2006 CADILLAC CTS spark plugs

To help keep fuel injectors and intake valves clean,
or if your vehicle experiences problems due to
dirty injectors or valves, look for gasoline that is
advertised as TOP TIER Detergent Gasoline. Also,
your GM dealer has additives that will help correct and
prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area. General Motors recommends 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: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
recommends against 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 (cont’d)
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)
CTS-V Only: Change hydraulic
clutch uid (severe service only).
See footnote (l).• •••••
CTS-V Only: Change rear axle
uid (severe service only).
See footnotes (l) and (m).•••
CTS-V Only: Change brake uid
(severe service only).See footnote (l).• •••••
Replace spark plugs.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 (p).•
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Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number or specication can be obtained from your dealer.
Part GM Part NumbersACDelco®
Part Numbers
Engine Air Cleaner/Filter 25728874 A2029C
Engine Oil Filter
2.8L V6 and 3.6L V6 25177917 PF2129
6.0L V8 88984215 PF46
Passenger Compartment Air Filter Element 25740404 CF133
Spark Plugs
2.8 L HFV6 12565996 41-988
3.6 L HFV6 12597464 41-990
6.0 L V8 12571164 41-985
Wiper Blades (Hook Type)
Driver’s Side – 22 inches (56.5 cm) 12487636 —
Passenger’s Side – 21 inches (53.3 cm) 12487638 —
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