1998 OLDSMOBILE SILHOUETTE oil additives

As shown in the chart, SAE 5W-30 is best for your
vehicle. However, you can use
SAE IOW-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 2OW-50.
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 where the temperature falls below
-20°F (-29”C), consider using 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. Your retailer is ready to
advise if you think something should be added.
When to Change Engine Oil
If any one of these is true for you, use the short triplcity
maintenance schedule:
0
0
0
0
0
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
YOU frequently tow a trailer or use a carrier on top of
your vehicle.
The vehicle is used for delivery service, police, taxi
or other commercial application.
Driving under
these conditions causes engine oil to
break down sooner. If any one of these
is true for your
vehicle, then you need
to change your oil and filter
every
3,000 miles (5 000 km) or 3 months -- whichever
occurs first.
6-14
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What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t damage aluminum parts. If you use this mixture,
you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper coolant mixture will. Your vehicle’s coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
your engine could get too hot but you wouldn’t
get the overheat warning. Your engine could
catch fire and you or others could be burned.
Use
a 50/50 mixture of clean water and
DEX-COOL@ coolant.
J
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty. Too much water in the mixture can
freeze and crack the engine, radiator, heater core
and other parts.
If you have to add coolant more than four times a year,
have your retailer check your cooling system.
NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
6-22
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Driving (Continued)
On Curves
.................................. 4- 11
On Grades While Towing a Trailer ............... 4-39
On Hill and Mountain Roads
.................... 4-24
On Snow and Ice
............................. 4-26
Throughwater
............................... 4-20
WetRoads
.................................. 4-18
Winter
...................................... 4-26
With a Trailer
................................ 4-37
Dump and
Stow Feature ........................... 1-7
Electrical Equipment. Adding .................... 2-28
Electrical System
............................... 6-56
Electronic Level Control
......................... 4-32
Engine
....................................... 6-10
Coolant ..................................... 6-21
Coolant Heater
............................... 2-29
Coolant Level Check
.......................... 7-29
Coolant Temperature Gage
..................... 2-92
Cooling System
.............................. 6-64
Exhaust
..................................... 2-38
Identification
................................ 6-55
OilLevelCheck
.............................. 7-29
Overheated Protection Operating Mode
........... 5- 13
Overheating
................................. 5-13
Specifications
................................ 6-64
StartingYour
................................ 2-27
Temperature Warning Light
..................... 2-92
Additives
................................... 6-14
Checking
................................... 6-12
Running
While Parked
......................... 2-39
Engine Oil
............................... 2-96. 6-11 Used
....................................... 6-15
What Kind to Use
............................. 6-13
WhentoAdd
................................ 6-12
Equipment. Adding to the Outside
Of Your Vehicle ..... 6-3
When
to Change
.............................. 6-14
Exhaust. Engine ................................ 2-38
Exit Lighting
.................................. 2-62
Fabric Cleaning
............................... 6-48
Fan Knob. Climate Control System
.................. 3-2
Filling a Portable Fuel Container
.................... 6-7
Filling Your Tank
................................ 6-5
Filter. Air
..................................... 6-15
Filter. Passenger Compartment Air
................. 6-16
Finishcare
.................................... 6-51
Finish Damage
................................. 6-53
FirstGear
..................................... 2-33
Flashers. Hazard Warning
......................... 5-2
Flat Tire. Changing
............................. 5-24
Fluid Capacities
................................ 6-64
FogLmps
.................................... 2-60
Folding Driver’s Seatback
......................... 1-3
Foreign Countries. Fuel
........................... 6-5
FrenchLanguage Manual
11
FrontDoor ..................................... 2-4
Front Parking/Turn Signal Lamp Bulb Replacement
.... 6-34
Front Seat Storage Bin
........................... 2-71
Front Seat Storage Net
........................... 2-71
Front Sidemarker Lamp Bulb Replacement
........... 6-36
FrontTowing
.................................. 5-10
Fluids and Lubricants
............................ 7-34
.. ...........................
9-4
.
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