1996 OLDSMOBILE SILHOUETTE engine

You can be injured and your vehicle could be
damaged if you try to do service work on a vehicle without knowing enough about it.
Be sure you have sufficient knowledge, experience, and the- proper replacement
parts and tools before you attempt any
vehicle maintenance task.
Be sure to use the proper nuts, bolts and
other fasteners. “English” and “metric”
fasteners can be easily confused.
If you use
the wrong fasteners, parts can later break
or fall
off. You could be hurt.
Fuel
Use regular unleaded gasoline rated at 87 octane or
higher. At a minimum, it should meet specifications
ASTM D4814 in the United States and CGSB 3.S-M93
in Canada. Improved gasoline specifications have been
developed by the American Automobile Manufacturers
Association (AAMA) for better vehicle performance
and engine protection. Gasolines meeting
the AAMA specification could provide improved driveability
and
emission control system protection compared to other gasolines.
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.
If your vehicle is certified to meet California Emission
Standards (indicated on the underhood tune-up label),
it is designed to operate on fuels that meet California
specifications. If such fuels are not available
in states
adopting California emissions standards, your vehicle
will operate satisfactorily
on fuels meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp on
your instrument panel may turn
on and/or your vehicle
may fail a smog-check test. If this occurs, return to
your authorized Oldsmobile retailer for diagnosis to
determine the cause of failure. In the event
it is
determined that the cause of the condition
is the type of
fuels used, repairs may not be covered by your warranty.
6-2
ProCarManuals.com

In Canada, some gasolines contain an octane-enhancing
additive called MMT. If you use such fuels, your
emission control system performance may deteriorate
and the malfunction indicator lamp on your instrument
panel may turn on. If this happens, return to your
authorized Oldsmobile retailer for service.
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help prevent
deposits from forming in your engine and
fuel system,
allowing your emission control system to function
properly. Therefore,
you should not have to add anything
to
the fuel. In addition, gasolines containing oxygenates,
such as ethers and ethanol, and reformulated gasolines
may be available in your area
to help clean the air. General
Motors recommends that you use these gasolines
if they
comply with the specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. 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.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to find. Never use leaded gasoline or any other fuel not
recommended in the previous text on fuel. Costly repairs
caused by use of improper fuel 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
Ll H 8P7
6-3
ProCarManuals.com

NOTICE:
If you need a new cap, be sure to get the right
type. Your retailer can get one for you.
If you get
the wrong type, it may not fit or have proper
venting, and your fuel tank and emissions system
might be damaged.
Checkhg Things Under the Hood
/I CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
Hood Release
A CAUTION:,,
I
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto
a hot engine.
6-6
ProCarManuals.com

To open the hood, first pull the hood release handle
inside the vehicle.
Next, go to
the front of the vehicle and pull up on the
underhood release.
Lift
the hood. 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 hood prop.
ProCarManuals.com

A. Coolant Recovery Tank
B. Power Steering Fluid Reservoir
C. Engine Oil Fill
D. Engine Oil Dipstick
E. Transaxle Fluid Dipstick
E Brake Master Cylinder
G. Air Cleaner
H. Windshield Washer Fluid Reservoir
I. Battery
ProCarManuals.com

Pull forward on the hood prop to release it from its
storage clip.
Put the end of the hood prop into the slot in
the underside of the hood.
Before closing the hood, be sure all the filler caps are on
properly. Lift the hood to relieve the pressure on
the
hood prop. Remove the hood prop from the slot in the
hood and return the prop to its retainer. Let the hood
down and close
it firmly.
Underhood Lamp
Your underhood lamp will go on when you open
the hood.
Engine Oil
LOW
OIL
If the LOW OIL 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 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 is located at the front of the
engine compartment, near the center. The dipstick
handle has
a bright, yellow loop design for
easier identification.
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.
ProCarManuals.com

Checking 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 down, and check the level.
I
When to Add Oil
If the oil is at or below the ADD mark, then you’ll need
to add some 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.
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.
6-10
ProCarManuals.com

The engine oil fill cap is located just behind the engine
oil dipstick.
Just 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. 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.
What Kind of Oil to Use
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 certified for
gasoline engines.
You should also use the proper viscosity oil for your
vehicle,
as shown in the following chart:
6-11
ProCarManuals.com