MAZDA MODEL 6 2015 Owners Manual (in English)
Manufacturer: MAZDA, Model Year: 2015, Model line: MODEL 6, Model: MAZDA MODEL 6 2015Pages: 576
Page 411 of 576

Black plate (411,1)
WARNING
Do not perform maintenance work if you lack sufficient knowledge and experience or
the proper tools and equipment to do the work. Have maintenance work done by a
qualified technician:
Performing maintenance work on a vehicle is dangerous if not done properly. You
can be seriously injured while performing some maintenance procedures.
If you must run the engine while working under the hood, make certain that you
remove all jewelry (especially rings, bracelets, watches, and necklaces) and all
neckties, scarves, and similar loose clothing before getting near the engine or cooling
fan which may turn on unexpectedly:
Working under the hood with the engine running is dangerous. It becomes even
more dangerous when you wear jewelry or loose clothing.
Either can become entangled in moving parts and result in injury.
Switch the ignition to off and make sure the fan is not running before
attempting to work near the cooling fan:
Working near the cooling fan when it is running is dangerous. The fan could
continue running indefinitely even if the engine has stopped and the engine
compartment temperature is high. You could be hit by the fan and seriously injured.
Do not leave items in the engine compartment:
After you have finished checking or doing servicing in the engine compartment, do
not forget and leave items such as tools or rags in the engine compartment.
Tools or other items left in the engine compartment could cause engine damage or a
fire leading to an unexpected accident.
Maintenance and Care
Owner Maintenance
6-17
Mazda6_8DQ8-EA-13L_Edition3 Page411
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 412 of 576

Black plate (412,1)
Hood
WARNING
Always check that the hood is closed
and securely locked:
A hood that is not closed and
securely locked is dangerous as it
could fly open while the vehicle is
moving and block the driver's vision
which could result in a serious
accident.
qOpening the Hood
1. With the vehicle parked, pull the
release handle to unlock the hood.
Release handle
2. Insert your hand into the hood opening,
slide the latch lever to the right, and lift
up the hood.
Lever
NOTE
The lever is located a little to the left of center
when facing the vehicle.
3. Grasp the support rod in the padded
area and secure it in the support rod
hole indicated by the arrow to hold the
hood open.
Pad
Clip
Clip
Support rod
6-18
Maintenance and Care
Owner Maintenance
Mazda6_8DQ8-EA-13L_Edition3 Page412
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 413 of 576

Black plate (413,1)
qClosing the Hood
1. Check under the hood area to make
certain all filler caps are in place and
all loose items (e.g. tools, oil
containers, etc.) have been removed.
2. Lift the hood, grasp the padded area on
the support rod, and secure the support
rod in the clip. Verify that the support
rod is secured in the clip before closing
the hood.
ClipClip
Clip
3. Lower the hood slowly to a height of
about 20 cm (7.9 in) above its closed
position and then let it drop.
CAUTION
When closing the hood, do not push
it excessively such as by applying
your weight. Otherwise, the hood
could be deformed.
Maintenance and Care
Owner Maintenance
6-19
Mazda6_8DQ8-EA-13L_Edition3 Page413
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 414 of 576

Black plate (414,1)
Engine Compartment Overview
Windshield washer fluid reservoir Brake/Clutch fluid reservoir
Engine oil dipstickBattery Fuse block
Cooling system cap Engine coolant reservoir
Engine oil-filler cap
6-20
Maintenance and Care
Owner Maintenance
Mazda6_8DQ8-EA-13L_Edition3 Page414
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 415 of 576

Black plate (415,1)
Engine Oil
NOTE
Changing the engine oil should be performed
by an Authorized Mazda Dealer.
Refer to Introduction (page 6-2) for owner's
responsibility in protecting your investment.
qRecommended Oil
U.S.A. and CANADA
Use SAE 0W-20 engine oil.
Mazda Genuine Oil is used in your Mazda
vehicle. Mazda Genuine 0W-20 Oil is
required to achieve optimum fuel
economy.
For maintenance service, Mazda
recommends Mazda Genuine Parts and
Castrol
®(U.S.A. only).
(ILSAC)
Only use SAE 0W-20 oil
“Certified For Gasoline Engines”by the
American Petroleum Institute (API).
Oil with this trademark symbol conforms
to the current engine and emission system
protection standards and fuel economy
requirements of the International
Lubricant Standardization and Approval
Committee (ILSAC), comprised of U.S.
and Japanese automobile manufacturers.
80
60
40 20
0 –40 –20
30
120 100
50 40 20
10 0
–10 –20
–30 –40
Except U.S.A. and CANADA
Use SAE 5W-30 engine oil.
Oil container labels provide important
information.
A chief contribution this type of oil makes
to fuel economy is reducing the amount of
fuel necessary to overcome engine
friction.
For maintenance service, Mazda
recommends Mazda Genuine Parts and
Castrol
®(Mexico only).
Maintenance and Care
Owner Maintenance
6-21
Mazda6_8DQ8-EA-13L_Edition3 Page415
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 416 of 576

Black plate (416,1)
(ILSAC)
(Mexico)
Use SAE 5W-30 engine oil. If SAE 5W-
30 engine oil is not available, use SAE
5W-20 engine oil.
The quality designation SM, or ILSAC
must be on the label.
80
60
40 20
0 –40 –20
30
120 100
50 40 20
10 0
–10 –20
–30 –40
qInspecting Engine Oil Level
1. Be sure the vehicle is on a level
surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it off and wait at least 5 minutes
for the oil to return to the oil pan.4. Pull out the dipstick, wipe it clean, and
reinsert it fully.
Full
OK
Low
5. Pull it out again and examine the level.
The level is normal if it is between
Low and Full.
If it is near or below Low, add enough
oil to bring the level to Full.
CAUTION
Do not add engine oil over Full. This
may cause engine damage.
6. Make sure the O-ring on the dipstick is
positioned properly before reinserting
the dipstick.
7. Reinsert the dipstick fully.
6-22
Maintenance and Care
Owner Maintenance
Mazda6_8DQ8-EA-13L_Edition3 Page416
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 417 of 576

Black plate (417,1)
Engine Coolant
qInspecting Coolant Level
WARNING
Do not use a match or live flame in the
engine compartment. DO NOT ADD
COOLANT WHEN THE ENGINE IS HOT:
A hot engine is dangerous. If the
engine has been running, parts of the
engine compartment can become
very hot. You could be burned.
Carefully inspect the engine coolant
in the coolant reservoir, but do not
open it.
Switch the ignition to off and
make sure the fan is not running before
attempting to work near the cooling
fan:
Working near the cooling fan when it
is running is dangerous. The fan
could continue running indefinitely
even if the engine has stopped and
the engine compartment temperature
is high. You could be hit by the fan
and seriously injured.
Do not remove either cooling
system cap when the engine and
radiator are hot:
When the engine and radiator are
hot, scalding coolant and steam may
shoot out under pressure and cause
serious injury.
NOTE
Changing the coolant should be done by an
Authorized Mazda Dealer.
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 F and L marks
on the coolant reservoir when the engine
is cool.
If it is at or near L, add enough coolant to
the coolant reservoir to provide freezing
and corrosion protection and to bring the
level to F.
Securely tighten the coolant reservoir tank
cap after adding coolant.
CAUTION
ØRadiator coolant will damage
paint.
Rinse it off quickly if spilled.
Maintenance and Care
Owner Maintenance
6-23
Mazda6_8DQ8-EA-13L_Edition3 Page417
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 418 of 576

Black plate (418,1)
ØUse only soft (demineralized)
water in the coolant mixture.
Water that contains minerals will
cut down on the coolant's
effectiveness.
ØDo not add only water. Always
add a proper coolant mixture.
ØThe engine has aluminum parts
and must be protected by an
ethylene-glycol-based coolant to
prevent corrosion and freezing.
ØDO NOT USE coolants Containing
Alcohol, methanol, Borate or
Silicate.
These coolants could damage the
cooling system.
ØDO NOT MIX alcohol or methanol
with the coolant. This could
damage the cooling system.
ØDo not use a solution that
contains more than 60%
antifreeze.
This would reduce effectiveness.
ØIf the“FL22”mark is shown on or
near the cooling system cap, use of
FL-22 is recommended when
replacing engine coolant. Using
engine coolant other than FL-22
may cause serious damage to the
engine and cooling system.If the coolant reservoir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
6-24
Maintenance and Care
Owner Maintenance
Mazda6_8DQ8-EA-13L_Edition3 Page418
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 419 of 576

Black plate (419,1)
Brake/Clutch Fluid
qInspecting Brake/Clutch Fluid Level
WARNING
If the brake/clutch fluid level is low,
have the brakes inspected:
A low brake/clutch fluid level is
dangerous.
A low level could indicate brake
lining wear or a brake system leak
which could cause the brakes to fail
and lead to an accident.
The brakes and clutch draw fluid from the
same reservoir.
Inspect the fluid level in the reservoir
regularly. It should be kept between the
MAX and MIN lines.
The level normally drops with
accumulated distance, a condition
associated with wear of brake and clutch
linings. If it is excessively low, have the
brake/clutch system inspected by an
Authorized Mazda Dealer.
Washer Fluid
qInspecting Washer Fluid Level
WARNING
Use only windshield washer fluid or
plain water in the reservoir:
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.
Using Washer Fluid Without Anti-freeze
Protection in Cold Weather:
Operating your vehicle in
temperatures below 4 degrees C (40
degrees F) using washer fluid without
anti-freeze protection is dangerous
as it could cause impaired windshield
vision and result in an accident. In
cold weather, always use washer
fluid with anti-freeze protection.
NOTE
State or local regulations may restrict the use
of volatile organic compounds (VOCs), which
are commonly used as anti-freeze agents in
washer fluid. A washer fluid with limited VOC
content should be used only if it provides
adequate freeze resistance for all regions and
climates in which the vehicle will be operated.
Maintenance and Care
Owner Maintenance
6-25
Mazda6_8DQ8-EA-13L_Edition3 Page419
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L
Page 420 of 576

Black plate (420,1)
Inspect fluid level in the washer fluid
reservoir; add fluid if necessary.
L
Use plain water if washer fluid is
unavailable.
But use only washer fluid in cold weather
to prevent it from freezing.
Body Lubrication
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 hood's secondary latch
keeps the hood from opening when the
primary latch is released.
6-26
Maintenance and Care
Owner Maintenance
Mazda6_8DQ8-EA-13L_Edition3 Page420
Friday, June 13 2014 6:23 PM
Form No.8DQ8-EA-13L