fuel Oldsmobile Cutlass Supreme 1994 s User Guide

Fuel
Be sure the posted.octane is at least 87.
I€ 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.
I
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1 78
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
MTBE and ethanol. By doing so, you
can he€p 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 Foreign Countries

llou can also write us at the following
iddress for advice. Just tell us where
{ou’re going and give your Vehicle
Identification Number
(VIN) .
General Motors Overseas Distribution
North American
Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
LIH 8P7
Corporation
Filling Your Tank
Fuel Capacity:
16.5 U.S. Gallons (62 L). Use unleaded
fuel
only.
The cap is behind a hinged door on the
left side
of your vehicle. While
refueling; hang the cap. inside the
fuel door.
To take off the cap, turn it slowly to the
left (countercloclwise)
.
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Service &Appearance Care
180
Be careful not to spill gasoline. Clean
gasoline
from painted surfaces as soon
as possible. See Cleaning the Outside
of Your Oldsmobile in the Index.
When you put the cap back on, turn it
to the right until
you hear at least .three
cliclcs .
If you need a new cap, be sure to
get the right type. Your dealer 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.
Checking Things Under the
Hood
The following sections tell you how to
check
fluids, lubricants and important
parts underhood.
Hood Release
To open the hood, first pull the handle
inside the vehicle. Then
go
to the front of the vehicle and
release
the^ secondary hood release.
Lift the hood.
I

Service & Appearance Care
Engine Oil
If the LOW OIL LEVEL 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 Level 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.
Turn
off the engine and give the 0il.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 bzck
in all the way. Remove it again, keeping
the tip lower, and check the level.
3100 V6: Checking Engine Oil
Twin
Dual Cam 3.4L V6: Checking
Engine Oil
’
When to Add Oil
If the oil is at or below the ADD line,
then you’ll need to add some
oil. But
you must use the right kind. This
section 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.
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.

3100 V6: Adding Engine Oil
c
’TwitEDual .Cam 3.4L V6: Adding
Engine
Oil
What Kind of Oil to Use
Beginning midyear 1993, oils of the
proper quality for your vehicle will be
identified with this new “starburst”
symbol. The “starburst” symbol
indicates that the oil has been certified
.by the American Petroleum Institute
(API)
, and is preferred for use in your
gasoline engine.
You should look for this on the front of
the oil container, and use only oils that
display this new symbol.
You should also use the proper viscosit:
oil for your vehicle, as shown in the
following chart.
RECOMMENDED SAE VISCOSITY GRADE ENGlNE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING,
SELECT THE LOWEST SAE VISCOSITY GRADE OIL
FOR THE EXPECTED TEMPERATURE RANGE.
COLD
LOOK FOR
WEATHER LABELS
HOT ONE OF THESE
1
SAE 5W-30
PREFERRED
IF NEITHER SAE 5W-30 NOR SAE 1OW-30
GRADE OILS ARE AVAILABLE, SAE 30 GRADE MAY. BE USED AT TEMPERATURES WEATHER ABOVE 40 DEGREES F (4 DEGREES C).
DO NOT USE
SAE 1OW-40, SAE 2OW-50 OR ANY OMER GRADE OIL NOT RECOMMENDED.
4s shown in the chart, SAE 5W-30 is
3est for your vehicle. However, you can
Ise SAE
1OW-30 if it’s going to be 0°F
L
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Service & Appearance Care
186
(-18°C) or above. These numbers on an
oil container show its viscosity, or
thickness. Do not use other viscosity
oils,
such as SAE 1OW-40 or SAE 20W-50.
If you cannot find oils with the new
“starburst” symbol on the front of the
container, you should look for and use
oils containing the following three things:
SH or SG
“SH” or “SG” must be on the oil
container, either by itself or combined
with other quality designations, such
as “SH/CD,” “SH,SG,CD,”“SG/CD,”
etc. These letters show American
Petroleum Institute (API) levels of
quality.
SAE 5W-30
Energy Conserving I1
Oils with these words on the container
will help you save fuel.
These three things are usually included in
a doughnut shaped logo (symbol) on
most containers. If you cannot find
oils
with the “starburst” symbol, you should
look for oils with the doughnut shaped
symbol, containing the three things
noted above.
NOTICE:
If you use oils that do not have
either the “starburst” symbol or an
API
SH or SG designation, you can
cause engine damage not covered
by your warranty.
GM Goodwrench* oil (in Canada, GM
Engine Oil) meets all the requirements
for your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your
Oldsmobile dealer is ready to advise if
you think something should be added.
When to Change Engine Oil
See if any one of these is true for you:
Most trips are less than 4 miles
(6 km)
.
It’s below freezing outside and most
trips are less than 10 miles (16 ltm).
The engine is at low speed most of the
time (as in door-to-door delivery, or in
stop-and-go traffic).
You tow a trailer often.
Most trips are through dusty places.
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 comes
-first.
If none of them is true, change the oil
every
7,500 miles (12 500 lm) or 12
months -whichever comes first.
Change the filter at the first
oil change
and at every other oil change after that.
Engine Coolant Heater (Engine
Block Heater) (omoN)
An engine coolant heater can be a big
help if you have to
park outside in very

Inflation - Tire Pressure
The Tire-Loading Information label
which is on the inside of the trunk lid
shows the correct inflation pressures for
your tires, when they’re. cold.
Cold
means your vehicle has been sitting for
at least three hours or driven no more
than a mile.
NOTICE:
Don’t let anyone tell you that
underinflation
or overinflation is all
right. It’s not. If your tires don’t
have enough air (underinflation)
you can get:
Too much flexing
Too much heat
Tire overloading
Bad wear
Bad handling
Bad fuel economy.
If your tires have too much air
(overinflation), you can get:
Unusual wear
Bad handling
Rough ride
Needless damage from road
hazards.
When to Check
Check your tires once a month or more.
Don’t forget your compact spare tire. It
should be at
60 psi (420 1tPa).
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Service & Appearance, Care
1 224
Passenger Side Underhood Electrical Center
Fuse Ratin Circuitry
(AMP7
1
2
3
4
5
6
7
8
9
10
11
12
13
60.
60
60
60
20
15
15
15
15
15
1-5
15 Instrument
Panel
Instrument Panel
Cooling Fan
Instrument Panel
ECM; Fuel Pump
Trunk Release
Not Used
Cruise Control; Air Conditioner (3.4L Only)
Engine Emission Controls
Transmission Torque Converter Clutch
Electronic Ignition System
ECM
Fuel Injectors
Relay
14
15
16
17
18
Circuitry
Air Conditioner Compressor
Fuel Pump
Not Used
Driver Side Engine Cooling
Fan Control
Passenger Side Engine
Cooling Fan Control

Service & Appearance Care
Refrigerant (R-l34A), Air Conditioning ........................................... 2.0 Dounds 0.91 kg
Not all air conditioning refrigerants are the same. If the air
conditioning system-in
your vehicle needs refrigerant, be sure
the proper refrigerant is used.
If you%e not sure, ask your
Oldsmobile dealer.
For additional information, see your
“Warranty and Owner Assistance Information ” booklet.
Fuel Tank ........................................................................\
.................... 16.5 gallons 62.0 L
Power Steering
Pump Only ........................................................................\
............... 2 pints 0.925 L
Wheel Nut Torque ........................................................................\
..... 100 lb. ft. (140 Nem)
Battery Size
3100 V6 ........................................................................\
.................... 525 CCA
Twin Dual Cam (DOHC) 3.4L V6 .................................................. 690 CCA