Oldsmobile Cutlass Supreme 1993 Owner's Manuals

How This Part is Organized
The remainder of this part is divided into five sections:
Section
A: Scheduled Maintenance Services shows what to
have done and how often. Some of these services can be
complex,
so unless you are technically qualified and have
the necessary equipment, you should let your dealer’s
service department or another qualified service center do
these jobs.
A
Performing maintenance work on a vehicle can be
dangerous. In trying to
do some jobs, you can be
seriously injured.
Do your own maintenance work only
if you have the required know-how and the proper tools
and equipment
for the job. If you have any doubt, have
a qualified technician
do the work. I
If you are skilled enough to do some work on your vehicle,
you will probably want to get the service information GM
publishes.
You will find a list of publications and how to get
them in this manual. See the
Index under Service
Publications.
Section B: Owner Checks & Services tells you what should
be checked whenever you stop for fuel. It also explains what
you can easily do to help keep your vehicle in good
condition.
Section C: Periodic Maintenance Inspections explains
important 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.
289

Maintenance Schedule
Section A: Scheduled Maintenance Services
290
Using Your Maintenance Schedules
This section tells you the maintenance services you should
have done and when you should schedule them. Your
Oldsmobile dealer lmows your vehicle best and wants you to
be happy with it. If you go to your dealer for your service
needs, you’ll know 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 the
Index under Loading Your
Vehicle.
limits.
Fuel.
are driven on reasonable road surfaces within legal driving
use the recommended unleaded fuel. See the Index under
,
Selecting the 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 of these true for your vehicle?
Most trips are less than 4 miles (6 km).
Most trips are less than 10 miles (16 km) 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 shouldn’t ever
If
any one (or more) of these is true for your driving, follow
Schedule
I.
tow a trailer. See the Index under Towing a Trailer.)
Schedule I1
Follow Schedule I1 only if none of the above conditions is
true.
291

Maintenance Schedule
Section A: Scheduled Maintenance Services (cant.)
292
Schedule I
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 km) -
miles (1 6 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.**
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.
+k An Emission Control Service.
12 The U.S. Environmental Protection Agency 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.
TO BE SERVICED
See Explanation of Scheduled Maintenance
Services
following Schedules I and II.
WHEN TO PERFORM
Miles (kilometers) or Months
(whichever occurs jirst).
I 2 1 Chassis Lubrication I Every other oil change. I
Tire and Wheel Rotation and Inspection At 6,000 Miles (10 000 h) and every l5,OOO Miles
(25 000 km) or as necessary. I
Camshaft Tiig Belt Inspection
(3.4L Engine, VIN Code X)* l5,OOO Miles (25 000 km). I I
At 60,OOO Miles (100 000 km) and then every
1 8 I Transaxle Service see ,!%ph&m of Scheduled Maintenance Services
following Schedules I and II.
I 10 I Spark Plug Wxe Inspection** I Every 30,000 Miles (50 OOO h). I
Exhaust Gas Recirculation (EGR) System I Every 30,000 Miles (50 000 km).
Inspection (3.4L Code X engine only)**
14 Fuel Tank, Cap & Lines Inspection** Every 30,000 Miles (50 OOO km). I

The services shown in this schedule up to 48,000 miles (80 000 km) are to be
performed after 48,000 miles
at the same intervals.
MILES (000)
3 16 19 I12 I15 I18 121 124 127 130 133 136 139 142 145 148
293

,. .
Maintenance Schedule
Section A: Scheduled Maintenance Services (cant.)
* An Emission Control Service.
TO BE SERWCED WHEN TO PERFO'RM ITEM
Nom See J&plm.#ion of Scheduled Maintenance Miles (kiomtm) or Mmth
Sewices hllowing !khedules I and II. (whichaver occurs first).
At 7,500 Mks (E 500 kin) and then every l5,oOa
Miles (25 Oao km) or as necessary. I
Camshaft Timing Belt Insptim ~t 6U,OOO Miles (lo0 OOO h) and rherrewy
(3.4L Engine, VIN Code X)* ls,~ Miles (25 OOO km).
I 8 I Transaxle Service
10 I SDarkPlnpl Wm Inspection*a I Every 30,000 Miles (50 OOO km). I
I 14 I Fuel Ti&, Cap and Lines Jnsption*a I Every 30,000 Miles (SO OOO lan). I

The services shown in this schedule up to 45,000 miles (75 000 km) are to be
performed after
45,000 miles at the same intervals.
MILES (000)
KILOMETERS (000)
7.5 45 37.5 30 22.5
15
I 0 I 0 I 0 I 0 I 0 I 0 I
I 0 I I 0 I I 0 I I
295

Maintenance Schedule
Section A: Scheduled Maintenance Services (Cant.)
Explanation of Scheduled Maintenance Services
Below 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
NO. SERVICE
1 Engine Oil and Filter Change”-Always use SG
296
2
Energy Conserving I1 oils for proper viscosity. The
“SG” designation may be shown alone or in
combination with others, such as “SG/CC,”
“SG/CD” or “SF, SG, CC,” etc.
To determine the
preferred viscosity for your vehicle’s engine (e.g.,
SAE 5W-30 or SAE 1OW-30) see the Index under
Engine Oil.
Chassis Lubrication-Lubricate the transaxle shift
linkage, parking brake cable guides, underbody
contact points and linkage. Lubricate the front and
rear suspension and steering linkage.
ITEM
NO. SERVICE
3 Throttle Body Mounting Bolt Torque (3.1L
Code T or M engines only)*-Check the torque of
the mounting bolts and/or nuts.
4 Tire and Wheel Rotation and Inspection-For
proper wear and maximum tire life, rotate your
tires following the instructions in this manual. See
the
Index under Tires, Inspection G Rotation.
Check the tires for uneven wear or damage. If you
see irregular or premature wear, check the wheel
alignment. Check for damaged wheels also.
NOTE: To determine your engine’s displacement and code, see the Index under Engine Identification
* An Emission Control Service.
0 The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty QY
limit recall liability prior to the completion of vehicle useful life. General Motors, however, urges that all re\
commended maintenance services be
performed
at the indicated intervals and the maintenance be recorded in Section E: Maintenance Record.

ITEM
NO. SERVICE
5
6
7
Engine Accessory Drive Belt (s) Inspection
(California
3.1L Code T engine”)-Inspect the
belt for cracks, fraying, wear and proper tension.
Replace as needed.
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 a service manual,
see the
Index under Publications.) Replace parts
as needed.
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 the
Index under Coolant. This provides proper freeze
protection, corrosion inhibitor level, and engine
operating temperature.
Inspect hoses and replace if they are cracked,
swollen or deteriorated. Tighten screw-type hose
clamps. 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.
ITEM
NO. SERVICE
8 Transaxle Service-Change both the fluid and
filter every 15,000 miles (25 000 ltm) if the vehicle
is mainly driven under one or more of these
conditions:
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 the
Index under Towing a Trailer.)
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 (160 000 lun) .
Spark Plug Replacement*-Replace spark plugs
with the proper type. See the
Index under
Replacement Parts.
burns, cracks or other damage. Check the boot fit
at the coils and at the spark plugs. Replace wires
as needed.
10 Spark Plug Wire Inspection**-Inspect for
9
297

Maintenance Schedule
Section A: Scheduled Maintenance Services (Cant.)
ITEM
NO.
11
12
SERVICE
Positive Crankcase Ventilation Inspection*-Inspect system for proper function.
Replace
any worn, plugged or collapsed hoses or
seals. Replace valve only if necessary.
Exhaust Gas Recirculation (EGR) System
Inspection
(3.4L Code X engine only) *A-
Conduct the EGR system service as described in
the service manual.
To purchase a service manual,
see the
Index under Service Publications.
ITEM
NO.
13
14
SERVICE
Air Cleaner Filter Replacement*-Replace every
30,000 miles (50 000 km) or more often under
dusty conditions. Ask
your dealer for the proper
replacement intervals for your driving conditions,
Fuel Tank, Cap and Lines Inspection94nspect
.
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 the Index under Engine Identification.
* An Emission Control Service.
Q The US. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullib 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.