1994 Oldsmobile Cutlass Supreme service schedule

Part 7: Maintenance Schedule
This part tells you when to perform
vehicle maintenance and what fluids
and lubricants
to use.
Part 6: Service & Appearance Care Part 8: Customer Assistance Information
Here the manual tells you how to keep This part includes important
your Oldsmobile running properly and information about reporting safety
looking good. defects and
gives you details about
the “Roadside Assistance” program.
You
will also find customer
satisfaction phone numbers (including customer satisfaction
numbers for the hearing and speech
impaired) as well
as the mediation/
arbitration procedure. We’ve also
included ordering information for service publications
in this part.
Part 9: Index
Here’s an alphabetical listing of
almost every subject in this manual.
You can use
it to quickly find
something you want to read.
Service Station Information:
This is a quick reference of service
information. You can find it on the
last page of this manual.
7

Mainfenance When Trailer Towing
Your vehicle will need service :nore
often when you’re pulling a trailer. See
the
Maintenance Schedule for more on
this. Things that are especially
important in trailer operation are
automatic transaxle fluid (don’t
overfill), engine oil, belts, cooling
system, and brake adjustment. Each of
these is covered in this manual, and the
Index will help you find them quickly. If
you’re trailering, it’s a good idea to
review these sections before you start
your trip.
Check periodically to see that all hitch
nuts and bolts are tight.

cold weather, 0°F (-18°C) or colder. If
your vehicle has this option, see
Engine
Coolant Heater
in the Index.
What to Do wifh Used Oil
Did you know that used engine oil
contains certain elements that may be
unhealthy for your skin and could even
cause cancer? Don’t let used oil stay on
your skin for very long. Clean your skin
and nails with soap and water, or a
good hand cleaner. Wash or properly
throw away clothing or rags containing
used engine oil.. (See the manufacturer’s
warnings about the use and disposal of
oil products.)
Used oil can be areal threat to the
environment. If you change your own
oil, be sure to drain all free-flowing oil
from the filter before disposal. Don’t
ever dispose of oil by putting it in the
trash, pouring it on the ground, into
sewers, or into streams or bodies of
water. Instead, recycle it by taking it to
a place that collects used oil. If you
have a problem properly disposing of
your used oil, ask your dealer, a service
station or a local recycling center for
help.
Air Cleaner
Refer to the Maintenance Schedule to
determine when to replace the air filter
and the crankcase ventilation filter.
See
Scheduled Maintenance Services i3
the
Index.
NOTICE:
If the air cleaner is off, a backfire
can cause a damaging engine fire.
And, dirt can easily get into your
engine, which will damage
it.
Always have the air cleaner in place
when you’re driving.
To Check or Replace the Air Filter:
1. Remove the four screws and pull off
the cover.
187

Service & Appearance Care
2. Remove the air cleaner filter.
3. Be sure to install the air cleaner filter
and replace the cover tightly.
Automatic Transaxk Fluid
When fo Check and Change
A good time to check your automatic
transaxle fluid level is when the engine
oil is changed. Refer to the Maintenance
Schedule to determine when to change
your fluid. See
Scheduled Maintenance
Services
in the Index.
How to Check
Because this operation can be a little
difficult, you may choose to have this
done at an Oldsmobile dealership
Service Department.
If you do it yourself, be sure to follow
all the instructions here, or
you could
get
a false reading on the dipstick.
NOTICE:
Too much or too.little fluid can
damage your transaxle.
Too much
can mean that some of the fluid
could come out and fall
on hot
engine parts
or exhaust system,
starting a
fire. Be sure to get an
accurate reading if you check your
transaxle fluid.
Wait at least
30 minutes before
checking the transaxle fluid level
if you
have been driving:
When outside temperatures are above
At high speed for quite a while.
In heavy traffic - especially in hot
90°F (32°C).
weather.
While pulling a trailer.
To get the right reading, the fluid
should be at
normal operating
temperature, which is 18O"F-to
2OOpF
(82°C to 93T).
Get the vehicle warmed up by driving
about
15 miles (24 lun) 'when outside
temperatures are above
50°F (10°C). If

Service & Appearance Care
Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi
(105kPa) pressure-type cap and
must be tightly. installed
io prevent
coolant loss and possible engine
damage from overheating. Be sure
the arrows on the cap line up with
192
Add coolant mix at the recovery tank,
but be careful not to spill it.
L I
the overflow tube on the radiator
filler neck.
I Power Steering Fluid
How To Check Power Steering
When you replace your radiator premre
cap, an
AC@ cap is recommended.
Thermostat
Engine coolant temperature is
controlled by a thermostat in the engine
coolant system. The thermostat stops
the flow of coolant through the radiator
until the coolant reaches a preset
temperature.
When you replace your thermostat, an
AC@ thermostat is recommended.
Fluid
-
Unscrew the cap and wipe the dipstick
with a clean rag. Replace the cap and
completely tighten it. Then remove the
cap again and look at the fluid level on
the dipstick.
When the engine compartment is hot,
the level should be at the
H mark.
When the engine compartment is
cool, the level 'should be at the
C
mark.
What to Add
Refer to the Maintenance Schedule to
determine what kind of fluid to use. See

208
How to Check
Use a good quality pocket-type gage to
check tire pressure. Simply looking at
the tires will not tell you the pressure,
especially if you have radial tires
-
which may look properly inflated even if
they’re underinflated.
If your tires have valve caps, be sure to
put them back on. They help prevent
leaks by keeping out dirt and moisture.
~
Tire lnspection and Rotation
To make your tires last longer, have
them inspected and rotated at the
mileages recommended in the
Maintenance Schedule.
See Scheduled
Maintenance Services
in the Index.
Use this rotation pattern.
After the tires have been rotated, adjust
the front and rear inflation pressure as
shown
on the Tire-Loading Information
label. Make certain that all wheel nuts
are properly tightened. See
Wheel Nut
Torque in the Index.

This part covers the maintenance
required for your Oldsmobile.
Your
vehicle needs these services to retain
its safety, dependability and emission
control performance.
Have you purchased the
GM Protection Plan?
The Plan supplements your new vehicle warranties. See your
Oldsmobile dealer for details.
Part 7
Maintenance Schedule
Section
Introduction
A Word About Maintenance ........................................................................\
........ 236
Your Vehicle and the Environment
..................................................................... 236
How This Part is Organized ........................................................................\
........ 236
A. Scheduled Maintenance Services
Using Your Maintenance Schedules .................................................................... 237
Selecting the Right Schedule
........................................................................\
....... 237
Schedule
I ........................................................................\
..................................... 238
Schedule
I1 ............................... ........................................................................\
.... 240
Explanation
of Scheduled Maintenance Services . .. . ... .. . .. . . . . .... .. . .. . .. . ..... . .... . ....... 242
B. Owner Checks and Services
At Each Fuel Fill ........................................................................\
........................... 244
At Least Once a Month
........................................................................\
................ 244
At Least Once
a Year ........................................................................\
................... 245
C. Periodic Maintenance Inspections .................. ................................................ 247
D. Recommended Fluids &Lubricants ............................................................... 248
E. Maintenance Record ........................................................................\
................ 250
235

How This Part is, Organhed
!to
The remainder of this part is divided in
five sections:
“Section
A: Scheduled Maintenance-
Services”
shows what to have done .and
how often.- Some
of these.services am be
complex,
so unless you are technidy
qualified and have.the necessary
.equipment,
you should kt!tyour dealer’s
service department or another qualified
service Center
do these jobs.