2021 MAZDA MODEL 3 HATCHBACK engine

Engine Compartment Overview
▼Engine Compartment Overview
SKYACTIV
-G 2.0 and SKYACTIV -G 2.5
1. Engine coolant reservoir
2. Engine oil dipstick
3. Brake/Clutch fluid reservoir
4. Battery
5. Fuse block
6. Cooling system cap
7. Engine oil-filler cap
8. Windshield washer fluid reservoir
Maintenance and Care
Owner Maintenance
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SKYACTIV-G 2.5T
1. Engine coolant reservoir
2. Engine oil dipstick
3. Brake fluid reservoir
4. Battery
5. Fuse block
6. Cooling system cap
7. Engine oil- filler cap
8. Windshield washer fluid reservoir
Maintenance and Care
Owner Maintenance
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Engine Oil
▼Engine Oil
NOTE
Changing the engine oil should be
performed by an Authorized Mazda
Dealer.
Refer to Introduction on page 6-2 for
owner's responsibility in protecting
your investment.
▼Recommended Oil
U.S.A., Canada
SKYACTIV
-G 2.0 and SKYACTIV -G
2.5
Use ILSAC GF -V or higher/ 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.

Only use SAE 0W -20 oil “Certi fied 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.

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.

Maintenance and Care
Owner Maintenance
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Only use SAE 5W-30 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.

Except U.S.A., 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.

(Mexico)
SKYACTIV -G 2.0 and SKYACTIV -G
2.5
Use API SM or higher, or ILSAC GF-IV
or higher/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.

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.

Maintenance and Care
Owner Maintenance
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▼Inspecting Engine Oil Level
NOTE
If the engine oil level warning
indication/warning light turns on,
add 1 L (0.26 US gal, 0.22 Imp gal)
of engine oil.
1. Be sure the vehicle is on a level surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it o ff 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.

1. MAX
2. OK
3. MIN

5. Pull it out again and examine thelevel.
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 over fill 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.
Maintenance and Care
Owner Maintenance
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Engine Coolant
▼Inspecting 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.
Pull over to a safe location, then
switch the ignition o ff 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 inde finitely 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 FULL and
LOW marks on the coolant reservoir
when the engine is cool.
SKYACTIV -G 2.0 and SKYACTIV -G
2.5

Maintenance and Care
Owner Maintenance
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SKYACTIV-G 2.5T

FULL
LOW
If it is at or near LOW, add enough
coolant to the coolant reservoir to
provide freezing and corrosion
protection and to bring the level to
FULL.
Securely tighten the coolant reservoir
tank cap after adding coolant.
CAUTION
 Radiator coolant will damage paint.
Rinse it o ff 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
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.
Maintenance and Care
Owner Maintenance
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Body Lubrication
▼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.
Wiper Blades
▼Wiper Blades
CAUTION

Hot waxes applied by automatic car
washers have been known to
aff ect
the wiper's ability to clean windows.
 To prevent damage to the wiper
blades, do not use gasoline,
kerosene, paint thinner, or other
solvents on or near them.
 When the wiper lever is in the AUTO
position and the ignition is switched
ON, the wipers may move
automatically in the following cases:
 If the windshield above the rain
sensor is touched.
 If the windshield above the rain
sensor is wiped with a cloth.
 If the windshield is struck with a
hand or other object.
 If the rain sensor is struck with a
hand or other object from inside
the vehicle.
Be careful not to pinch hands or fingers as it may cause injury, or
damage the wipers. When washing
or servicing the vehicle, make sure
the wiper lever is in the OFF
position.
Maintenance and Care
Owner Maintenance
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