2005 CHEVROLET ASTRO CARGO VAN fuel additives

Service............................................................5-3
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...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling the 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...................................................5-13
Engine Cover...............................................5-17
Engine Air Cleaner/Filter................................5-21
Automatic Transmission Fluid.........................5-23
Engine Coolant.............................................5-25
Radiator Pressure Cap..................................5-28
Engine Overheating.......................................5-28
Cooling System............................................5-30
Engine Fan Noise.........................................5-34Power Steering Fluid.....................................5-35
Windshield Washer Fluid................................5-36
Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-41
All-Wheel Drive..............................................5-45
Rear Axle.......................................................5-46
Front Axle......................................................5-47
Bulb Replacement..........................................5-48
Halogen Bulbs..............................................5-48
Headlamps and Sidemarker Lamps.................5-48
Front Turn Signal and Parking Lamps..............5-52
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-52
Replacement Bulbs.......................................5-54
Windshield Wiper Blade Replacement..............5-54
Tires..............................................................5-55
Tire Sidewall Labelling...................................5-56
Tire Terminology and Denitions.....................5-59
Ination - Tire Pressure.................................5-61
Tire Inspection and Rotation...........................5-63
When It Is Time for New Tires.......................5-64
Buying New Tires.........................................5-65
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. 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.
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. 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 to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specications 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

A
Accessory Power Outlets.................................3-18
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-67
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-92
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-19
Airbag
Readiness Light..........................................3-27
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-60
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-67
How Does an Airbag Restrain?......................1-64
Servicing Your Airbag-Equipped Vehicle..........1-66
What Makes an Airbag Inate?......................1-64
What Will You See After an Airbag Inates?....1-65
When Should an Airbag Inate?....................1-63
Where Are the Airbags?...............................1-62
All-Wheel Drive...............................................5-45
All-Wheel Drive (AWD) System.........................2-23
All-Wheel-Drive Service Light............................3-35
AM-FM Radio.................................................3-41
Antenna, Fixed Mast.......................................3-51
Anti-Lock Brake System (ABS)........................... 4-6Anti-Lock Brake, System Warning Light..............3-30
Appearance Care............................................5-82
Aluminum Wheels........................................5-88
Care of Safety Belts....................................5-86
Chemical Paint Spotting...............................5-89
Cleaning Exterior Lamps/Lenses....................5-86
Cleaning the Inside of Your Vehicle................5-83
Fabric/Carpet..............................................5-84
Finish Care.................................................5-87
Finish Damage............................................5-89
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-85
Leather......................................................5-85
Sheet Metal Damage...................................5-89
Tires..........................................................5-88
Underbody Maintenance...............................5-89
Vehicle Care/Appearance Materials................5-90
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-86
Windshield and Wiper Blades........................5-87
Ashtrays........................................................3-18
Audio System(s).............................................3-40
AM-FM Radio.............................................3-41
Care of Your CD Player...............................3-51
Care of Your CDs........................................3-51
1

Engine (cont.)
Fuel Regulator............................................2-19
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-18
Entry Lighting.................................................3-17
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-33
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-89
Fixed Mast Antenna........................................3-51
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-69
Flat Tire, Changing.........................................5-70
Flat Tire, Storing.............................................5-80Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-35
Windshield Washer......................................5-36
Front Axle......................................................5-47
Fuel............................................................... 5-5
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.........................................................3-37
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-37
Regulator...................................................2-19
System Inspection.......................................6-28
Fuses
Fuses and Circuit Breakers...........................5-93
Instrument Panel Fuse Block.........................5-93
Underhood Fuse Block.................................5-96
Windshield Wiper.........................................5-92
5