2004 CADILLAC SEVILLE spark plugs

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.
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Additional Required Services
The following services should be performed at the first maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage or leaks.••••••
Inspect exhaust system for loose or
damaged components.••••••
Replace engine air cleaner filter. See
Engine Air Cleaner/Filter on page 5-18.
An Emission Control Service.••••••
Throttle body service.An Emission
Control Service. See footnotes † and (l).••••••
Change automatic transaxle fluid and
filter (severe service).See footnote (h).•••
Replace spark plugs.An Emission
Control Service.•
Engine cooling system service (or every
5 years, whichever occurs first).An
Emission Control Service. See footnote (i).•
Inspect engine accessory drive belt.An
Emission Control Service.•
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Normal Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number AC Delco®Part
Number
Engine Air Cleaner/Filter Element 25099149 A1208C
Engine Oil Filter 89017342 PF61
Fuel Filter Element 25121293 GF-627
Spark Plugs 12571535 41–987
Windshield Wiper Blade (Hook Type)
22 inches (56.5 cm)12494780 —
Engine Drive Belt Routing
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