2008 PONTIAC G8 coolant

(e)Make sure the safety belt
reminder light and safety belt
assemblies are working properly.
Look for any other loose or
damaged safety belt system parts. If
you see anything that might keep
a safety belt system from doing
its job, have it repaired. Have any
torn or frayed safety belts replaced.
Also see Airbag System Check
on page 1-31.
(f)Lubricate all key lock cylinders,
door hinges and latches, hood
hinges and latches and trunk lid
hinges and latches. More frequent
lubrication may be required
when exposed to a corrosive
environment. Applying silicone
grease on weatherstrips with a clean
cloth will make them last longer,
seal better, and not stick or squeak.
(g)Visually inspect belt for fraying,
excessive cracks, or obvious
damage. Replace belt if necessary.(h)Change automatic transmission
fluid and filter if the vehicle is
mainly driven under one or more of
these conditions:
In heavy city traffic where the
outside temperature regularly
reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer
towing.
Uses such as found in taxi,
police, or delivery service.
(i)Drain, flush, and refill cooling
system. This service can be
complex; you should have your
dealer/retailer perform this service.
See Engine Coolant on page 9-13 for
what to use. Inspect hoses. Clean
radiator, condenser, pressure cap,
and filler neck. Pressure test the
cooling system and pressure cap.(j)A fluid loss in any vehicle system
could indicate a problem. Have
the system inspected and repaired
and the fluid level checked. Add
fluid if needed.
(k)If you drive regularly under dusty
conditions, inspect the filter at
each engine oil change.
(l)If you drive regularly under dusty
conditions, the filter may require
replacement more often.
(m)Drain, flush, and refill brake
hydraulic system at a regular service
interval (IorII) every two years.
This service can be complex;
you should have your dealer/retailer
perform this service. See Brakes
on page 9-24.
11-8 Service and Maintenance
2008 - Pontiac G8 Owner Manual

Owner Checks and
Services
These owner checks and services
should be performed at the intervals
specied to help ensure vehicle
safety, dependability, and emission
control performance. Your
dealer/retailer can assist with these
checks and services.
Be sure any necessary repairs are
completed at once. Whenever
any uids or lubricants are added to
the vehicle, make sure they are
the proper ones, as shown in
Recommended Fluids and
Lubricants on page 11-12.
At Each Fuel Fill
It is important to perform these
underhood checks at each fuel fill.
Engine Oil Level Check
Notice:It is important to check
the engine oil regularly and
keep it at the proper level. Failure
to keep the engine oil at the
proper level can cause damage to
the engine not covered by the
vehicle warranty.
Check the engine oil level and add
the proper oil if necessary. See
Engine Oil on page 9-8.
Engine Coolant Level Check
Check the engine coolant level
and add DEX-COOL®coolant
mixture if necessary. SeeEngine
Coolant on page 9-13.
Windshield Washer Fluid
Level Check
Check the windshield washer uid
level in the windshield washer
uid reservoir and add the proper
uid if necessary.
At Least Once a Month
Tire Ination Check
Inspect the vehicle’s tires and make
sure they are inated to the correct
pressures. Do not forget to check the
spare tire. SeeInflation - Tire
Pressure on page 9-46. Check to
make sure the spare tire is stored
securely. SeeChanging a Flat Tire
(V6 Engine) on page 9-71.
Tire Wear Inspection
Tire rotation may be required for
high mileage highway drivers prior to
the Engine Oil Life System service
notication. Check the tires for
wear and, if necessary, rotate the
tires. SeeTire Inspection and
Rotation on page 9-54.
Service and Maintenance 11-9
2008 - Pontiac G8 Owner Manual

Recommended Fluids and Lubricants
Fluids and lubricants identied below by name, part number, or specication can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine Oil Engine oil which meets GM Standard GM6094M and displays the
American Petroleum Institute Certied for Gasoline Engines starburst
symbol. To determine the proper viscosity for your vehicle’s engine,
see
Engine Oil on page 9-8 .
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®
Coolant. See
Engine Coolant on page 9-13 .
Hydraulic Brake System Hydraulic Brake Fluid. Use only GM Part No. U.S. 88958860,
in Canada 88901244, Super DOT-4 brake uid.
Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Power Steering System DEXRON®-VI Automatic Transmission Fluid.
Automatic Transmission DEXRON®-VI Automatic Transmission Fluid.
Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in
Canada 10953474).
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in
Canada 992723) or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in
Canada 109435474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518)
or Dielectric Silicone Grease (GM Part No. U.S. 12345579, in
Canada 992887).
11-12 Service and Maintenance
2008 - Pontiac G8 Owner Manual

Bulb Replacement................9-29
Halogen Bulbs . . ................9-29
Headlamp Aiming ..............9-27
Headlamps and Parking
Lamps . ........................9-29
Replacement Bulbs...........9-32
Taillamps . ........................9-31
Buying New Tires . . ...............9-56
C
Calibration . . . . . . . . . . . ...............2-16
California Fuel . . . ..................8-33
California Perchlorate
Materials Requirements....... 9-3
California Proposition 65
Warning ............................ 9-3
Canadian Owners..................... ii
Capacities and
Specications . . . ................10-2
Carbon
Monoxide . . ......2-10, 8-12, 8-25
Care, Safety Belts................1-18
Cautions and Notices............... iii
CD, MP3 ............................6-19
Center Console
Storage Area..................... 3-1
Chains, Tire . . . . . ...................9-62
Charging System Light . . ........4-15Check
Engine Light....................4-18
Chemical Paint Spotting........9-98
Child Restraints
Child Restraint Systems.....1-37
Infants and Young
Children.......................1-34
Lower Anchors and Tethers
for Children..................1-40
Older Children..................1-32
Securing ..................1-46, 1-48
Where to Put the
Restraint......................1-38
Cleaning
Exterior...........................9-94
Interior............................9-91
Underbody Maintenance....9-98
Climate Control System.......... 7-1
Automatic.......................... 7-4
Outlet Adjustment............... 7-8
Clock, Setting . . ...................... 6-2
Collision Damage Repair . . . . . 12-10
Compact Spare Tire . ............9-79
Compass............................2-16
Compressor Kit, Tire
Sealant...........................9-64
Content Theft-Deterrent.........2-13
Control of a Vehicle . . ............8-14
Convenience Net................... 3-1Coolant
Engine . ...........................9-13
Engine Temperature Gage . . . 4-17
Cooling System . . . . ...............9-17
Cruise Control . . ..................... 4-5
Customer Assistance
Information
Courtesy
Transportation.......12-4, 12-9
Customer Assistance
Offices .........................12-4
Customer Satisfaction
Procedure....................12-1
GM Mobility
Reimbursement
Program . . . ....................12-5
Reporting Safety Defects to
General Motors...........12-14
Reporting Safety Defects to
the Canadian
Government ................12-14
Reporting Safety Defects to
the United States
Government ................12-14
Roadside Assistance
Program . . . ....................12-6
Service Publications
Ordering Information . . . . . 12-15
i-2 INDEX
2008 - Pontiac G8 Owner Manual

D
Daytime Running Lamps......... 5-2
Daytime Running Lamps
Indicator Light..................4-21
Defensive Driving . . ...............8-13
DIC Vehicle Customization . . . . 4-32
Disc, MP3 . . .........................6-19
Doing Your Own
Service Work..................... 9-4
Dome Lamps........................ 5-4
Door
Ajar Light . .......................4-21
Locks . . . . . . . ........................ 2-8
Power Door Locks.............. 2-9
Rear Door Security Locks . . . . 2-9
Driver Information
Center (DIC) . ...........4-23, 4-32
DIC Operation and
Displays .......................4-23
DIC Warnings and
Messages....................4-27
Driving
At Night ..........................8-22
Before a Long Trip............8-24
Defensive . .......................8-13
Drunken ..........................8-13
Highway Hypnosis............8-24
Hill and Mountain Roads . . . . 8-24Driving (cont.)
In Rain and on
Wet Roads...................8-23
Rocking Your Vehicle to
Get it Out ....................8-28
Winter .............................8-25
E
EDR .................................12-16
Electrical System
Add-On Equipment . ...........9-32
Engine Compartment Fuse
Block...........................9-35
Headlamp Wiring . . ............9-33
Instrument Panel Fuse
Block...........................9-33
Power Windows and Other
Power Options . . ............9-33
Rear Compartment
Fuse Block...................9-38
Windshield Wiper Fuses....9-33
Electronic Stability Program . . . 8-16
Engine
Air Cleaner/Filter . . .............9-11
Check and Service Engine
Soon Light...................4-18
Coolant...........................9-13
Coolant Heater................... 8-5Engine (cont.)
Coolant
Temperature Gage.........4-17
Drive Belt Routing...........11-14
Engine Compartment
Overview . . . . . .................. 9-6
Exhaust . ..........................8-12
Oil ................................... 9-8
Oil Life System.................9-10
Overheating.....................9-16
Starting ............................. 8-4
Event Data Recorders .........12-16
Extender, Safety Belt ............1-17
Exterior Lamps . ..................... 5-1
F
Filter
Engine Air Cleaner ............9-11
Finish Damage....................9-98
Fixed Mast Antenna . . . . .........6-24
Flashers, Hazard Warning . . . . . . . 4-4
Flat Tire . . . ...........................9-62
Flat Tire, Changing . . .............9-71
Flat Tire, Storing . . . . ..............9-78
Fluid
Automatic Transmission . . . . . 9-13
Power Steering.................9-21
Windshield Washer . ..........9-22
INDEX i-3
2008 - Pontiac G8 Owner Manual

Fog Lamp
Fog .................................. 5-3
Fog Lamp Light . . . ................4-21
Front Seats . .......................... 1-2
Fuel...................................8-32
Additives . ........................8-34
California Fuel . . ................8-33
Filling a Portable Fuel
Container . . . ..................8-36
Filling the Tank . . ...............8-35
Fuels in Foreign
Countries . . . ..................8-34
Gage ..............................4-22
Gasoline Octane . ..............8-33
Gasoline Specications......8-33
Fuses
Engine Compartment Fuse
Block ...........................9-35
Instrument Panel Fuse
Block ...........................9-33
Rear Compartment Fuse
Block ...........................9-38
Windshield Wiper ..............9-33G
Gage
Engine Coolant
Temperature.................4-17
Fuel . . . . . ...........................4-22
Oil Pressure.....................4-22
Speedometer...................4-12
Tachometer......................4-12
Voltmeter Gage................4-15
Gasoline
Octane............................8-33
Specications...................8-33
Glove Box............................ 3-1
GM Mobility Reimbursement
Program..........................12-5
H
Hazard Warning Flashers . ....... 4-4
Head Restraints . .................... 1-4
Headlamp
Aiming............................9-27
Headlamp System
Automatic.......................... 5-2
Headlamp Wiring.................9-33Headlamps
Bulb Replacement . ............9-29
Daytime Running Lamps . . . . . 5-2
Exterior Lamps ................... 5-1
Halogen Bulbs..................9-29
Headlamps and Parking
Lamps .........................9-29
High/Low Beam Changer . . . . . 4-7
Heater...........................7-1, 7-4
Engine Coolant . ................. 8-5
Highbeam On Light . . . . . . ........4-21
High-Speed Operation, Tires . . . 9-48
Highway Hypnosis . . . .............8-24
Hill and Mountain Roads . . . . . . . 8-24
Hood
Release............................ 9-5
Horn.................................... 4-4
How to Wear Safety Belts
Properly............................ 1-8
i-4 INDEX
2008 - Pontiac G8 Owner Manual