fuel additives GMC SIERRA 2004 Owner's Manual

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-18
Engine Air Cleaner/Filter................................5-23
Automatic Transmission Fluid (Except Allison
Transmission
ž) ..........................................5-25
Automatic Transmission Fluid (Allison
Transmission
ž) ..........................................5-28
Manual Transmission Fluid.............................5-31
Hydraulic Clutch...........................................5-32
Engine Coolant.............................................5-33
Coolant Surge Tank Pressure Cap..................5-36
Engine Overheating.......................................5-36Cooling System............................................5-39
Engine Fan Noise.........................................5-44
Power Steering Fluid.....................................5-45
Windshield Washer Fluid................................5-46
Brakes........................................................5-48
Battery........................................................5-52
Jump Starting...............................................5-53
Rear Axle.......................................................5-59
Four-Wheel Drive............................................5-60
Noise Control System.....................................5-62
Tampering with Noise Control System
Prohibited.................................................5-62
Bulb Replacement..........................................5-64
Halogen Bulbs..............................................5-64
Headlamps..................................................5-64
Front Turn Signal, Sidemarker and Daytime
Running Lamps.........................................5-66
Roof Marker Lamps......................................5-67
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp.............................................5-69
Pickup Box Identi®cation and Fender Marker
Lamps.....................................................5-70
Taillamps.....................................................5-71
Replacement Bulbs.......................................5-74
Section 5 Service and Appearance Care
5-1

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. 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. General
Motors recommends that you buy gasolines that
are advertised to help keep fuel injectors and intake
valves clean. If your vehicle experiences problems due
to dirty injectors or valves, try a different brand of
gasoline.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the speci®cations described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors does
not recommend the use of such gasolines. Fuels
containing MMT can reduce the life of spark plugs and
the performance of the emission control system may
be affected. The malfunction indicator lamp may turn on.
If this occurs, return to your authorized GM dealer for
service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may 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 your 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.
5-6

Notice:Use only engine oil identi®ed as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certi®ed For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench
žoil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below-20ÉF (-29ÉC), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all you will need for good performance
and engine protection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change will be indicated can vary
considerably. For the oil life system to work properly, you
must reset the system every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL message will
come on. Change your oil as soon as possible within
the next two times you stop for fuel. It is possible that, if
you are driving under the best conditions, the oil life
system may not indicate that an oil change is necessary
for over a year. However, your engine oil and ®lter
must be changed at least once a year and at this time
the system must be reset. Your dealer has GM-trained
service people who will perform this work using
genuine GM parts and reset the system. It is also
important to check your oil regularly and keep it at the
proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.
5-21

A
Accessory Power Outlets.................................3-20
Adding a Snow Plow or Similar Equipment.........4-64
Adding Washer Fluid.......................................5-46
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-125
Add-On Equipment..........................................4-63
Adjusting the Speakers
(Balance/Fade)..................3-76, 3-80, 3-91, 3-105
After Off-Road Driving.....................................4-37
Air Bag
Off Light.....................................................3-37
Passenger Status Indicator...........................3-40
Readiness Light..........................................3-36
Air Bag Systems.............................................1-70
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-86
Air Bag Off Switch.......................................1-76
How Does an Air Bag Restrain?....................1-75
Passenger Sensing System...........................1-81
Servicing Your Air Bag-Equipped Vehicle.........1-86
What Makes an Air Bag In¯ate?....................1-74
What Will You See After an Air Bag In¯ates?......1-75
When Should an Air Bag In¯ate?...................1-73
Where Are the Air Bags?..............................1-72
Air Cleaner/Filter, Engine.................................5-23
Air Conditioning..............................................3-30
Airbag Sensing and Diagnostic Module (SDM)....7-10All Overseas Locations...................................... 7-5
AM .............................................................3-129
AM-FM Radio.................................................3-74
Antenna, Fixed Mast......................................3-131
Antenna, XMŸ Satellite Radio Antenna
System.....................................................3-131
Anti-lock Brake System..................................... 4-7
Anti-Lock Brake, System Warning Light..............3-45
Appearance Care..........................................5-116
Care of Safety Belts...................................5-119
Chemical Paint Spotting..............................5-123
Cleaning the Inside of Your Vehicle..............5-117
Cleaning the Outside of Your Vehicle............5-120
Finish Damage..........................................5-122
Sheet Metal Damage..................................5-122
Underbody Maintenance.............................5-123
Vehicle Care/Appearance Materials...............5-123
Weatherstrips............................................5-119
Approaching a Hill..........................................4-27
Ashtrays........................................................3-21
Audio Output................................................3-123
Audio System(s).............................................3-73
AM-FM Radio.............................................3-74
Audio Steering Wheel Controls....................3-128
Care of Your Cassette Tape Player...............3-129
Care of Your CD and DVD Player................3-131
Care of Your CDs and DVDs.......................3-130
Chime Level Adjustment.............................3-131
Fixed Mast Antenna...................................3-131
Radio with Cassette and CD.........................3-88
1

Fluid (cont.)
Windshield Washer......................................5-46
FM Stereo....................................................3-129
Fog Lamps....................................................3-17
Folding the Rear Seat....................................... 1-9
Following Distance..........................................4-92
Four-Wheel Drive....................................2-35, 5-60
Four-Wheel-Drive Light....................................3-53
Front Axle......................................................5-61
Front Axle Locking Feature...............................2-35
Front Reading Lamps......................................3-19
Front Storage Area.........................................2-67
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-54
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-54
Fuel Information Button....................................3-58
FUEL LEVEL LOW.........................................3-68
Fuses
Fuses and Circuit Breakers.........................5-126
Windshield Wiper.......................................5-126G
Gage
Engine Coolant Temperature.........................3-46
Fuel..........................................................3-54
Oil Pressure...............................................3-52
Speedometer..............................................3-35
Tachometer.................................................3-35
Transmission Temperature.............................3-47
Voltmeter Gage...........................................3-42
Gasoline
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Getting Familiar with Off-Road Driving................4-24
Glove Box.....................................................2-66
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp High/Low-Beam Changer.................... 3-9
Headlamps....................................................5-64
Bulb Replacement.......................................5-64
7