engine Oldsmobile Cutlass Supreme 1993 s Workshop Manual

When to Add Oil:
I If the oil is at or below the A OD 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 the
Index
under Capacities and Specifications.
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.
3.1 L V6: Adding Engine Oil
Twin
Dual Cam 3.4L V6: Adding Engine
Oil
What Mnd of Oil to Use
Look for Three Things:
SG
“SG” must be on the oil container,
either by itself or combined with other
quality designations, such as
“SG/CC,”
“SG/CD,” “SF, SG, CC,”
etc. These letters show American
Petroleum Institute (API) levels
of
quality.
G designation, you can cause
engine damage not covered by your
1 227

Whaf Kind of Oil to Use (CONT.)
SAE 5W-30
As shown in the viscosity chart, SAE
5W-30 is best for your vehicle.
However, you can use
SAE 1OW-30 if
it’s going to be
0°F (-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.
Energy Conserving I1
Oils with these words on the
container
will help you save fuel.
This doughnut-shaped logo (symbol) is
used on most oil containers to help you
select the correct oil.
You should look for this on the oil
container, and use
only those oils that
display the logo.
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.

If none of them is true, change the oil
every
7,500 miles (12 500 km) or 12
months-whichever comes first.
Change the filter at the first oil change
An engine block heater can be a big
help
if you have to park outside in v
cold weather, 0°F (-18°C) or colder.
your vehicle bas this option, see the
Index under Engine Block Heater.
What to Do with Used Oil

Service & Appearance Care
Air Cleaner
Refer to the Maintenance Schedule to
determine when to replace the air filter
and the
PCV filter.
See the
Index under Scheduled
Maintenance Services.
Operating the engine with
the air cleaner off can cause
you or others to be burned. The air
cleaner not only cleans the air, it
stops flame if the engine backfires.
If it isn’t there, and the engine
backfires, you could be burned.
Don’t drive with it
off, and be
careful working
on the engine with
the air cleaner off.
To Check or Replace:
1. Remove the four screws
the cover. and
pull off
I

Automatic Transaxle Fluid (CONT.)
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 awhile.
In heavy traffic-especially in hot
While pulling a trailer.
To get the right reading, the fluid
should be at normal operating
temperature, which is
180°F to 200°F
(82°C to 93°C).
Get the vehicle warmed up by driving
about
15 miles (24 lm) when outside
temperatures are above 50°F
(10°C). If
it's colder than 50°F
(lO"C), you may
have to drive longer.
90°F (32°C).
weather.
To Check the Fluid Level:
Park your vehicle on a level place.
Place the shift lever in P (Park) with
With your foot on the brake pedal,
the
parking brake applied.
move the shift lever through each gear
range, pausing for about three
seconds in each range. Then, position
the shift lever in
P (Park).
Let the engine run at idle for three to
five minutes.
Then, Without Shutting off the
Engine, Follow These Steps:
1. Pull out the dipstick and wipe it with
a clean rag or paper towel.
2. Push it back in all the way, wait three
seconds and then pull it back out
must be in the crosshatched area.
4. If the fluid level is where it should be,
push the dipstick back in all the way.
-

Adding Coolant
To Check Coolant:
When your engine is cold, the coolant
level should be between
the COLD
and HOT marks or a little higher.
When your
engine is warm, the level
should be u.p to HOT, or a little
higher.
If this light comes on, it means you’re
low
on engine coolant.
To Add Coolant:
If you need more coolant, add the
proper
mix at the coolant recovery
tank.
Turning the radiator pressure I
cap when the engine and
radiator are hot can allow steam
and scalding liquids to blow out
and burn you badly. With the
coolant recovery tank, you will
almost never have to add coolant at
the radiator. Never turn the
radiator pressure cap-even a
little-when the engine and
radia
I are hot.
I I
n

Addhg Coolant (CONT.)
Add coolant mix at the recovery tank,
but
be careful not to spill it. ..
I
You can be burned if you
spill coolant on hot engine
parts. Coolant contains ethylene
glycol, and it will burn if the engine
parts are hot enough. Don't spill coolant on a hot engine.
- . "4,,~,' ,.,2%C?. ,L,;., -A- .<,, .,. ,
Radiator Pressure Cap
When you replace your radiator pressure

Power Steering Fluid
How to Check Power Steering 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
the
Lndex under Fluids G Lubricants.
Windshield Washer Fluid
To Add
Open the cap labeled WASHER
FLUID
ONLY. Add washer fluid until
the bottle
is full.
237

If you have too much brake
fluid, it can spill on the
engine. The fluid will burn
if the
engine is hot enough. You or others
could be burned, and your vehicle
could be damaged. Add brake fluid
only when work is done on the
brake hydraulic system.
? I
When your brake fluid falls to a low
level,
your brake warning light will
come on. See the Index under Brake
System Warning Light.
What to Add
When you do need brake fluid, use only
DOT-3 brake fluid-such as Deko
Supreme
11* (GM Part No. 1052535).
Use new brake fluid from a sealed
container
only.

Engine Identification
The eighth character in your VIN is the
engine code for your
GM engine. This
code
will help you identify your engine,
specifications, and replacement parts in
this section.
Service Parts ldentification Label
You'll find this label on your spare tire
cover. It's very helpful
if you ever need
to order parts. On this label is:
Your VIN.
Its model designation.
Paint information.
A list of all production options and
special equipment.
Be sure that this label is not removed
from the vehicle.
Add-on Electrical Equipment
I