1998 PONTIAC GRAND PRIX Engine

When you open the hood of the 3100 engine, you'll see:
n
A. Windshield Washer Fluid
B. Battery
C. Radiator Fill Cap
D. Power Steering
Fluid Reservoir
E. Engine Oil Fill Cap
E Engine Oil Dipstick G.
Automatic Transaxle Dipstick
H. Brake Fluid Reservoir
I. Engine Coolant Reservoir
J. Air Cleaner
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When you open the hood of the 3800 engine, you’ll see:
A. Windshield Washer Fluid
D. Power Steering G. Automatic Transaxle Dipstick
B. Battery Fluid Reservoir
H. Brake Fluid Reservoir
C.
Radiator Fill Cap E. Engine Oil Dipstick I. Engine Coolant Reservoir
E Engine Oil Fill
Cap J. Air Cleaner
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When you open the hood of the 3800 Supercharged engine, you'll see:
D. Power Steering
Fluid Reservoir
E. Engine Oil Dipstick
F. Engine Oil Fill Cap
G. Automatic Transaxle Dipstick
H. Brake Fluid Reservoir
I. Engine Coolant Reservoir
J. Air Cleaner
A. Windshield Washer Fluid
B. Battery
C. Radiator Fill Cap
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Before closing the hood, be sure all the filler caps are
on properly. Then just pull the hood down and close
it fiiy.
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
LOW OIL
LEVEL
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 “Low
Oil Level Light” 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.
The engine oil dipstick
handle is the yellow loop
near the front of the engine.
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I
1
I
3 Checking Engine Oil
3800 or 3800 Supercharged Engine
Turn off the engine and give the oil a few minutes to
drain back into the oil pan.
If you don’t, the oil dipstick
might
not show the actual level. 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
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I NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
cross-hatched area that
shows the proper
operating range, your engine
could be damaged.
3800 Engine
When to Add Engine Oil
If the oil is at or below the upper mark, then you’ll need
to add at least one quart
of oil. But you must use the
right kind. This part explains what kind of oil to use. For
crankcase capacity, see “Capacities and Specifications”
in the Index. 3100 Engine
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3800 or 3800 Supercharged Engine
Be sure to fill it enough to put the level somewhere in
the proper operating range. Push the dipstick all the way
back in when you're through.
What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the "Starburst" symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute (API).
Do not use any oil which
does not carry this Starburst symbol.
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.f
If you change your own
oil, be sure you use oil
that has the Starburst
symbol
on the front of the
oil container. If
you have
your oil changed for you,
be sure the oil put into
your engine
is American
Petroleum Institute certifiel
for gasoline engines.
You should also use the proper viscosity oil for your
vehicle, as shown in the following chart:
d
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As shown in the chart, if you have the 3100 engine,
SAE 5W-30 is best for your vehicle. However, you
can use
SAE 1OW-30 if it’s going to be 0°F (-18°C) or
above. These numbers on an
oil container show its
viscosity, or thickness.
Do not use other viscosity oils,
such as SAE 20W-50.
I RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
I SAE VlSCOSlTT GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER SYMBOL ---
I
SAE 3w-30 PREFERRED
COLD
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
3100 Engine
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