2002 MAZDA MODEL MILLENIA radiator

4-8
Before Driving Your Mazda
Driving Tips
Form No. 8Q47-EA-01F
•Carry emergency gear, including tire
chains, window scraper, flares, a small
shovel, jumper cables, and a small bag
of sand or salt.
Ask a Mazda dealer to perform the
following precautions:
•Have the proper ratio of antifreeze in
the radiator.
•Inspect the battery and its cables. Cold
reduces battery capacity.
•Use only cold-weather engine oil (page
8-10).
•Inspect the ignition system for damage
and loose connections.
•Use washer fluid made with
antifreeze—but don’t use engine
coolant antifreeze for washer fluid
(page 8-19).
•Don’t use the parking brake in freezing
weather as the parking brake may
freeze. Instead, shift to P and block the
rear wheels.

Snow Tires
l
Your vehicle is originally equipped with
all season radials designed to be used all
year around. In some extreme climates
you may find it necessary to replace them
with snow tires during the winter months
to further improve traction on snow and
ice covered roads.
Use snow tires on all four wheels
Don’t go faster than 120 km/h (75 mph).
Inflate snow tires 28 kPa (0.3 kgf/cm2, 4
psi) more than recommended on the tire
pressure label (driver’s door), but never
more than the maximum cold-tire
pressure shown on the tires.
Winter Driving
Mixing Tire Types:
Using tires different in size or type is
dangerous. Your vehicle’s handling
could be greatly affected and result in
an accident. Use only the same size
and type tires (snow, radial, or non-
radial) on all four wheels.
Check local regulations before using
studded tires.
WARNING
CAUTION
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7-10
In Case of an Emergency
Form No. 8Q47-EA-01F
Overheating
If the temperature gauge indicates
overheating, you experience power loss,
or you hear a loud knocking or pinging
noise, the engine is probably too hot.
If this happens:
1. Drive safely to the side of the road and
park off the right-of-way.
2. Shift into park (P) .
Apply the parking brake.
3. Turn off the air conditioner.
4. Check whether coolant or steam is
escaping from under the hood or from
the engine compartment.
If steam is coming from the engine
compartment:
Don’t go near the front of the vehicle.
Stop the engine. Then turn the ignition
switch to the ON position without
starting the engine.
The radiator cooling fans will start to
cool the engine.
If neither coolant nor steam is
escaping:
Open the hood and idle the engine until
it cools. If this doesn’t lower the
temperature, stop the engine and let it
cool.5. Check the coolant level.
If it’s low, look for leaks in the radiator
hoses and connections, heater hoses
and connections, radiator, and water
pump.
If you find a leak or other damage, or if
coolant is still leaking, stop the engine
and call an Authorized Mazda Dealer.
If you find no problems, the engine is
cool, and no leaks are obvious, carefully
add coolant as required (page 8-12).
Overheating
Steam from Overheated Engine:
Steam from an overheated engine is
dangerous. The escaping steam could
seriously burn you. Open the hood
ONLY after steam is no longer
escaping from the engine.
WARNING
Coolant filler cap
2.5 liter V6 DOHC
Engine coolant
reservoir
Coolant system cap
Miller Cycle Engine V6 DOHC
Engine coolant
reservoir
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7-11
In Case of an Emergency
Overheating
Form No. 8Q47-EA-01F
Cooling System Caps:
When the engine and radiator are
hot, scalding coolant and steam may
shoot out under pressure and cause
serious injury. Don’t remove either
cooling system cap when the engine
and radiator are hot.
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made.
WARNING
CAUTION
J76Y.book Page 11 Wednesday, March 27, 2002 5:04 PM

8-12
Maintenance and Care
Owner Maintenance
Form No. 8Q47-EA-01F
3. Replace the plug tightly after the oil
has thoroughly drained.
4. Fill the engine with new oil to the F
mark on the dipstick.
5. Securely replace the oil-filler cap.
6. Start the engine and inspect around the
drain plug for leaks.
7. Turn it off and wait 5 minutes for the
oil to return to the oil pan.
Check the oil level and fill to the F mark if
necessary.
Oil capacity (General reference only,
refer to Specifications section for
capacities.)
Changing oil filter
Because you need a special tool to
retighten the filter, an Authorized Mazda
Dealer should do the work.

Inspecting Coolant Level
Inspect the antifreeze protection and
coolant level in the coolant reservoir at
least once a year—at the beginning of the
winter season—and before traveling
where temperatures may drop below
freezing.
Inspect the condition and connections of
all cooling system and heater hoses.
Replace any that are swollen or
deteriorated.
The coolant should be at full in the
radiator and between the FULL and LOW
marks on the coolant reservoir when the
engine is cool.
NOTE
•The indicated engine oil capacities
are for general reference purposes
only. When adding or changing oil,
verify the engine oil level with the
oil dipstick.
•Use only specified engine oil (page
10-4).
Engine Coolant
Hot Engine:
A hot engine is dangerous. If the
engine has been running, parts of the
engine compartment can become very
hot. You could be burned. Don’t
inspect the coolant system or add
coolant when the engine is hot.
WARNING
J76Y.book Page 12 Wednesday, March 27, 2002 5:04 PM

8-13
Maintenance and Care
Owner Maintenance
Form No. 8Q47-EA-01F
If it’s at or near LOW, add enough coolant
to the coolant reservoir to provide
freezing and corrosion protection and to
bring the level to FULL.
Do not overfill.
If new coolant is required frequently,
consult an Authorized Mazda Dealer.

Changing Coolant
Change coolant according to Scheduled
Maintenance (page 8-3).For mixture percentage:
To change coolant
Radiator coolant will damage paint.
Rinse it off quickly.
•Use only soft (demineralized) water
in the coolant mixture. Water that
contains minerals will cut down on
the coolant’s effectiveness.
•Don’t add only water. Always add a
proper coolant mixture.
•The engine has aluminum parts and
must be protected by an ethylene-
glycol-based coolant to prevent
corrosion and freezing.
•DO NOT USE alcohol or methanol
antifreeze. DO NOT MIX alcohol
or methanol with the coolant. This
could damage the cooling system.
•Don’t use a solution that contains
more than 60 % antifreeze.
This would reduce effectiveness.
CAUTION
CAUTION
ProtectionVo l u m e
Antifreeze
solutionWa t e r
Above −
16°C (3°F) 35% 65%
Above −
26°C (−
15°F) 45 55
Above −
40°C (−
40°F) 55 45
Removing the Cooling System Cap:
Removing the cooling system cap or
drain plug while the engine is
running or hot is dangerous. This
might lead to cooling system and
engine damage and could result in
serious injury from escaping hot
coolant or steam. Turn off the engine
and wait until it’s cool. Even then, be
very careful when removing the cap
or drain plug. Wrap a thick cloth
around it and slowly turn it
counterclockwise to the first stop.
Step back while the pressure escapes.
When you’re sure all the pressure is
gone, press down on the cap — still
using a cloth — turn the cap, and
remove it.
WARNING
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8-14
Maintenance and Care
Owner Maintenance
Form No. 8Q47-EA-01F
2.5 liter V6 DOHC
1. Remove the coolant filler cap.
2. Only when the engine is cool, remove
the radiator drain plug and drain the
coolant into a suitable container.
3. Flush out the system with running
water.
4. Drain the system completely. Insert
and tighten the plug.
5. Fill the system (to the top of the filler
neck) and then the coolant reservoir (to
F) with as much ethylene-glycol-based
coolant and water as necessary to
provide protection from freezing and
corrosion.
In extremely cold climates, add the
amount recommended by the coolant
manufacturer.
6. Reinstall the coolant filler cap.
7. Run the engine at idle for about 10
minutes, then turn it off. If the coolant
level warning light comes on during
this time, turn the engine off.
After turning off the engine, inspect the
drain plug and the water hoses for
leaks.8. After the engine has cooled, remove
the coolant filler cap and inspect the
coolant level. If it’s low, repeat steps 5
to 7.
Because this procedure requires technical
expertise, we recommend that it be done
by an Authorized Mazda Dealer.
Miller Cycle Engine V6 DOHC
1. Remove the cooling system cap.
2. Only when the engine is cool, remove
the radiator drain plug and drain the
coolant into a suitable container.
3. Flush out the system with running
water.
4. Drain the system completely. Insert
and tighten the plug. Add as much
ethylene-glycol-based coolant and
water as necessary to provide freezing
and corrosion protection.
5. In extremely cold climates, add the
amount recommended in the coolant
manufacturer’s instructions.
6. Run the engine at idle with the cooling
system cap off. Slowly add additional
coolant if necessary.
Tighten
Loosen Tighten
Loosen
TightenLoosen Coolant filler cap
Engine coolant
reservoir
Loosen
Tighten Tighten
Loosen
Cooling system cap
J76Y.book Page 14 Wednesday, March 27, 2002 5:04 PM

8-19
Maintenance and Care
Owner Maintenance
Form No. 8Q47-EA-01F

Inspecting Washer Fluid Level
Inspect fluid level in the washer fluid
reservoir; add fluid if necessary.
Use plain water if washer fluid is
unavailable.
But use only washer fluid in cold weather
to prevent it from freezing.All moving points of the body, such as
door and hood hinges and locks, should
be lubricated each time the engine oil is
changed. Use a nonfreezing lubricant on
locks during cold weather.
Make sure the engine hood’s secondary
latch keeps the hood from opening when
the primary latch is released.
Wa s h e r F l u i d
Substitute Washer Fluid:
Using radiator antifreeze as washer
fluid is dangerous. If sprayed on the
windshield, it will dirty the
windshield, affect your visibility, and
could result in an accident. Use only
windshield washer fluid or plain
water in the reservoir.
WARNING
Float
Body Lubrication
J76Y.book Page 19 Wednesday, March 27, 2002 5:04 PM