AdditivesTo provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, nothing should have to be added to the 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 the vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS
is the only gasoline additive recommended by
General Motors.
Also, your dealer/retailer has additives that will help
correct and prevent most deposit-related problems.Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend that you use these gasolines,
if they comply with the specifications 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.
Notice:This vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under the
vehicle warranty.
Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance
of the emission control system could be affected.
The malfunction indicator lamp might turn on. If this
occurs, return to your dealer/retailer for service.
6-7
{
WARNING:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. This spray
can happen if the tank is nearly full, and is more
likely in hot weather. Open the fuel cap slowly and
wait for any hiss noise to stop. Then unscrew the
cap all the way.
Be careful not to spill fuel. Do not top off or overfill the
tank and wait a few seconds after you have finished
pumping before removing the nozzle. Clean fuel from
painted surfaces as soon as possible. SeeWashing
Your Vehicle on page 6-91.
When replacing the fuel cap, turn it clockwise until it
clicks. Make sure the cap is fully installed. The diagnostic
system can determine if the fuel cap has been left off or
improperly installed. This would allow fuel to evaporate
into the atmosphere. SeeMalfunction Indicator Lamp on
page 4-31.The TIGHTEN GAS CAP message displays on the
Driver Information Center (DIC) if the fuel cap is
not properly installed. SeeDIC Warnings and Messages
on page 4-44for more information.
{
WARNING:
If a fire starts while you are refueling, do not
remove the nozzle. Shut off the flow of fuel by
shutting off the pump or by notifying the station
attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer/retailer can get one
for you. If you get the wrong type, it may not fit
properly. This may cause the malfunction indicator
lamp to light and may damage the fuel tank and
emissions system. SeeMalfunction Indicator Lamp
on page 4-31.
6-11
Fuel (cont.)
Filling a Portable Fuel Container....................6-12
Filling the Tank...........................................6-10
Fuels in Foreign Countries.............................. 6-9
Gage . . . ......................................................4-36
Gasoline Octane........................................... 6-6
Gasoline Specifications.................................. 6-6
Fuel Economy
Driving for Better.........................................1-21
Fuses
Fuses and Circuit Breakers...........................6-96
Instrument Panel Fuse Block.........................6-96
Underhood Fuse Block.................................6-97
Windshield Wiper.........................................6-96
G
Gages
Engine Coolant Temperature.........................4-30
Fuel . . . . . . . . . .................................................4-36
Speedometer . . ............................................4-23
Tachometer . . . . . . ...........................................4-23
Garage Door Opener.......................................3-35
Gasoline
Octane........................................................ 6-6
Specifications ............................................... 6-6
Glove Box .....................................................3-42
GM Mobility Reimbursement Program.................. 8-7
H
Halogen Bulbs................................................6-43
Hazard Warning Flashers................................... 4-3
Head Restraints............................................... 2-2
Headlamp Wiring............................................6-96
Headlamps
Aiming.......................................................6-43
Bulb Replacement.......................................6-43
Daytime Running Lamps/Automatic
Headlamp System....................................4-10
Exterior Lamps............................................. 4-9
Flash-to-Pass............................................... 4-5
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................6-44
High/Low Beam Changer................................ 4-5
Heated Seats................................................... 2-6
Heater . ..........................................................4-16
Engine Coolant...........................................3-23
Highbeam On Light.........................................4-36
Highway Hypnosis...........................................5-15
Hill and Mountain Roads..................................5-16
Hood
Checking Things Under................................6-12
Release.....................................................6-13
Horn............................................................... 4-3
How to Wear Safety Belts Properly . . .................2-17
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