2008 PONTIAC G8 oil pressure

Tire Terminology and
Denitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This means
the combined weight of optional
accessories. Some examples of
optional accessories are,
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire’s height to its width.
Belt
:A rubber coated layer of
cords that is located between the
plies and the tread. Cords
may be made from steel or other
reinforcing materials.Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in pounds per square
inch (psi) or kilopascals (kPa)
before a tire has built up heat
from driving. SeeInflation - Tire
Pressure on page 9-46.
Curb Weight
:The weight of a
motor vehicle with standard
and optional equipment including
the maximum capacity of fuel,
oil, and coolant, but without
passengers and cargo.DOT Markings
:A code
molded into the sidewall of a
tire signifying that the tire
is in compliance with the
U.S. Department of
Transportation (DOT) motor
vehicle safety standards.
The DOT code includes the Tire
Identication Number (TIN),
an alphanumeric designator
which can also identify the tire
manufacturer, production
plant, brand, and date of
production.
GVWR
:Gross Vehicle Weight
Rating. SeeLoading the Vehicle
on page 8-28.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Loading the Vehicle on
page 8-28.
Vehicle Service and Care 9-43
2008 - Pontiac G8 Owner Manual

When cleaning your vehicle’s
interior, only use cleaners
specically designed for the
surfaces being cleaned. Permanent
damage may result from using
cleaners on surfaces for which they
were not intended. Use glass
cleaner only on glass. Remove any
accidental over-spray from other
surfaces immediately. To prevent
over-spray, apply cleaner directly to
the cleaning cloth.
Notice:If you use abrasive
cleaners when cleaning glass
surfaces on your vehicle,
you could scratch the glass
and/or cause damage to the rear
window defogger. When
cleaning the glass on your
vehicle, use only a soft cloth and
glass cleaner.Many cleaners contain solvents that
may become concentrated in
your vehicle’s breathing space.
Before using cleaners, read
and adhere to all safety instructions
on the label. While cleaning your
vehicle’s interior, maintain adequate
ventilation by opening your
vehicle’s doors and windows.
Dust may be removed from small
buttons and knobs using a small
brush with soft bristles.
Your dealer/retailer has a product
for cleaning your vehicle’s glass.
You can also obtain a product from
your dealer/retailer to remove
odors from your vehicle’s upholstery.
Do not clean your vehicle using
the following cleaners or techniques:
Never use a knife or any other
sharp object to remove a soil
from any interior surface.
Never use a stiff brush. It can
cause damage to your vehicle’s
interior surfaces.
Never apply heavy pressure or
rub aggressively with a cleaning
cloth. Use of heavy pressure
can damage the interior and does
not improve the effectiveness
of soil removal.
Use only mild, neutral-pH soaps.
Avoid laundry detergents or
dishwashing soaps with
degreasers. Using too much soap
will leave a residue that leaves
streaks and attracts dirt. For liquid
cleaners, about 20 drops per
gallon (3.78 L) of water is a
good guide.
Do not heavily saturate the
upholstery while cleaning.
Damage to your vehicle’s interior
may result from the use of many
organic solvents such as naptha,
alcohol, etc.
9-92 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual

Scheduled Maintenance
Service MaintenanceIMaintenance II
Change engine oil and lter. See Engine Oil on page 9-8. Reset oil life
system. See Engine Oil Life System on page 9-10 .An Emission Control
Service. ••
Visually check for any leaks or damage. See footnote (j). ••
Inspect engine air cleaner lter. If necessary, replace lter. See Engine Air
Cleaner/Filter on page 9-11 .See footnote (k). •
Rotate tires and check ination pressures and wear. See Tire Inspection and
Rotation on page 9-54 and “Tire Wear Inspection” in At Least Once a Month
on page 11-9 . ••
Inspect brake system. See footnote (a). ••
Check engine coolant and windshield washer uid levels and add uid as
needed. ••
Perform any needed additional services. See “Additional Required Services”
in this section. ••
Inspect suspension and steering components. See footnote (b). •
Inspect engine cooling system. See footnote (c). •
Inspect wiper blades. See footnote (d). •
Inspect restraint system components. See footnote (e). •
Lubricate body components. See footnote (f). •
Replace passenger compartment air lter. See footnote (l). •
Service and Maintenance 11-5
2008 - Pontiac G8 Owner Manual

(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

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

Maintenance Schedule (cont.)
Scheduled Maintenance.....11-4
Using ..............................11-2
Your Vehicle and the
Environment . . ...............11-2
Malfunction Indicator Light.....4-18
Manual
Shift Lock Release............9-84
Manual Seats . . . . . ................... 1-2
Manual, Using . . . ....................... ii
Message
DIC Warnings and
Messages....................4-27
Mirrors
Manual Rearview Mirror.....2-16
Outside Convex Mirror.......2-18
Outside Power Mirrors.......2-17
MP3 ...................................6-19
MyGMLink.com....................12-3
N
Navigation System, Privacy . . . 12-17
New Vehicle Break-In............. 8-2
Normal Maintenance
Replacement Parts..........11-13
Notices and Cautions............... iii
O
Off-Road Recovery...............8-20
Oil
Engine.............................. 9-8
Pressure Gage.................4-22
Oil, Engine Oil Life System....9-10
Older Children, Restraints......1-32
Online Owner Center............12-3
OnStar, Privacy . .................12-17
OnStar
®System, see
OnStar®Manual...............4-36
Outlet Adjustment.................. 7-8
Outlets
Accessory Power................ 4-9
Outside
Convex Mirror..................2-18
Power Mirrors..................2-17
Owner Checks and
Services..........................11-9
Owner Checks, Service.......... 9-5
Owners, Canadian.................... ii
P
Paint, Damage.....................9-98
Park
Shifting Into.....................8-10
Shifting Out of..................8-11
Park Brake........................... 8-9
Parking
Over Things That Burn......8-11
Passenger Airbag Status
Indicator . .........................4-14
Passing . . ............................8-21
Perchlorate Materials
Requirements, California . . . . . . 9-3
Perimeter Lighting . ................. 5-4
Power
Door Locks . . . . . . . . . . .............. 2-9
Electrical System . . . . . . ........9-33
Retained Accessory (RAP) . . . 8-3
Seat................................. 1-2
Steering Fluid . . . . ...............9-21
Windows .........................2-15
Privacy.............................12-16
Event Data Recorders . . . . . 12-16
Navigation System . . . . . .....12-17
OnStar..........................12-17
Radio Frequency
Identication ................12-17
i-6 INDEX
2008 - Pontiac G8 Owner Manual