oil viscosity OLDSMOBILE SILHOUETTE 2003 Owners Manual

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.
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
HOT
WEATHER
~~
COLD
WEATHER
DO NOT USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER VISCOSITY GRADE OIL NOT RECOMMENDED
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As in the chart shown previously, 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 SAE 5W-30. If you cannot find such SAE 5W-30 oils,
you can use an SAE
1OW-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 1OW-40 or SAE 20W-50 under any conditions.
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 pe;formance and engifie prs:ection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is based
on engine revolutions and engine temperature, and
not on mileage. Based on driving conditions, the mileage
at which an oil change will be indicated can vary
considerably. For the oil life system to work properly,
you must reset the system every time the oil
is changed.
When the system has calculated that oil life has
been diminished,
it will indicate that an oil change is
necessary. A change engine oil message will come on.
Change your oil as soon as possible within the next
two times you stop for fuel. It is possible that,
if you are
driving under the best conditions, the oil life system
may not indicate that an oil change is necessary for
over a year. However, your engine oil and filter must
be changed at least once a year and at this time
the system must be reset. It is also important to check
. .- . ..- -:I .I - ..I. . - - -1 I-- - - :r -I rl- - .- .- - ._ I -. ,-I yuul UII I cyular IY a1 IU ncep 11 a1 11 le IJI upcl eve^.
If the system is ever reset accidentally, you must change
your oil at 3,000 miles
(5 000 km) since your last oil
change. Remember to reset the oil life system
whenever the oil is changed.
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Part D: Recommended Fluids
and Lubricants
Fluids and lubricants identified below by name, part
number or specification may be obtained from your
dealer.
Usage Engine oil with the American
Engine Oil Fluid/Lubricant
Petroleum Institute Certified for
Gasoline Engines starburst
symbol
of the proper viscosity.
To determine the preferred
viscosity for your vehicle’s engine, see
Engine Oil on
page
5- 14.
Engine Coolant 50/50 mixture of clean, drinkable
water and use only DEX-COOL
Coolant. See
Engine Coolant on
page
5-23.
Usage Fluid/Lubricant
Hydraulic Brake Delco Supreme
11 Brake Fluid
System or equivalent DOT-3 brake fluid.
Windshield GM Optikleen Washer Solvent
Washer Solvent or equivalent.
Power Steering GM Power Steering Fluid
System (GM Part
No. US. 1052884,
Automatic DEXRON-Ill Automatic
Transaxle Transmission Fluid.
Key Lock Multi-Purpose Lubricant,
Cylinders Superlube (GM Part No.
U.S.
in Canada 993294, or equivalent).
12346241, in Canada 10953474,
or equivalent).
Chassis Chassis Lubricant
Lubrication (GM Part
No. U.S. 12377985, in
Canada 88901 242, or equivalent)
or lubricant meeting requirements
of NLGl#2, Category LB or
GC-LB.
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