Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, you should not have to add anything to the fuel.
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. 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 speci cations 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.
Fuel E85 (85% Ethanol)
The 8th digit of the Vehicle Identi cation Number (VIN)
shows the code letter or number that identi es the
vehicle’s engine. The VIN is at the top left of the
instrument panel. SeeVehicle Identification Number
(VIN) on page 5-108.
If the vehicle has the 3.5L V6 engine (VIN Code K),
you can use either unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85). SeeFuel on
page 5-6. In all other engines, use only the unleaded
gasoline described underGasoline Octane on page 5-7.
Only vehicles that have the 3.5L V6 engine (VIN Code K)
can use 85% ethanol fuel (E85). We encourage the use
of E85 in vehicles that are designed to use it. The ethanol
in E85 is a “renewable” fuel, meaning it is made from
renewable sources such as corn and other crops.
5-8
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)
3.6L (Code 7) V6 Engine Only: Change
automatic transmission uid (severe
service).See footnote (l).•••
3.6L (Code 7) V6 Engine Only: Change
automatic transmission uid (normal
service).•
Replace spark plugs. 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 (m).•
Maintenance Footnotes
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, etc. Inspect disc
brake pads for wear and rotors for surface condition.
Inspect other brake parts, including calipers, parking
brake, etc.(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing parts or
signs of wear. Inspect electric power steering cables
for proper hook-up, binding, cracks, chafing, etc. Inspect
hydraulic power steering lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, etc.
6-7
Maintenance Replacement Parts
Replacement parts identi ed below by name, part number, or speci cation can be obtained from your dealer/retailer.
Part GM Part Numbers ACDelco Part Numbers
Engine Air Cleaner/Filter
2.4L L4 and 3.6L V6 Engines 22676970 A1627C
3.5L V6 Engine — Except Retractable Hardtop 22676970 A1627C
3.5L V6 Engine — Retractable Hardtop 10366901 A2930C
3.9L V6 Engine 10366901 A2930C
Engine Oil Filter
2.4L L4 Engine 12605566 PF457G
3.5L V6, 3.9L V6 Engines 89017342 PF61
3.6L V6 Engine 89017524 PF48
Spark Plugs
2.4L L4 Engine 12598004 41-103
3.5L V6, 3.9L V6 Engines 12591131 41-100
3.6L V6 Engine 92220447 41-990
Wiper Blades
Driver Side — 24.0 in (60.0 cm) 25800624 —
Passenger Side — 21.2 in (53.0 cm) 25800623 —
6-14
