2003 PONTIAC GRAND PRIX oil viscosity

I-
3100 . - Engine
A
A
*
SAE 1OW-30
m
I
3800 V6 or 3800 V6
Supercharged Engine
The engine oil fill cap will have one of these symbols on
it, depending on the engine. It is located on the front
of the engine, near the center of the engine
compartment and the yellow-looped engine oil dipstick.
See Engine Compartment Overview on page
5-12
for more information on location.
Be sure to
fill it enough to put the level somewhere
in the proper operating range in the cross-hatched area.
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.
If you choose to perform
the engine oil change
service yourself, be sure
the oil you use 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 certified
for gasoline engines.
You should also use the proper viscosity oil for your
vehicle, as shown in the viscosity chart.
5-20

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
HOT
WEATHER
COLD
SAE S’W.
LOOK
FOR THIS
SYMBOL
.
1-11 SAE IOW-30 ACCEPTABLE r IF 5W-30 IS NOT -30 AVAILABLE
RECOMMENDED
WEATHER
DO NOT USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER VlSCOSlN GRADE OIL NOT RECOMMENDED
As in the chart shown previously, if you have the
3100 V6 engine, SAE 5W-30 is the only viscosity grade
recommended for your vehicle. You should look for
and use only oils which have the API Starburst symbol
and which are also identified as
SA€ 5W-30. If you
cannot find such SAE 5W-30 oils, you can use an
SAE IOW-30 oil which has the API Starburst symbol,
if it’s going to be 0°F (-18°C) or above. Do not use
other viscosity grade oils, such as SAE IOW-40
or SAE 20W-50 under any conditions.
As shown in the following chart,
if you have the
3800 V6 engine, SAE IOW-30 is the viscosity grade
recommended for your vehicle. However, you can use
SAE 5W-30 if it’s going to be colder than 60°F (16°C)
before your next
oil change. When it is very cold, colder
than 0°F
(-1 8°C) you should use an SAE 5W-30 oil.
These numbers on an oil container show its viscosity,
or thickness.
Do not use other viscosity grade oils,
such as SAE 1
OW-40 or SAE 20W-50 under any
conditions.
3100 V6 Engine
5-2 1

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SA€ VISCOSITY GRADE
OIL FOR THE EXPECTED TEMPERATURE RANGE.
~~~~ ~~~~~ ~~ -
HOT
WEATHER
SAE SW-30
LOOK
FOR THIS
SYMBOL
8- SAE I 1OW-30
PREFERRED above 0°F (-1 8°C)
Notice: Use only engine oil with the American
Petroleum Institute Certified For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below
-20°F (-29"C), it is
recommended that you use either an SAE
5W-30
synthetic oil or an SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. The recommended oils
with the starburst symbol are
all you will need for
good performance and engine protection.
3800 V6 or 3800 V6 Supercharged Engine
5-22