2021 MAZDA MODEL 6 service

Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle inspections at the
indicated intervals to ensure safe and dependable operation.

Bring any problem to the attention of an Authorized Mazda Deale r or qualified service
technician as soon as possible.
When Refueling
Brake fluid level (page 6-28)
Engine coolant level (page 6-26)
Engine oil level (page 6-25)
Washer fluid level (page 6-29)
At Least Monthly
Tire inflation pressures (page 6-44)
At Least Twice a Year (For Example, Every Spring and Fall)
You can do the following schedu led maintenance items if you hav e some mechanical ability
and a few basic tools and if you closely follow the directions in this manual.
Engine coolant (page 6-26)
Engine oil (page 6-22)

Improper or incomplete service may result in problems. This sec tion gives instructions only
for items that are easy to perform.

As explained in the Introduction (page 6-2), several procedures can be done only by a
qualified service technician with special tools.

Improper owner maintenance during the warranty period may affec t warranty coverage.
Refer to Introduction (page 6-2) for owner's responsibility in protecting your investment.
For details, read the separate Mazda Warranty statement provide d with the vehicle. If you
are unsure about any servicing or maintenance procedure, have i t done by an Authorized
Mazda Dealer.

There are strict environmental laws regarding the disposal of w aste oil and fluids. Please
dispose of your waste properly and with due regard to the envir onment.

We recommend that you entrust the oil and fluid changes of your vehicle to an Authorized
Mazda Dealer.
Maintenance and Care
Owner Maintenance
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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.
▼Recommended Oil
U.S.A., Canada
SKYACTIV-G 2.5
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
Oil.

(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), c
omprised of U.S.
and Japanese automobile manufacturers.

80
60
40
20
0
–40 –20
30
100
40
20
10
0
–10
–20
–30
–40
Maintenance and Care
Owner Maintenance
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SKYACTIV-G 2.5T
Use SAE 5W-30 engine oil.
Mazda Genuine Oil is used in your Mazda
vehicle. Mazda Genuine 5W-30 Oil is
required to achieve optimum fuel
economy.

For maintenance service, Mazda
recommends Mazda Genuine Parts and
Oil.

(ILSAC)
Only use SAE 5W-30 oil “Certified For
Gasoline Engines” by the American
Petroleum Institute (API).
Oil with this tradem ark 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
100
40
20
10
0
–10
–20
–30
–40
SKYACTIV-D 2.2
Mazda Genuine Oil is used in your Mazda
vehicle and is the recommended SAE
0W-30 lubricant. Mazda Genuine
SKYACTIV-D SAE 0W-30 Diesel Engine
Oil is required to achieve optimum fuel
economy and durability for the Diesel
Particulate Filter. If Mazda Genuine
SKYACTIV-D SAE 0W-30 Diesel Engine
Oil is not available, an alternative oil
specified below may be used for oil level
maintenance and oil changes however, it is
strongly recommended to replace the
alternative oil with Mazda Genuine
SKYACTIV-D SAE 0W-30 Diesel Engine
Oil at the next oil change to maintain
optimum performance.

Maintenance and Care
Owner Maintenance
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Recommended oil: Mazda Genuine
SKYACTIV-D SAE 0W-30 Diesel
Engine Oil
Alternative oil: ACEA C3 and SAE
0W-30 or 5W-30

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 display at the wrong
timing.
Refer to the Information section in the
Mazda Connect Owner's Manual for the
details.
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.

(ILSAC)
(Mexico)
80
60
40
20
0
–40 –20
30
100
40
20
10
0
–10
–20
–30
–40
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 bottom 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 this time, be careful
of DEF dripping from the bottle.
11. Tighten the cap of 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-informat ion 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 4-41.
15. Switch the ignition OFF.
Maintenance and Care
Owner Maintenance
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▼Battery Maintenance
To get the best service from a battery:
Keep it securely mounted.
Keep the top clean and dry.
Keep terminals and connections clean,
tight, and coated with
petroleum jelly or
terminal grease.
Rinse off spilled electrolyte immediately
with a solution of water and baking
soda.
If the vehicle will not be used for an
extended time, disconnect the battery
cables and charge the battery every 6
weeks.
▼ Battery Replacement
Contact an Authorized Mazda Dealer for
battery replacement.
Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not flash, the battery may be
dead.
Replace with a new b
attery before the
transmitter becomes unusable.
CAUTION
 Make sure the battery is installed
correctly. Battery leakage could occur if it
is not installed correctly.
 When replacing the battery, be careful
not to touch any of the internal circuitry
and electrical terminals, bend the
electrical terminals, or get dirt in the
transmitter as the transmitter could be
damaged.
 There is the danger of explosion if the
battery is not correctly replaced.
 Dispose of used batteries according to
the following instructions.
 Insulate the plus and minus terminals
of the battery using cellophane or
equivalent tape.
 Never disassemble.
 Never throw the battery into
fire or
water.
 Never deform or crush.
 Replace only with the same type battery
(CR2032 or equivalent).
Maintenance and Care
Owner Maintenance
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Jump-Starting
Jump-starting is dangerous if done incorrectly. So follow the procedure carefully. If you feel
unsure about jump-starting, we strongly recommend that you have a competent service
technician do the work.
WARNING
Follow These Precautions Carefully:
To ensure safe and correct handling of the ba ttery, read the following precautions carefully
before using the battery or inspecting it.
Keep flames and sparks away from open battery cells and do not allow metal tools to
contact the positive (
) or negative () terminal of the battery when working near a battery.
Do not allow the positive (
) terminal to contact the vehicle body:
Flames and sparks near open battery cells are dangerous. Hydrogen gas, produced during
normal battery operation, could ignite and cause the battery to explode. An exploding battery
can cause serious burns and injuries. Keep al l flames including cigarettes and sparks away
from open battery cells.
Keep all flames and sparks away from open battery cells because hydrogen gas is
produced from open battery cells while char ging the battery or adding battery fluid:
Flames and sparks near open battery cells are dangerous. Hydrogen gas, produced during
normal battery operation, could ignite and cause the battery to explode. An exploding battery
can cause serious burns and injuries. Keep al l flames including cigarettes and sparks away
from open battery cells.
Do not jump-start a frozen battery or one with a low fluid level:
Jump-starting a frozen battery or one with a low fluid level is dangerous. It may rupture or
explode, causing serious injury.
Connect the negative cable to a good ground point away from the battery:
Connecting the end of the second jumper cable to the negative (
) terminal of the discharged
battery is dangerous.
A spark could cause the gas around the battery to explode and injure someone.
If Trouble Arises
Battery Runs Out
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Towing Description
We recommend that towing be done only
by an Authorized Mazda Dealer or a
commercial tow-truck service.

Proper lifting and towing are necessary to
prevent damage to the vehicle. Particularly
when towing an AWD vehicle, where all
the wheels are connected to the drive train,
proper transporting of the vehicle is
absolutely essential to avoid damaging the
drive system. Government and local laws
must be followed.
Wheel dollies

A towed FWD vehicle should have its
drive wheels (front wheels) off the ground.
If excessive damage or other conditions
prevent this, use wheel dollies.

When towing a FWD vehicle with the rear
wheels on the ground, release the parking
brake.
Refer to Electric Parking Brake (EPB) on
page 4-101.

A towed AWD vehicle must have all its
wheels off the ground.
WA R N I N G
Always tow an AWD vehicle with all four
wheels off the ground:
Towing an AWD vehicle with either the
front or rear wheels on the ground is
dangerous as the drive train could be
damaged, or the vehicle could trail away
from the tow truck and cause an accident.
If the drive train has been damaged,
transport the vehicle on a flatbed truck.
CAUTION
 Do not tow the vehicle pointed backward
with driving wheels on the ground. This
may cause internal damage to the
transaxle.
If Trouble Arises
Emergency Towing
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