spark plugs Oldsmobile Silhouette 2004 Owner's Manuals

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 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 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 ®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.
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Additional Required Services
Thefollowing services should be performed at the ®rst 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 ®lter.
See
Engine Air Cleaner/Filter on
page 5-18.An Emission Control
Service.······
Change automatic transaxle
¯uid and ®lter (severe service).
See footnote (h).···
Change automatic transaxle ¯uid
and ®lter (normal service).·
Replace spark plugs and inspect
spark plug wires.
An Emission
Control Service.·
6-6

Normal Maintenance Replacement Parts
Part GMžPart Number ACDelcožPart Number
Engine Air Cleaner/Filter 25099149 A1208C
Engine Oil Filter 25010792 PF47
Passenger Compartment Air Filter Kit 52482929 Ð
Spark Plugs 12568387 41-101
Windshield Wiper Blades
Length
Type24.0 inches (60.0 cm)
Shepherd's Hook
Wiper Blade (Backglass)
Length
Type16.0 inches (40.6 cm)
Shepherd's Hook
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