2009 PONTIAC G8 fuel additives

Driving and
Operating
Starting and Operating
Your Vehicle
New Vehicle Break-In.........8-2
Ignition Positions................8-2
Retained Accessory
Power (RAP).....................8-3
Starting the Engine.............8-4
Engine Coolant Heater.......8-5
Automatic Transmission
Operation..........................8-6
Manual Transmission
Operation........................8-10
Parking Brake...................8-11
Shifting Into Park
(Automatic
Transmission)
..................8-12
Shifting Out of Park..........8-13
Parking the Vehicle
(Manual Transmission). . . .8-14
Parking Over Things
That Burn........................8-14
Engine Exhaust.................8-14
Running the Vehicle
While Parked..................8-15
Driving Your Vehicle
Defensive Driving..............8-16
Drunk Driving....................8-16
Control of a Vehicle..........8-17
Braking.............................8-17
Antilock Brake
System (ABS).................8-18
Electronic Stability
Program..........................8-19
Steering............................8-22
Off-Road Recovery............8-23
Passing.............................8-23
Loss of Control.................8-23
Driving at Night.................8-24
Driving in Rain and
on Wet Roads.................8-25
Before Leaving on
a Long Trip.....................8-26
Highway Hypnosis.............8-26
Hill and Mountain Roads. . . .8-26
Winter Driving...................8-27
If Your Vehicle is Stuck
in Sand, Mud, Ice,
or Snow
..........................8-29
Rocking Your Vehicle
to Get It Out...................8-30
Loading the Vehicle..........8-30
Fuel
Fuel..................................8-34
Gasoline Octane...............8-35
Gasoline Specications.....8-35
California Fuel..................8-35
Additives...........................8-36
Fuels in Foreign
Countries........................8-36
Filling the Tank.................8-37
Filling a Portable
Fuel Container................8-38
Driving and Operating 8-1

Gasoline Octane
If the vehicle has a V8 engine, use
regular unleaded gasoline with a
posted octane rating of 87 or higher.
If the octane rating is less than 87,
you might notice an audible knocking
noise when you drive, commonly
referred to as spark knock. If this
occurs, use a gasoline rated at 87
octane or higher as soon as possible.
If you are using gasoline rated at 87
octane or higher and you hear heavy
knocking, the engine needs service.
If the vehicle has the 3.6L V6 engine
(VIN Code 7), use regular unleaded
gasoline with a posted octane rating
of 87 or higher. For best performance
or trailer towing, you could choose
to use middle grade 89 octane
unleaded gasoline. If the octane
rating is less than 87, you might
notice an audible knocking noise
when you drive, commonly referredto as spark knock. If this occurs,
use a gasoline rated at 87 octane
or higher as soon as possible. If you
are using gasoline rated at
87 octane or higher and you hear
heavy knocking, the engine needs
service.
Gasoline Specications
At a minimum, gasoline should
meet ASTM specication D 4814
in the United States or
CAN/CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. SeeAdditives on
page 8-36for additional information.
California Fuel
If the vehicle is certied to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specications. See
the underhood emission control
label. If this fuel is not available in
states adopting California emissions
standards, the vehicle will operate
satisfactorily on fuels meeting federal
specications, but emission control
system performance might be
affected. The malfunction indicator
lamp could turn on and the vehicle
might fail a smog-check test. See
Malfunction Indicator Lamp on
page 4-18. If this occurs, return to
your authorized dealer/retailer for
diagnosis. If it is determined that the
condition is caused by the type of
fuel used, repairs might not be
covered by the vehicle warranty.
Driving and Operating 8-35

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
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.
Fuels in Foreign
Countries
If you plan on driving in another
country outside the United States or
Canada, the proper fuel might 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 the vehicle 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.
8-36 Driving and Operating

A
Accessories and
Modications...................... 9-3
Accessory Power Outlets........ 4-9
Adding Equipment to Your
Airbag-Equipped Vehicle....1-32
Additives, Fuel.....................8-36
Add-On Electrical
Equipment.......................9-36
Air Cleaner/Filter, Engine.......9-11
Air Conditioning...............7-1, 7-4
Airbag
Passenger Status
Indicator.......................4-14
Readiness Light................4-13
System, Replacing Parts
After a Crash................1-33
Airbag System.....................1-20
Adding Equipment to Your
Airbag-Equipped
Vehicle........................1-32
Check.............................1-33
How Does an Airbag
Restrain?.....................1-25Airbag System (cont.)
Passenger Sensing
System........................1-27
Servicing Your
Airbag-Equipped
Vehicle........................1-31
What Makes an Airbag
Inate?........................1-25
What Will You See After
an Airbag Inates?........1-25
When Should an Airbag
Inate?........................1-23
Where Are the Airbags?.....1-22
Antenna, Fixed Mast............6-37
Antenna, XM™ Satellite
Radio Antenna System......6-37
Antilock Brake
System (ABS)..................8-18
Antilock Brake, System
Warning Light...................4-16
Appearance Care
Chemical Paint
Spotting.....................9-102
Exterior Cleaning..............9-98Appearance Care (cont.)
Finish Damage...............9-102
Interior Cleaning...............9-95
Sheet Metal Damage.......9-102
Underbody Maintenance . . . 9-102
Appointments, Scheduling
Service...........................12-8
Audio System........................ 6-1
Audio Steering Wheel
Controls.......................6-36
Fixed Mast Antenna..........6-37
Radio Reception...............6-36
Setting the Clock................ 6-2
Theft-Deterrent Feature......6-35
XM™ Satellite Radio
Antenna System............6-37
Audio System(s).................... 6-3
Automatic Climate Control
System............................. 7-4
Automatic Headlamp
System............................. 5-2
Automatic Transmission
Operation.......................... 8-6
INDEX i-1

Electrical System (cont.)
Power Windows and
Other Power Options.....9-36
Rear Compartment
Fuse Block...................9-41
Windshield Wiper Fuses....9-36
Electronic Stability Program....8-19
Engine
Air Cleaner/Filter...............9-11
Check and Service Engine
Soon Lamp..................4-18
Coolant...........................9-15
Coolant Heater................... 8-5
Coolant
Temperature Gage.........4-17
Drive Belt Routing...........11-14
Engine Compartment
Overview....................... 9-6
Exhaust...........................8-14
Oil ................................... 9-8
Oil Life System.................9-10
Overheating.....................9-20
Starting............................. 8-4
Event Data Recorders.........12-16
Extender, Safety Belt............1-18
Exterior Lamps...................... 5-1F
Filter
Engine Air Cleaner............9-11
Finish Damage...................9-102
Fixed Mast Antenna.............6-37
Flashers, Hazard Warning....... 4-4
Flat Tire..............................9-66
Flat Tire, Changing...............9-75
Flat Tire, Storing..................9-82
Fluid
Power Steering.................9-21
Windshield Washer...........9-23
Fog Lamp
Fog .................................. 5-3
Fog Lamp Light...................4-20
Fuel...................................8-34
Additives.........................8-36
California Fuel..................8-35
Filling a Portable Fuel
Container.....................8-38
Filling the Tank.................8-37
Fuels in Foreign
Countries.....................8-36
Gage ..............................4-21
Gasoline Octane...............8-35
Gasoline Specications......8-35Fuses
Engine Compartment
Fuse Block...................9-38
Instrument Panel Fuse
Block...........................9-36
Rear Compartment Fuse
Block...........................9-41
Windshield Wiper..............9-36
G
Gage
Engine Coolant
Temperature.................4-17
Fuel................................4-21
Oil Pressure.....................4-21
Speedometer...................4-12
Tachometer......................4-12
Voltmeter Gage................4-15
Gasoline
Octane............................8-35
Specications...................8-35
Glove Box............................ 3-1
GM Mobility Reimbursement
Program..........................12-5
i-4 INDEX