2003 CADILLAC SEVILLE open gas tank

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. 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
speci®cations 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 maybe 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 ®nd. 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.
Filling Your Tank
{CAUTION:
Fuel vapor is highly ¯ammable. It burns
violently, and that can cause very bad injuries.
Do not smoke if you are near fuel or refueling
your vehicle. Keep sparks, ¯ames and smoking
materials away from fuel.
5-6

{CAUTION:
If you get fuel on yourself and then something
ignites it, you could be badly burned. Fuel can
spray out on you if you open the fuel cap too
quickly. This spray can happen if your tank is
nearly full, and is more likely in hot weather.
Open the fuel cap slowly and wait for any
ªhissº noise to stop. Then unscrew the cap all
the way.
Be careful not to spill fuel. Clean fuel from painted
surfaces as soon as possible. See
Cleaning the Outside
of Your Vehicle on page 5-86.When you put the fuel cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make
sure you fully install the cap. The diagnostic system can
determine if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See
Malfunction Indicator Lamp on
page 3-47.
The CHECK GAS CAP message in the Driver
Information Center (DIC) will come on if the fuel cap is
not properly reinstalled.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer can get one for you.
If you get the wrong type, it may not ®t properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. See ªMalfunction Indicator Lampº in the
Index.
5-9

F
Filter.............................................................5-19
Engine Air Cleaner......................................5-19
Finding a PTY Station (RDS and XMŸ).............3-92
Finding a PTY Station (XMŸ Only)...................3-81
Finding a Station....................................3-80, 3-89
Finish Care....................................................5-87
Finish Damage...............................................5-89
Flat Tire, Changing.........................................5-74
Flat Tire........................................................5-73
Floor Mats.....................................................2-49
Fluid.............................................................5-21
Automatic Transaxle.....................................5-21
Power Steering...........................................5-38
Windshield Washer......................................5-39
FM Stereo....................................................3-103
Fog Lamp Light..............................................3-51
Fog Lamps....................................................3-18
Following Distance..........................................4-39
Footnotes........................................................ 6-5
Front Ashtray.................................................3-27
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-52
Gasoline Octane........................................... 5-4Fuel (cont.)
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-13
Fuses...........................................................5-93
Fuses and Circuit Breakers...........................5-93
Windshield Wiper.........................................5-92
G
Gage............................................................3-46
Engine Coolant Temperature.........................3-46
Fuel..........................................................3-52
Speedometer..............................................3-39
Tachometer.................................................3-41
Garage Door Opener.......................................2-44
Garment Hooks..............................................2-49
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Gate Operator and Canadian Programming........2-47
Glove Box.....................................................2-48
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamp High/Low-Beam Changer...................3-10
6