1994 Oldsmobile Cutlass Supreme oil viscosity

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
185

1
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

Maintenance Schedule
242 ~
Explanation of~scheduled
Mainfenance Services
Following are explanations of the
services listed in Schedule I and
Schedule
11.
The proper fluids and lubricants to use
are listed in Section D. Make sure
whoever services your vehicle
uses
these. All parts should be-replaced and
all necessary repairs done before you or
anyone else drives the vehicle.
ITEM SERVICE
NO.
1. Engine Oil and Filter Change* -
Always use SH or SG Energy
Conserving I1 oils of proper viscosity.
The “SH” or “SG” designation may
be shown alone or in combination
with others, such as “SH/CD,” “SH,
SG, CD,”“SG/CD,” etc. To
determine the preferred viscosity for
your vehicle’s engine (e.g., SAE 5W-
30 or SAE 10W-30), see
Engine Oil
in the Index.
2. Chassis Lubrication - Lubricate
suspension and steering linkage.
Lubricate the transaxle shift linkage,
and parking brake cable guides,
underbody contact points and
linkage.
3. Tire and Wheel Rotation and
Inspection
- For proper wear and
maximum tire life, rotate your tires
following the instructions in this
manual. See
Tires, Inspection 6
Rotation in the hdex. Check the
tires for uneven wear or damage.
If
you see irregular or premature wear,
check the wheel alignment. Check for
damaged wheels also.
Inspection *‘ - Inspect the belt for
cracks, fraying, wear and proper
tension. Replace as needed.
5. Camshaft Timing Belt Inspection
(3.4L Code X engine only) * -
Inspect for cracks, wear or oiliness.
Check tensioner for proper operation.
See the service manual.
(To purchase
4. Engine Accessory Drive Belt
a service manual, see Service
Publications
in the Index.) Replace
parts as needed.
6. Cooling System Service* - Drain,
flush and refill the system with new
or approved recycled. coolant
conforming
to GM Specification
1825M. Keep coolant at the proper
mixture as specified. See
Coolant in
the
Index. This provides proper
freeze and boil protection, corrosion
inhibitor level and maintains proper
engine operating temperature.
Inspect hoses and replace
if they are
cracked, swollen or deteriorated.
Clean the outside of the radiator and
air conditioning condenser. Wash the
pressure cap and neck.
To help ensure proper operation, we
recommend a pressure test of both
the cooling system and the pressure
cap.
7. Transaxle Service - Change both
the fluid and filter .every
15,000 miles
(25
000 lm) if the vehicle is mainly

I Section D: Recommended Fluids and Lubricants
VOTE: Fluids and lubricants identified below by name, part number or specification may be obtained from your GM dealer.
I 248
USAGE
Engine Oil
Engine Coolant
Hydraulic Brake System
Parking Brake Guides
Power Steering System
Automatic Transaxle
Key Lock Cylinders
Automatic Transaxle Shift Linkage
FLUID/LUBRICANT
API service SH or SG Energy Conserving I1 oils of the proper viscosity. The “SH) or “SG’ designation
may be shown alone or
in combination with others, such as “SH/CD,” “SH,SG,CD,”“SG/CD,” etc.\
To
determine the preferred viscosity for your vehicle’s engine, see Engine Oil in the Index.
50/50 mixture of water (preferably distilled) and good quality ethylene glycol base antifreeze
(GM Part No. 1052753 or equivalent) conforming to GM Specification 1825M or approved
recycled coolant conforming to GM Specification
1825M.
Delco Supreme 1 1s Brake Fluid (GM Part No. 1052535 or equivalent DOT-3 brake fluid).
Chassis lubricant (GM Part No. 1052497 or equivalent) or lubricant meeting requirements of
NLGI Grade
2, Category LB or GC-LB.
GM Hydraulic Power Steering Fluid (GM Part No. 1052884 or equivalent).
DEXRONB-I11
or DEXRONB-IIE Automatic Transmission Fluid.
Lubricate with Multi-Purpose Lubricant (GM Part No. 12345120), synthetic SAE 5W-30 engine
oil or silicone lubricant (GM Part No. 1052276 or 1052277).
Engine oil.