fuel additives CADILLAC SEVILLE 2004 5.G Owners Manual

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Specifications....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
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 Transaxle Fluid..............................5-20
Engine Coolant.............................................5-23
Coolant Surge Tank Pressure Cap..................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-29
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-43
Headlamp Aiming...........................................5-49
Headlamp Horizontal Aiming...........................5-51
Headlamp Vertical Aiming..............................5-51
Bulb Replacement..........................................5-53
High Intensity Discharge (HID) Lighting............5-53
Halogen Bulbs..............................................5-54
Headlamps..................................................5-54
Front Turn Signal Lamps...............................5-57
Center High-Mounted
Stoplamp (CHMSL)....................................5-58
Taillamps and Turn Signal Lamps...................5-58
Replacement Bulbs.......................................5-59
Windshield Wiper Blade Replacement..............5-60
Tires..............................................................5-61
Inflation - Tire Pressure.................................5-68
Tire Pressure Monitor Operation.....................5-69
Tire Inspection and Rotation...........................5-71
When It Is Time for New Tires.......................5-72
Buying New Tires.........................................5-73
Uniform Tire Quality Grading..........................5-74
Section 5 Service and Appearance Care
5-1

Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work
properly. You should not have to add anything to your
fuel. However, some gasolines contain only the
minimum amount of additive required to meet U.S.
Environmental Protection Agency regulations. General
Motors recommends that you buy gasolines that
are advertised to help keep fuel injectors and intake
valves clean. If your vehicle experiences problems due
to dirty injectors or valves, try a different brand of
gasoline.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specifications described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.Some gasolines that are not reformulated for
low emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT. General
Motors does not recommend the use of such gasolines.
Fuels containing MMT can reduce the life of spark
plugs and the performance of the emission control
system may be affected. The malfunction indicator lamp
may turn on. If this occurs, return to your authorized
GM dealer for service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to find. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel would not
be covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
5-6

Notice:Use only engine oil identified as meeting
GM Standard GM6094M and showing 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 of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M 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 filter. 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 ENGINE OIL message in the
Driver Information Center (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 filter must be
changed at least once a year and at this time the system
must be reset. Your dealer has GM-trained 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

A
Accessory Power Outlets.................................3-26
Adding Washer Fluid.......................................5-37
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-96
Adjusting the Speakers
(Balance/Fade)....................................3-78, 3-85
Air Bag
Readiness Light..........................................3-41
Air Bag System, Supplemental Inflatable
Restraint (SIR)............................................1-41
Air Cleaner/Filter, Engine.................................5-18
Airbag Sensing and Diagnostic Module (SDM)....7-10
AM .............................................................3-100
Antenna, Diversity Antenna System..................3-103
Antenna, XM™ Satellite Radio Antenna System . . . 3-103
Anti-lock Brake System (ABS)............................ 4-6
Anti-Lock Brake, System Warning Light..............3-44
Anti-Pinch Feature..........................................2-18
Appearance Care............................................5-87
Care of Safety Belts....................................5-90
Chemical Paint Spotting...............................5-93
Cleaning the Inside of Your Vehicle................5-88
Cleaning the Outside of Your Vehicle..............5-90
Finish Damage............................................5-92
Sheet Metal Damage...................................5-92
Underbody Maintenance...............................5-93
Vehicle Care/Appearance Materials................5-94Appearance Care (cont.)
Weatherstrips..............................................5-90
Ashtrays........................................................3-27
Assist Handles...............................................2-49
Audio System(s).............................................3-75
Audio Steering Wheel Controls....................3-100
Care of Your Cassette Tape Player...............3-101
Care of Your CD Player..............................3-102
Care of Your CDs......................................3-102
Console-Mounted CD Changer......................3-95
Diversity Antenna System............................3-103
Navigation/Radio System..............................3-95
Radio Personalization with Home and
Away Feature..........................................3-98
Radio with Cassette and CD.........................3-83
Radio with CD............................................3-76
Setting the Time for Radios with Radio
Data Systems (RDS)................................3-75
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-75
Theft-Deterrent Feature................................3-99
Understanding Radio Reception...................3-100
XM™ Satellite Radio Antenna System...........3-103
Auto Exit Seat................................................3-65
Auto Exit Steering Wheel.................................3-66
Automatic Level Control...................................4-36
Automatic Transaxle
Fluid..........................................................5-20
Operation...................................................2-28
1

F
Filter
Engine Air Cleaner......................................5-18
Finding a Program Type (PTY) Station
(XM™ Only).......................................3-78, 3-86
Finding a Station....................................3-76, 3-84
Finish Care....................................................5-91
Finish Damage...............................................5-92
Flat Tire........................................................5-77
Flat Tire, Changing.........................................5-78
Floor Mats.....................................................2-50
Fluid
Automatic Transaxle.....................................5-20
Power Steering...........................................5-36
Windshield Washer......................................5-37
FM Stereo....................................................3-100
Fog Lamp Light..............................................3-50
Fog Lamps....................................................3-19
Following Distance..........................................4-41
Front Ashtray.................................................3-27
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7Fuel (cont.)
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-51
Gasoline Octane........................................... 5-4
Gasoline Specifications.................................. 5-5
Fuses
Fuses and Circuit Breakers...........................5-97
Windshield Wiper.........................................5-96
G
Gage
Engine Coolant Temperature.........................3-45
Fuel..........................................................3-51
Speedometer..............................................3-39
Tachometer.................................................3-40
Garage Door Opener.......................................2-44
Garment Hooks..............................................2-49
Gasoline
Octane........................................................ 5-4
Specifications............................................... 5-5
Gate Operator and Canadian Programming........2-47
Glove Box.....................................................2-49
GM Mobility Program for Persons
with Disabilities............................................. 7-5
6