1994 Oldsmobile Cutlass Supreme maintenance

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.

inspections that your Oldsmobile
dealer’s service department or another
qualified service center should perform.
“Section D: Recommended Fluids
&
Lubricants” lists some products GM
recommends to help keep your vehicle
properly maintained. These products, or
their equivalents, should be used
whether you do the work yourself or
have it done.
“Section
E: Maintenance Record”
provides a place for you to record the
maintenance performed on your vehicle.
Whenever any maintenance is
performed, be sure to write it down in
this section. This will.help you
determine when your next maintenance
should be done. In addition, it
is a good
idea to keep your maintenance receipts.
They may be needed to qual@ your
vehicle for warranty repairs.
Section A: Scheduled
Maintenance Services
Using Your Maintenance
Schedule
This section tells you the maintenance
services you should have done and when
you should schedule them. Your
Oldsmobile dealer knows your vehicle
best and wants you to be happy with it.
If you go to your dealer for your service
needs, you’ll how that GM-trained and
supported service people will perform
the work using genuine GM parts.
These schedules are for vehicles that:
carry passengers and cargo within
recommended limits. You will find
these limits on your vehicle’s Tire-
Loading Information label. See
Loading Your Vehicle in the Index.
are driven on reasonable road
surfaces within legal driving limits.
use the recommended unleaded fuel.
See
Fuel in the .Index.
Selecting fhe Right Schedule
First you’ll need to decide which of the
two schedules is right for your vehicle.
Here’s how
to decide which schedule to
follow:
Schedule I
Is any one of these true for your
vehicle?
Most trips are less than 4 miles (6 lm).
Most trips are less than 10 miles (16
lun) when outside temperatures are
below freezing.
The engine is at low speed most of the
time (as in door-to-door delivery, or in
stop-and-go traffic).
You operate your vehicle in dusty
areas.
You tow a trailer. (With some models,
you should never tow a trailer. See
Towing a Trailer in the Index.)
If any one (or more) of these is true for
your driving, follow Schedule
I.
Schedule I1
Follow Schedule I1 only if none of’the
above conditions is true.
L
237

Maintenance Schedule
238
Schedule l
Follow Schedule I if your vehicle is
MAINLY driven under one or more of
the following conditions:
When most trips are less than 4 miles
When most trips are less than 10
(6 lun) .
miles (16 ltm) and outside
temperatures remain below freezing.
When most trips include extended
idling and/or frequent low-speed
operation, as in stop-and-go traffic.
When towing a trailer. (With some
models, you should never tow a
trailer. See
Towing a Trailer in the
Index.)
When operating in dusty areas.
Schedule I should also be followed if
the vehicle is used for delivery service,
police,
taxi or other commercial
applications.
ITEM TO BE SERVICED
Nom See Explanation of Scheduled Maintenance
Services
following Schedules I and 11.
WHEN TO PERFORM
Miles (kilometers) or Months
(whichever occurs first).
I 2 I Chassis Lubrication I Every other oil change. I
I 4 I Engine Accessory Drive Belt Inspection* I Every 30,000 Miles (50 000 lun) or 24 Months. I
I 6 I Cooling System Service" I Every 30,000 Miles (50 000 lun) or 24 Months. I
I
8 I Spark Plug Replacement* I Every 30,000 Miles (50 000 km). I
I 12 I Fuel Tanlc, Cap and Lines Inspection*+ I Every 30,000 Miles (50 000 lun).
~
I
I

--
The services shown on this chart up to
60,000 miles (100 000 km) should be
performed after
60,000 miles at the
same intervals.
= An Emission Control Service.
t = The U.S. Environmental Protection
Agency
or the California Air Resources
Board has determined that the failure to
perform this maintenance item
will not
nullify the emission warranty
or limit
recall liability prior to the completion of
vehicle useful life. General Motors,
however, urges that all recommended
maintenance services be performed at the
indicated intervals and the maintenance
be recorded in Section
E: Maintenance
Record.
239

~~ ~ Maintenance Schedule
Schedule
I1 ITEM . TO BE SERVICED WHEN TO PERFORM
No' Follow Schedule I1 ONLY if none of See Explanation of Scheduled Maintenance Miles (kilometers) or Months
the driving conditions specified in Services following Schedules I and 11. (whichever occurs.first).
Schedule i apply.
-

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

driven under one or more of these
c.onditions:
In heavy city traffic where the
outside temperature: regularly
reaches
90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
(With some models, you shouldn’t
ever tow
a trailer. See Towing a
Trailer
in the Index.)
Uses such as.found in taxi, police
car or delivery service.
If-you do not use your vehicle under
any of these conditions, change both
the fluid and filter every
100,000
miles (166 000 km) .
Replace spark plugs with the proper
type. See
Replacement-Parts in the
Index.
9. Spark Plug Wire Inspection*T -
Inspect for burns, .cracks or other
damage. Check the boot fit at the
coils and at the spark plugs. Replace
wires as needed.
8. Spark PIug~Replacement* -
-10. Exhaust Gas Recirculation (EGR)
System Inspection
(3.4L Code X
engine only)*? - Conduct the
EGR system service-as described in
the service manual.
To purchase a
service manual, see Service
Publications
in the Index.
1 1. Air Cleaner Filter Replacementgc -
Replace every 30,000 miles
(50 000 lun) or more often under
dusty conditions. Ask your dealer
for the proper replacement intervals
for your driving conditions.
12. Fuel Tank, Cap and Lines
Inspectiong‘t
- Inspect fuel tank,
cap and lines (including fuel rails
and injection assembly). for damage
or leaks. Inspect fuel cap gasket for
an even filler neck imprint or any
damage. Replace parts as needed.
Periodic replacement of the fuel
filter is not required.
NOTE: To determine your engine’s
displacement and code, see
Engine
Identification
in the Index.
* = An Emission Control Service.
f = The U.S. Environmental Protection
Agency
or the California Air Resources
Board has determined that the failure to
perform this maintenance item will not
nullify the emission warranty
or limit
recall liability prior to the completion of
vehicle
useful life. General Motors,
however, urges that all recommended
maintenance services be performed at the
indicated intervals and the maintenance
be recorded in “Section
E: Maintenance
Record.”
243