PONTIAC GRAND PRIX 1999 Owners Manual

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6-5
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent deposits from forming in your engine and fuel
system, allowing your emission control system to
function properly. Therefore, you should not have to add
anything to the fuel. In addition, 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 specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don't use it. It can corrode
metal parts in your fuel system and also damage
plastic and rubber parts. That damage wouldn't
be covered under your warranty.
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
find. Never use leaded gasoline or any other fuel not
recommended in the previous text on fuel. Costly repairs
caused by use of improper fuel wouldn't be covered by
your warranty.
To check on fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you'll be driving.
You can also write us at the following address for
advice. Just tell us where you're going and give your
Vehicle Identification Number (VIN).
General Motors Overseas Distribution Corporation
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7

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6-6
Filling Your Tank
CAUTION:
Gasoline vapor is highly flammable. It burns
violently, and that can cause very bad injuries.
Don't smoke if you're near gasoline or refueling
your vehicle. Keep sparks, flames and smoking
materials away from gasoline.
The cap is behind the fuel door on the driver's side of
your vehicle.
While refueling, hang the cap by the tether from the pin
on the fuel door.
To remove the cap, turn it slowly to the left
(counterclockwise). The cap has a spring in it; if you let
go of the cap too soon, it will spring back to the right.

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6-7
CAUTION:
If you get gasoline on yourself and then
something ignites it, you could be badly burned.
Gasoline can spray out on you if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any ªhissº noise to stop. Then unscrew
the cap all the way.
Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See ªCleaning the
Outside of Your Vehicleº in the Index.
When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. 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. See ªMalfunction Indicator Lampº in
the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See ªMalfunction Indicator Lampº in
the Index.

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6-8
Filling a Portable Fuel Container
CAUTION:
Never fill a portable fuel container while it is in
your vehicle. Static electricity discharge from the
container can ignite the gasoline vapor. You can
be badly burned and your vehicle damaged if this
occurs. To help avoid injury to you and others:

Dispense gasoline only into
approved containers.

Do not fill a container while it is inside a
vehicle, in a vehicle's trunk, pickup bed or
on any surface other than the ground.

Bring the fill nozzle in contact with the
inside of the fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.

Don't smoke while pumping gasoline.
Checking Things Under the Hood
CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
CAUTION:
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto a hot engine.

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6-9 Hood Release
To open the hood, first pull
the handle inside the
vehicle. It is located at the
lower, left
-hand side of
the vehicle, near the
parking brake.
Next go to the front of the vehicle and release the
secondary hood release. Lift the hood.

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6-10
When you open the hood of the 3100 engine, you'll see:
A. Windshield Washer Fluid
B. Battery
C. Radiator Fill Cap
D. Engine Coolant ReservoirE. Power Steering Fluid Reservoir
F. Engine Oil Fill Cap
G. Engine Oil DipstickH. Automatic Transaxle Dipstick
I. Brake Fluid Reservoir
J. Engine Air Cleaner/Filter

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6-11
When you open the hood of the 3800 engine, you'll see:
A. Windshield Washer Fluid
B. Battery
C. Radiator Fill Cap
D. Engine Coolant ReservoirE. Power Steering Fluid Reservoir
(low in engine compartment)
F. Engine Oil Fill Cap
G. Engine Oil DipstickH. Automatic Transaxle Dipstick
I. Brake Fluid Reservoir
J. Engine Air Cleaner/Filter

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6-12
When you open the hood of the 3800 Supercharged engine, you'll see:
A. Windshield Washer Fluid
B. Battery
C. Radiator Fill Cap
D. Engine Coolant ReservoirE. Power Steering Fluid Reservoir
(low in engine compartment)
F. Engine Oil Fill Cap
G. Engine Oil DipstickH. Automatic Transaxle Dipstick
I. Brake Fluid Reservoir
J. Engine Air Cleaner/Filter

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6-13
Before closing the hood, be sure all the filler caps are on
properly. Then just pull the hood down and close it firmly.
3800 Supercharged Engine
(If Equipped)
Your vehicle may have a 3800 Supercharged engine.
The supercharger is a device which is designed to pump
more air into the engine than it would normally use.
This air, mixed with fuel, creates increased engine
power. Since the supercharger is a pump and is driven
from an engine accessory drive belt, increased pressure
is available at all driving conditions.
The Powertrain Control Module (PCM) works with a
vacuum control to regulate the increased pressure
required during specific driving conditions. When this
increased pressure or boost is not desired, such as during
idling and light throttle cruising, the excess air that the
supercharger is pumping is routed through a bypass. All
of these controls working together provide high
performance character and fuel efficiency in the 3800
Supercharged engine.
Engine Oil
If the LOW OIL LEVEL
light on the instrument
panel comes on, it means
you need to check your
engine oil level right away.
For more information, see ªLow Oil Level Lightº in the
Index. You should check your engine oil level regularly;
this is an added reminder.
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.

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6-14
The engine oil dipstick handle is the yellow loop near
the front of the engine.
3100 Engine 3800 or 3800
Supercharged Engine
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil dipstick
might not show the actual level.
Checking Engine Oil
Pull out the dipstick and
clean it with a paper towel
or cloth, then push it back in
all the way. Remove it
again, keeping the tip down,
and check the level.
3100 Engine