1994 Oldsmobile Cutlass Supreme coolant

160
Cooling System
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(€3) Radiator pressure cap
(C) Electric engine fans If
the coolant inside the coolant
recovery tank
is boiling, don’t do
anything else until it cools down.
The coolant level should be at or above
the
COLD mark. If it isn’t, you may
have a leak in the radiator hoses, heater
hoses, radiator, water pump
or
somewhere else in the cooling system.

NOTICE:
In cold weather, water can freeze
and crack the engine, radiator,
heater core and other-parts. Use the
recommended coolant.

2. Then keep turning the pressure cap,
but now push down as you turn it.
Remove the pressure cap. 3. After the engine cools, open the
coolant air bleed valve or valves.
3100 V6 (VIN Code M): There are
two bleed valves. One is located on
the thermostat housing. The other is
located on the thermostat bypass
tube.
3.4L V6 (VIN Code X): There are
two bleed valves. They are located
on
the thermostat housing and heater
inlet pipe.
163

Problems on the Road
' 164
4. Fill the radiatot with the praper mix,
.up to the base of the filler neck. If
you see a stream af coolant coming
from. an air bleed valve, close the
valve. Otherwise.,
close. the valves
&er the radiator is filled.
5. Rinse or wip*e any spilled coolant
from the engine compartment,
6. Then fill the coolant recovery tank to
the
COLD mark.
7. Put the cap back on the coolant
recovery tank, but. leave the radiator
pressure cap
off.

8. Start the engine and let it run until
you can feel the upper radiator hose
getting hot. Watch out for the engine
fans.
9. By this time the coolant level inside
the radiator filler neck may be lower.
If the level is lower, add more of the
proper mix through the filler neck
until the level reaches the base of the
filler neck.
10. Then replace the pressure cap. At
any time during this procedure if
coolant begins to flow out of the
filler neck, reinstall the pressure
cap. Be sure the arrows on the
pressure cap.line up like this.
11. Check the coolant in the recovery
tank. The level in the coolant
recovery tanlc should be at the
HOT
mark when the engine is hot or at
the
COLD mark when the engine is
cold.
Ifa Tire Goes Flat
It’s unusual for a tire to “blow out”
while you’re driving, especially
if you
maintain your tires properly. If air goes
out of a tire, it’s much more likely to
leak out slowly. But if you should ever
have
a “blowout,” here are a few tips
about what to expect and what to
do:
If a front tire fails, the flat tire will
create a drag that pulls the vehicle
toward that side. Take your foot off the
accelerator pedal and grip the steering
wheel firmly. Steer to maintain lane
position, then gently brake to a stop
well out of the traffic lane.
A rear blowout, particularly on a curve,
acts much like a slid and may require
the same correction you’d use
in a skid.
In any rear blowout, remove your foot
from the accelerator pedal. Get the
vehicle under control by steering the
way you want the vehicle to go. It may
be very bumpy and noisy, but you can
still steer. Gently brake to a stop, well
off the road if possible.
If a tire goes flat, the next section shows
how to use your jacking equipment to
change a flat tire safely.
165

Service & Appearanctr Care
3700 V6 Engine (CODE M).
When you open the hood, you’ll see:
1. Power Steering Fluid Reservoir
2. Engine Oil Fill Cap
3. Automatic Transaxle Fluid Dipstick
4. Brake Fluid Reservoir
5. Windshield Washer Fluid Reservoir
6. Battery
7. Air Cleaner
8. Engine Oil Dipstick
9. Radiator Pressure Cap
IO. Engine Coolant Reservoir

Twin Dual Cam (DOHC) 3.4L V6
Engine (CODE x)
When you open the hood, you’ll see:
1. Power Steering Fluid Reservoir
2. Automatic Transaxle Fluid Dipstick
3. Brake Fluid Reservoir
4. Windshield Washer Fluid Reservoir
5. Battery
6. Air Cleaner
7. Engine Oil Fill Cap
8. Engine Oil Dipstick
9. Radiator Pressure Cap
IO. Engine Coolant Reservoir
183

1
Service & Appearance Care
186
(-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.
If you cannot find oils with the new
“starburst” symbol on the front of the
container, you should look for and use
oils containing the following three things:
SH or SG
“SH” or “SG” must be on the oil
container, either by itself or combined
with other quality designations, such
as “SH/CD,” “SH,SG,CD,”“SG/CD,”
etc. These letters show American
Petroleum Institute (API) levels of
quality.
SAE 5W-30
Energy Conserving I1
Oils with these words on the container
will help you save fuel.
These three things are usually included in
a doughnut shaped logo (symbol) on
most containers. If you cannot find
oils
with the “starburst” symbol, you should
look for oils with the doughnut shaped
symbol, containing the three things
noted above.
NOTICE:
If you use oils that do not have
either the “starburst” symbol or an
API
SH or SG designation, you can
cause engine damage not covered
by your warranty.
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.
When to Change Engine Oil
See if any one of these is true for you:
Most trips are less than 4 miles
(6 km)
.
It’s below freezing outside and most
trips are less than 10 miles (16 ltm).
The engine is at low speed most of the
time (as in door-to-door delivery, or in
stop-and-go traffic).
You tow a trailer often.
Most trips are through dusty places.
If any one of these is true for your
vehicle, then you need to change your
oil and filter every 3,000 miles (5 000
km) or 3 months - whichever comes
-first.
If none of them is true, change the oil
every
7,500 miles (12 500 lm) or 12
months -whichever comes first.
Change the filter at the first
oil change
and at every other oil change after that.
Engine Coolant Heater (Engine
Block Heater) (omoN)
An engine coolant heater can be a big
help if you have to
park outside in very