1994 OLDSMOBILE SILHOUETTE engine

5. Put the cap back on the coolant
recovery tank, but leave the radiator
pressure cap off. 6. Start the engine and let it run until you
can feel the upper radiator hose getting
hot. Watch out for the engine fan(s).
7. By this time the coolant level inside
the radiator filler neck may be lower.
If the level is lower, add more of the
proper mix through the filler neck
until the level reaches the base of the
filler neck.
8. Then replace the pressure cap. At any
time during this procedure if coolant
begins to
flow out of the filler neck,
reinstall the pressure cap. Be sure the
arrows
on the pressure cap line up
like this.
171
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Here you will find information about
the care of
your Oldsmobile . This
part begins with service and fuel
information. and then it shows how
to check important fluid and
lubricant levels
. There is also
technical information about
your
vehicle. and a section devoted to its
appearance care
.
Part 6
Service & Appearance Care
Service ........................................................................\
............................................. 182
Fuel
........................................................................\
.................................................. 183
Hood Release ........................................................................\
................................... 186
Engine Oil ........................................................................\
........................................ 190
Air Cleaner
........................................................................\
...................................... 194
Transaxle Fluid
........................................................................\
................................ 195
Engine Coolant
........................................................................\
................................ 197
Power Steering Fluid
........................................................................\
....................... 199
Windshield Washer Fluid
........................................................................\
................ 200
Brakes
........................................................................\
.............................................. 201
Battery
........................................................................\
............................................. 203
Bulb Replacement
........................................................................\
........................... 203
Windshield Wiper Blade Replacement
................................................................... 205
Loading Your Vehicle
........................................................................\
..................... 206
Tires
........................................................................\
................................................. 207
Appearance Care ........................................................................\
............................. 212
Vehicle Identification Number (VIN)
.................................................................... 218
Add-on Electrical Equipment
........................................................................\
........ 219
Fuses & Circuit Breakers ........................................................................\
................ 219
Capacities and Specifications
........................................................................\
......... 224
Normal Maintenance Replacement Parts
............................................................... 226
Fluids
& Lubricants ........................................................................\
........................ 227
Replacement
Bulbs ........................................................................\
.......................... 228
181
ProCarManuals.com

Fuel
Use regular unleaded gasoline rated at
87 octane or higher. It should meet
specifications
ASTM D4814 in the U.S.
and CGSB 3.5-92 in Canada. These
fuels should have the proper additives,
so you should not have to add anything
to the fuel.
In the
U.S. and Canada, it’s easy to be
sure you get the right kind
of gasoline
(unleaded). You’ll see “UNLEADED”
right on the pump. And only unleaded
nozzles will fit into your vehicle’s filler
neck.
Be sure the posted octane is at least
87.
If the octane is less than 87, you may
get
a heavy knocking noise when you drive.
If it‘s bad enough, it can damage
your engine.
If you’re using fuel rated at 87 octane or
higher and you still hear heavy
knocking, your engine needs service.
But don’t worry if you hear a little
pinging noise when you’re accelerating
or driving up a hill. That’s normal, and
you don’t have to buy a higher octane
fuel to get rid of pinging. It’s the heavy,
constant knock that means you have a
problem.
What about gasoline with blending
materials that contain oxygen
(oxygenates), such as MTBE or
alcohol?
MTBE is “methyl tertiary-butyl ether.”
Fuel that
is no more than 15% MTBE is
fine for your vehicle.
Ethanol is ethyl or grain alcohol.
Properly-blended fuel that is no more
than
10% ethanol is fine for your
vehicle.
Methanol is methyl or wood alcohol.
NOTICE:
Fuel that is more than 5%
methanol is bad for your vehicle.
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. And even at
5% or less, there must be
“cosolvents” and corrosion
preventers in this fuel to help avoid
these problems.
Gasolines for Cleaner Air
Your use of gasoline with deposit
control additives will help prevent
deposits from forming in your engine
and fuel system. That helps keep your
engine in tune and your emission
control system working properly. It’s
good for your vehicle, and you’ll be
doing your part for cleaner air.
Many gasolines are now blended with
oxygenates. General Motors
recommends that you use gasolines
with these blending materials, such as
183
ProCarManuals.com

Service &Appearance Care
184
MTBE and ethanol. By doing so, you
can help clean the air, especially in
those parts
of the country that have
high carbon monoxide levels.
In addition, some gasoline suppliers are
now producing reformulated gasolines.
These gasolines are specially designed
to reduce vehicle emissions. General
Motors recommends that you use
reformulated gasoline. By doing
so, you
can help clean the air, especially in
those parts
of the country that have
high ozone levels.
You should ask your service station
operators if their gasolines contain
deposit control additives and
oxygenates, and if they have been
reformulated to reduce vehicle
emissions.
Fuels in Forei’ Countries
If you plan on driving in another
country outside the
U.S. or Canada,
unleaded
fuel may be hard to find. Do
not use leaded gasoline. If you use even
one tankful, your emission controls
won’t work well or at all. With
continuous use, spark plugs can get
fouled, the exhaust system can corrode,
and your engine
oil can deteriorate
quicltly. Your vehicle’s oxygen sensor
will be damaged.
All of that means
costly repairs that 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
North American Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
L1H 8P7
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The hood prop rod may be hot due to
increased engine temperatures under the hood,
so be careful when handling
it. Use your hood prop sleeve when
handling the prop.
Pull forward on the hood prop to
release it from its storage clip. Then put
the end of the hood prop into the slot in
the underside of the hood. Before closing
the hood, be sure all the
filter caps are on properly. Then lift the
hood to relieve pressure
on the hood
prop. Remove the hood prop from the
slot in the hood and return the prop to
its retainer. Then just let the hood down
and close
it firmly.
3
187
ProCarManuals.com

Service &Appearance Care
3100 V6 Engine
1. Engine Coolant Reservoir
2. Power Steering Fluid Reservoir
3. Air Cleaner
4. Brake Fluid Reservoir
5. Windshield Washer Fluid Reservoi
6. Battery r
7. Automatic
Transaxle Fluid Dipstick
8. Engine Oil Dipstick
9. Engine Oil Fill Cap
10. Radiator Cap
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P
3800 V6 Engine
1. Engine Coolant Reservoir
2. Power Steering Fluid Reservoir
3. Automatic Transaxle Fluid Dipstick
4. Brake Fluid Reservoir
5. Windshield Washer Fluid Reservoir
6. Battery
7. Air Cleaner
8. Engine Oil Dipstick
9. Engine Oil Fill Cap
10. Radiator Cap
189
ProCarManuals.com

Service &Appearance Care
190
Underhood Light
Your underhood light will go on when
you open the hood.
Engine Oil
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.
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.
To Check 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 lower, and check the level.
3100 V6: Checking Engine Oil
3800 V6: Checking Engine Oil
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