Oldsmobile Cutlass Supreme 1993 Owner's Manuals

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

2. Remove the air cleaner filter.
3. Be sure to install the air cleaner filter
andreplace the cover tightly.

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.
-

3.1 L V6: Checking Automatic Transaxle
I Fluid
Twin Dual Cam 3.4L V6: Checking
Automatic Transaxle Fluid
How to Add Transaxle Fluid
Refer to the Maintenance Schedule to
determine what kind of transaxle fluid
to use. See the
Index under Fluids and
Lubricants.
If the fluid level is low, add only enough
of the proper fluid to bring the fluid
level into the cross-hatched area on the
dipstick.
It doesn’t take much fluid,
generally less than a pint
(0.5L). Don’t
overfill. We recommend you use only
fluid labeled
DEXRON*-HE, because
fluids with that label are made
especially for your automatic transaxle.
Damage caused by fluid other than
DEXRONB-UE is not covered by your
new vehicle warranty.
After adding fluid, recheck the fluid
level as described under
How to Check.
When the correct fluid level is obtained,
push the dipstick back in all the way.
3.1 L V6 Adding Automatic Transaxle
Fluid
Twin Dual Cam 3.4LV6: Adding
Automatic Transaxle Fluid
r-
233

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

238
Service & Appearance Care
Windshield Washer Fluid (CONT.)
Brake Master Cylinder
Your brake master cylinder is here. It is
filled with DOT-3 brake fluid.
Your vehicle is equipped with either Standard Power Brakes or the Anti-
Lock Brake System.
There are only two reasons why the
brake fluid level in your master cylinder
might go down. The first
is that the
brake fluid goes down to an acceptable
level during normal brake lining wear.
When new linings are put in, the fluid
level goes back up. The other
reason is that fluid is leaking
out of the brake system. If it is, you
should have your brake system fixed, since a leak means that sooner or later
your brakes won’t work well, or won’t
work at all.
So, it isn’t a good idea to “top off’ your
brake fluid. Adding brake fluid won’t correct a leak. If you add fluid when
your linings are worn, then you’ll have
too much fluid when you get new brake
linings. You should add (or remove)
brake fluid, as necessary, only when
work is done on the brake hydraulic
system.