the overheat
warning. Your engine could catch ®re and you
or others could be burned. Use a 50/50 mixture
of clean, drinkable water and DEX-COOL
ž
coolant.
Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
5-29

Capacities and Speci®cations
The following approximate capacities are given in English and metric conversions. Please refer toRecommended
Fluids and Lubricants on page 6-11for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 1.4 lbs 0.64 kg
Cooling System 14.8 quarts 14.0 L
Engine Oil with Filter 8 quarts 7.6 L
Fuel Tank 18 gallons 68 L
Transmission 9.5 quarts 8.5 L
Wheel Nut Torque 100 lb-ft 140Y
All capacities are approximate. When adding, be sure to ®ll to the approximate level as recommended in this
manual. Recheck ¯uid level after ®lling.
Engine Speci®cations
Engine VIN Code Transaxle Spark Plug Gap Displacement Firing Order
4.6 L PV8 A 5L50 ± E0.040 inches
(1.02 mm)281 cubic inches
(4 563 cc)1-2-7-3-4-5-6-8
5-91