MAZDA MODEL 6 2020 Owner's Manual (in English)

0W-30 at the next oil change to maintain
optimum performance.

For maintenance service, Mazda
recommends Mazda Genuine Part.

80
60
40
20
0
–40 –20
30
100
40
20
10
0
–10
–20
–30
–40
CAUTION
SKYACTIV-D 2.2 uses
specified oil. Please
confirm the specification in owner's
manual. If engine oil other than the
specified oil is used, the Diesel Particulate
Filter effective period of use will be
shortened or the Diesel Particulate Filter
may be damaged.
NOTE
Whenever the engine oil is replaced, the
vehicles engine control unit needs to be
reset as soon as possible. Otherwise, the
engine oil warning light or the wrench
indicator light may di splay at the wrong
timing.
Refer to Maintenance Monitor on page
6-16.
Except U.S.A., Canada
Use SAE 5W-30 engine oil.
Oil container labels provide important
information.
A chief contribution th is 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).


(ILSAC)
(Mexico)
80
60
40
20
0
–40 –20
30
100
40
20
10
0
–10
–20
–30
–40
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Owner Maintenance
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SKYACTIV-G 2.5
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 SN, or
ILSAC must be on the label.

SKYACTIV-G 2.5T
Use SAE 5W-30 engine oil. If SAE 5W-30
engine oil is not available, use SAE 0W-30
or SAE 10W-30 engine oil.

The quality designation SM or SN, or
ILSAC must be on the label.
▼Inspecting 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 retur n to the oil pan.
4. Pull out the dipstic k, wipe it clean, and
reinsert it fully.
SKYACTIV-G 2.5 and
SKYACTIV-G 2.5T

MAX
OK
MIN
SKYACTIV-D 2.2

MIN OK
MAX
X Mark
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NOTE
(SKYACTIV-D 2.2)
When inspecting the engine oil level,
pull out the dipstick straight without
twisting. In addition, when inserting
the dipstick, always insert it without
twisting so that the “X” mark faces the
front of the vehicle.
5. Pull it out again and examine the level. The level is normal if it is between the
MIN and MAX marks.
If it is near or below MIN, add enough
oil to bring the level to MAX.
CAUTION
Do not overfill the engine oil. 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.
NOTE
(SKYACTIV-D 2.2)
Inspect the engine oil level
periodically. When inspecting the
engine oil, if the engine oil level is
exceeds the “X” mark on the dipstick,
replace the engine oil. This should be
done by an Authorized Mazda Dealer.
When replacing the engine oil, inspect
the oil level using the oil dipstick and
refill so that the engine oil level is
within the rang e between MIN and
MAX as shown in the figure.
X Mark
MAX
MIN
Engine Coolant
▼ Inspecting Coolant Level
WA R N I N G
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.
Pull over to a safe location, then switch
the ignition 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.
Maintenance and Care
Owner Maintenance
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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.
SKYACTIV-G 2.5

SKYACTIV-G 2.5T

SKYACTIV-D 2.2

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 c oolant reservoir tank
cap after adding coolant.
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Owner Maintenance
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CAUTION
Radiator coolant will damage paint.
Rinse it off quickly if spilled.
 If 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.
Brake/Clutch Fluid
▼ Inspecting Brake/Clutch Fluid Level
WA R N I N G
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 norm ally 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.
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Owner Maintenance
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Washer Fluid
▼Inspecting Washer Fluid Level
WA R N I N G
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 °C (40 °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.
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.
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Owner Maintenance
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Diesel Exhaust Fluid
(DEF) (SKYACTIV-D 2.2)
Diesel Exhaust Fluid (DEF) Handling
CAUTION
 If DEF gets in your mouth, wash your
mouth with a large amount of water
immediately and seek medical attention.
If DEF is mistakenly swallowed, drink 1 to
2 cups of water immediately and seek
medical attention.
 If DEF gets in your eyes, rinse them with
running water immediately and seek
medical attention.
 Do not use DEF when 2 years have
elapsed from the production date
indicated on the container or the use
period has expired. If DEF with an expired
use period is used, the Selective Catalytic
Reduction (SCR) System may not operate
normally.
 Do not store DEF in the vehicle. DEF may
deteriorate or the interior may be
damaged due to fluid leakage from the
container.
 If DEF gets on the painted surface or the
interior, wash it off with water or wipe it
off with a wet cloth immediately.
Otherwise, it may damage the painted
surface or the interior.
 If DEF crystals form on the painted
surface or the interior, wipe them
off with
a wet cloth. Otherwise, it may damage
the painted surface or the interior.
 Store DEF in a place out of the reach of
children.
Do not put DEF into a
different container.
There may be foreign matter in the
container. If DEF containing foreign
matter is used, it could cause a problem
with the SCR system. In addition,
changing containers is dangerous
because it increases the risk of accidental
ingestion.
NOTE
DEF is a colorless, transparent,
odorless, and nonpoisonous solution
(urea: 32.5 %, aqueous solution
(AUS32)).
Store DEF in a cool, dark place.
DEF freezes at –11 °C (12 °F), however,
when the temperature increases, the
DEF returns to its original condition.
When opening the container, there may
be a smell of ammonia. Open the
container in a well-ventilated area.
If DEF gets on your hands, wash them
with running water immediately.
▼ Diesel Exhaust Fluid (DEF)
Replenishment
CAUTION

Use a Mazda genuine product or a
product conforming to ISO22241-1 for
DEF. If incompatible DEF is used, the
Selective Catalytic Reduction (SCR)
system may not operate normally. For
the recommended DEF, consult the
nearest Authorized Mazda Dealer.
 Do not dilute DEF with water. If diluted
DEF is used, it could cause a problem
with the SCR system or damage it.
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Owner Maintenance
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Do not add any
fluid other than DEF to
the urea tank. If any fluid other than DEF
is added, it could cause a problem with
the SCR system or damage it. Do not
switch the ignition ON, and contact an
Authorized Mazda Dealer.
 When adding DEF, use a bottle with an
anti-spill nozzle. If a bottle without an
anti-spill nozzle or a commercial
dispenser at a gas station is used, it could
cause leakage or the DEF to spray out.
 Do not
overfill the DEF. If DEF is added
unnecessarily, it could cause a problem
with the urea tank or damage it. Always
use a bottle with an auto-stop function
and stop adding fluid when the
auto-stop function operates.
NOTE
When adding DEF during low
temperatures (–11 ˚C (12 ˚F) or less),
move the vehicle to a warm location. If
the DEF starts to freeze, it may not flow
correctly and the correct amount may
not have been added. In addition, if the
fluid freezes in the urea tank, you may
not be able to tell if the correct amount
of fluid was added.
Replenishment of DEF by an Authorized
Mazda Dealer is recommended. If you
want to replenish the DEF yourself,
follow the replenishment procedure
below.

Replenishment Procedure
1. Check the remaining amount of Diesel Exhaust Fluid (DEF) on the
multi-information display.
(Instrument cluster (Type A))
Refer to Remaining Diesel Exhaust
Fluid (DEF) and Maximum Driving
Distance Display (SKYACTIV-D 2.2)
on page 4-23.
(Instrument cluster (Type B))
Refer to Remaining Diesel Exhaust
Fluid (DEF) and Maximum Driving
Distance Display (SKYACTIV-D 2.2)
on page 4-40.
5.7 L (1.5 US gal, 1.3 Imp gal) of DEF
or more needs to be added.
NOTE
The replenishment amount (reference)
according to the DEF level (%)
indication is as follows:
Percentage (%) indica ‐
tion for remaining amount Reference replenish‐
ment amount
*1
100 — 65 Replenishment unneces‐
sary
60 — 45 About 5.7 L (1.5 US gal,
1.3 Imp gal)
40 — 25 About 7.6 L (2.0 US gal,
1.7 Imp gal)
20 — 0 About 9.5 L (2.5 US gal,
2.1 Imp gal)
*1 Even if DEF is added at the
indicated replenishment amount,
100 % may not be indicated on the
display.

2. Stop the vehicle on level ground.
3. Switch the ignition OFF.
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4. Open the trunk lid and remove thetrunk mat.
Trunk mat
5. Remove the cargo sub-compartment.
Cargo sub-compartment
6. Open the cover.
Cover
7. Open the cap of the DEF filler port.
Open
Close
8. Remove the cap of a bottle containingDEF, insert the bottle into the DEF
filler port, and screw it in lightly until
it stops.

CAUTION
If too much DEF is added, the SCR
system might display a warning.
Contact an Authorized Mazda Dealer if
a warning is displayed. If the warning
remains displayed, the urea tank may
have a problem or it may be damaged.
Maintenance and Care
Owner Maintenance
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NOTE
If excessive force is applied when
pressing in the bottom of the bottle,
the bottle or the DEF filler port may
be damaged.
When the urea tank is full, stop
adding DEF because the flow from
the bottle slows down by the bottle's
auto-stop function. If you continue
adding DEF, the urea tank will
overfill.
9. Press in the bot tom of the bottle
straight and add DEF.

Push to add
Release to stop
10. Remove the bottle in the reverse order
of the insertion. At th is time, be careful
of DEF dripping from the bottle.
11. Tighten the cap o f the DEF filler port
until you hear 2 or more click sounds.
12. Close the cover securely.
Cover
NOTE
If the cover is not closed securely,
water or exhaust gas from the
service hole may penetrate the trunk.
13. Switch the ignition ON once.
14. Check the following while the vehicle
is stopped.
The DEF level warning indication is
not displayed on the
multi-information display.
The DEF level (%) indication on the
multi-information display shows an
increase.
(Instrument cluster (Type A))
Refer to Remaining Diesel Exhaust
Fluid (DEF) and Maximum Driving
Distance Display (SKYACTIV-D
2.2) on page 4-23.
(Instrument cluster (Type B))
Refer to Remaining Diesel Exhaust
Fluid (DEF) and Maximum Driving
Distance Display (SKYACTIV-D
2.2) on page 4-40.
15. Switch the ignition OFF.
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