spark plugs CHEVROLET IMPALA 2009 9.G Owners Manual

However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors
and intake valves clean, or if the vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS is
the only gasoline additive recommended by General
Motors.
Also, your dealer/retailer has additives that will help
correct and prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend that you use these gasolines,
if they comply with the specications described earlier.However, E85 (85% ethanol) and other fuels containing
more than 10% ethanol must not be used in vehicles that
were not designed for those fuels.
Notice:This vehicle was not designed for fuel
that contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under the vehicle
warranty.
Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of
the emission control system could be affected. The
malfunction indicator lamp might turn on. If this occurs,
return to your dealer/retailer for service.
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Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated
miles (kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)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 5-21.•• •
Change automatic transmission uid and
lter (severe service).See footnote (h).•• •
Change automatic transmission uid and
lter (normal service).•
Replace spark plugs and inspect spark plug
wires.An Emission Control Service.•
Engine cooling system service (or every
ve years, whichever occurs rst).An
Emission Control Service. See footnote (i).•
Inspect engine accessory drive belt.An
Emission Control Service. See footnote (n).•
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Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer/retailer.
Maintenance Replacement Parts
Part GM Part NumberAC Delco Part
Number
Engine Air Cleaner/Filter 10350737 A2962C
Engine Oil Filter
3.5L V6, 3.5L and 3.9L V6 Flexible Fuel Engines 89017342 PF61
5.3L V8 Engine 89017524 PF48
Passenger Compartment Air Filter 15284938 CF132
Spark Plugs
3.5L V6, 3.5L and 3.9L V6 Flexible Fuel Engines 12591131 41-100
5.3L V8 Engine 12609877 41-985
Wiper Blades
Driver - 21.7 in (55.0 cm) 15941731 —
Passenger - 21.7 in (55.0 cm) 15941732 —
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