fuel additives HUMMER H3 2006 Owners Manual

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-16
Engine Air Cleaner/Filter................................5-18
Automatic Transmission Fluid.........................5-19
Manual Transmission Fluid.............................5-22
Hydraulic Clutch...........................................5-23
Engine Coolant.............................................5-24
Radiator Pressure Cap..................................5-27
Engine Overheating.......................................5-27Cooling System............................................5-29
Engine Fan Noise.........................................5-33
Power Steering Fluid.....................................5-34
Windshield Washer Fluid................................5-35
Brakes........................................................5-36
Battery........................................................5-39
Jump Starting...............................................5-40
All-Wheel Drive..............................................5-44
Rear Axle.......................................................5-45
Front Axle......................................................5-45
Headlamp Aiming...........................................5-46
Bulb Replacement..........................................5-49
Halogen Bulbs..............................................5-49
Headlamps..................................................5-49
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-50
Replacement Bulbs.......................................5-51
Windshield Wiper Blade Replacement..............5-52
Tires..............................................................5-53
Tire Sidewall Labelling...................................5-54
Tire Terminology and Denitions.....................5-57
Ination - Tire Pressure.................................5-60
Tire Pressure Monitor System.........................5-61
Tire Inspection and Rotation...........................5-64
When It Is Time for New Tires.......................5-65
Section 5 Service and Appearance Care
5-1

Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your vehicle
can affect the airow around it. This may cause
wind noise and affect windshield washer performance.
Check with your dealer before adding equipment to
the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part of the
proper maintenance of your vehicle.
Gasoline Octane
Use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than 87,
you may 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, your
engine needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM specication
D 4814 in the United States or CAN/CGSB-3.5 in
Canada. Some gasolines may contain an
octane-enhancing additive called methylcyclopentadienyl
manganese tricarbonyl (MMT). General Motors
recommends against the use of gasolines containing
MMT. SeeAdditives on page 5-6for additional
information.
5-5

California Fuel
If your 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,
your vehicle will operate satisfactorily on fuels meeting
federal specications, but emission control system
performance may be affected. The malfunction indicator
lamp may turn on and your vehicle may fail a
smog-check test. SeeMalfunction Indicator Lamp on
page 3-35. If this occurs, return to your authorized
GM dealer for diagnosis. If it is determined that
the condition is caused by the type of fuel used,
repairs may not be covered by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work
properly. In most cases, you should not have to add
anything to your 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 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.
5-6

A
Accessories and Modications............................ 5-3
Accessory Power Outlet(s)...............................3-19
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-64
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-95
Air Cleaner/Filter, Engine.................................5-18
Air Conditioning..............................................3-21
Airbag
Passenger Status Indicator...........................3-29
Readiness Light..........................................3-28
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-49
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-64
How Does an Airbag Restrain?......................1-57
Passenger Sensing System...........................1-59
Servicing Your Airbag-Equipped Vehicle..........1-64
What Makes an Airbag Inate?......................1-57
What Will You See After an Airbag Inates?....1-58
When Should an Airbag Inate?....................1-55
Where Are the Airbags?...............................1-52
All-Wheel Drive...............................................5-44All-Wheel Drive (AWD) System.........................2-22
Antenna, Fixed Mast.......................................3-77
Antenna, XM™ Satellite Radio
Antenna System..........................................3-77
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-33
Appearance Care............................................5-85
Aluminum Wheels........................................5-91
Care of Safety Belts....................................5-88
Chemical Paint Spotting...............................5-93
Cleaning Exterior Lamps/Lenses....................5-89
Cleaning the Inside of Your Vehicle................5-85
Fabric/Carpet..............................................5-87
Finish Care.................................................5-89
Finish Damage............................................5-92
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-88
Leather......................................................5-87
Sheet Metal Damage...................................5-92
Tires..........................................................5-91
Underbody Maintenance...............................5-92
Vehicle Care/Appearance Materials................5-93
Washing Your Vehicle...................................5-89
Weatherstrips..............................................5-88
Windshield, Backglass, and Wiper Blades.......5-90
1

Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-39
Check and Service Engine Soon Light............3-35
Coolant......................................................5-24
Coolant Heater............................................2-17
Coolant Temperature Gage...........................3-34
Engine Compartment Overview......................5-12
Exhaust.....................................................2-31
Fan Noise..................................................5-33
Oil .............................................................5-13
Oil Life System...........................................5-16
Overheating................................................5-27
Starting......................................................2-16
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-19
Extender, Safety Belt.......................................1-27
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-18
Finish Damage...............................................5-92
Fixed Mast Antenna........................................3-77Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-72
Flat Tire, Changing.........................................5-73
Flat Tire, Storing.............................................5-82
Fluid
Automatic Transmission................................5-19
Manual Transmission....................................5-22
Power Steering...........................................5-34
Windshield Washer......................................5-35
Fog Lamps....................................................3-18
Front Armrest Storage Area..............................2-43
Front Axle......................................................5-45
Front Seat Storage Net....................................2-42
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-40
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Fuses
Engine Compartment Fuse Block...................5-97
Fuses and Circuit Breakers...........................5-96
Windshield Wiper.........................................5-95
5