Page 269 of 390
3.1L V6 Engine
1. Engine Coolant Reservoir
2. Power Steering Fluid Reservoir
3. Air Cleaner
4. Brake Fluid Reservoir
5. Windshield Washer Fluid Reservoir
6. Battery
7. Automatic Transaxle Fluid Dipstick
8. Engine Oil Dipstick
9. Engine Oil Fill Cap
IO. Radiator Cap
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P
3800 V6 Engine
1. Engine Coolant Reservoir 6. Battery
2. Power Steering Fluid Reservoir 7. Air Cleaner
3. Automatic Transaxle Fluid Dipstick 8. Engine Oil Dipstick
4. Brake Fluid Reservoir 9. Engine Oil Fill Cap
5. Windshield Washer Fluid Reservoir 10. Radiator Cap
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Page 282 of 390

Engine Coolant
The following explains your cooling system and how to
add coolant when it is low.
If you have a problem with
engine overheating, see “Engine Overheating”
in the
Index.
The proper coolant for your Oldsmobile
will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 262 OF ( 128 ” C).
Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights work as they should.
What to Use
Use a mixture of one-half clean water (preferably
distilled)
and one-half antifreeze that meets “GM
Specification
1825M,” which won’t damage aluminum
parts. You can also use a recycled coolant conforming to
GM Specification 1825M with a complete coolant flush
and refill. Use GM Engine Coolant Supplement (sealer)
with any complete coolant flush and refill.
If you use
this mixture,
you don’t need to add anything else.
NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged.
The
repair cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
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To Add Coolant
If you need more coolant, add the proper mix at the
cnolclnt recoverv tank.
Add coolant mix at the recovery tank, but be careful not
to spill it.
Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the cap
line up with the overflow tube on the radiator
filler neck.
When you replace your radiator pressure cap, an AC@
cap is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches
a preset temperature.
When you replace your thermostat, an
AC@ thermostat
is recommended.
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Page 287 of 390

NOTICE:
0
0
0
0
When using concentrated washer fluid,
follow the manufacturer’s instructions for
adding water.
Don’t mix water with ready-to-use washer
fluid. Water can cause the solution to freeze
and damage your washer fluid tank and other parts of the washer system. Also,
water doesn’t clean as well as washer fluid.
Fill your washer fluid tank only
3/4 full
when it’s
very cold. This allows for
expansion, which could damage the tank if
it is completely full.
Don’t use radiator antifreeze in your
windshield washer. It
can damage your
washer system and paint.
Brakes
Brake Master Cylinder
Your brake master cylinder is here. It is filled with
DOT-3 brake fluid.
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
nortnal 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
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Page 333 of 390
Maintenance Schedule I
30,000 Miles (50 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
0 Lubricate the suspension and steering
An Emission Control Service.
linkage, transaxle shift linkage, parking
brake cable guides and underbody contact
points and linkage (or every
6 months,
whichever occurs first).
0 Drain, flush and refill cooling system (or
every
24 months, whichever occurs first).
See “Engine Coolant’’ in the Index for what
to use. Inspect
hoses. Clean radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.
An Elnissiou Control Service.
0 Replace spark plugs. An Emission Control
0 Replace air cleaner filter. Replace filter
Service.
more often under dusty conditions.
An Emission Control Sen)ice.
17 Rotate tires. See “Tire inspection and
Rotation” in the Index for proper rotation
pattern and additional information.
I DATE I ACTUAL MILEAGE SERVICED BY: I
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Maintenance Schedule I
60,000 Miles (100 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Contrd Service.
0 Lubricate the suspension and steering
linkage, transaxle shift linkage, parking
brake cable guides and underbody contact
points and linkage
(or every 6 months,
whichever occurs first).
0 Inspect engine accessory drive belt.
0 Drain, flush and refill cooling system (or
every
24 months, whichever occurs first).
See “Engine Coolant”
in the Index for what
to use. Inspect hoses. Clean
radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.
AH
Emission Control Service.
0 Replace spark plugs. An Emission Corltro1Servic.e.
0 Inspect spark plug wires. AI? Emissiolz
Contlvl Service. -t-
0 Replace air cleaner filter. Replace filter
more often under dusty conditions.
An Emission Control Senrice.
0 Inspect fuel tank, cap and lines for damage
or leaks. Inspect
fuel cap gasket for any
damage. Replace parts as needed (or every
60 months). A11 Emis,vioz~ Com-ol Serr?c-e.’I
Cl Inspect Exhaust Gas Recirculation (EGR)
system (or every 60 months) (3.1L Code D
engine only). AI? E111issio1z Corzml Scn!ic.c. -1
0 Engine Timing and Distributor Check or
every 60 months) (3.1 L Code D engine only j.
DATE SERVICED BY: ACTUAL MILEAGE
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I Maintenance Schedule I 1
87,000 Miles (145 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
I DATE I ACTUAL MILEAGE ISERVICED BY:^
90,000 Miles (150 000 km)
0 Change engine oil and filter (or every
3 months, whichever OCCUTS first).
An Emission Control Service.
0 Lubricate the suspension and steering
linkage, transaxle shift linkage, parking
brake cable guides and underbody contact
points and linkage (or every
6 months,
whichever occurs first).
0 Drain, flush and refill cooling system (or
every
24 months, whichever occurs first).
See “Engine Coolant” in the Index for what
to use. Inspect hoses. Clean radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap:
An Emission Control Service.
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