Page 391 of 508

Black plate (391,1)
The quality designation SM, or ILSAC
must be on the label.
5W-20
120 100 80
60 40
20
0 –20
50 40 30
20 10
0 –10
–20 –30
Use SAE 5W-30 engine oil (2.3-liter
turbocharged engine).
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.
Mazda recommends Mazda Genuine Parts
and Castrol (U.S.A and Mexico). For
optimal engine performance, there are
certain types of engine oils and filters
suitable for your vehicle. Please consult
an Authorized Mazda Dealer.
U.S.A. and CANADA
(ILSAC)
Only use oils“Certified For Gasoline
Engines”by the American Petroleum
Institute (API). An 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.
–30 –20 –10 0 10 20 30 40 50
–20 0 20 40 60 80 100 120
5W-30
Except U.S.A. and CANADA
(ILSAC)
Maintenance and Care
Owner Maintenance
8-19
Mazda3_8BM5-EA-10F_Edition2 Page391
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Form No.8BM5-EA-10F
Page 392 of 508

Black plate (392,1)
The quality designation SM, or ILSAC
must be on the label.
–30 –20 –10 0 10 20 30 40 50
–20 0 20 40 60 80 100 120
5W-30
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.
2.0-liter and 2.5-liter engine
Full
OK
Low
Type A
Type B
Full
OK
Low
2.3-liter turbocharged engine
Max
Min OK
5. Pull it out again and examine the level.
The level is normal if it is between
Low or MIN and Full or MAX.
If it is near or below Low or MIN, add
enough oil to bring the level to Full or
MAX.
CAUTION
Do not add engine oil over Full or
MAX. This may cause engine
damage.
6. Make sure the O-ring on the dipstick is
positioned properly before reinserting
the dipstick.
8-20
Maintenance and Care
Owner Maintenance
Mazda3_8BM5-EA-10F_Edition2 Page392
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Form No.8BM5-EA-10F
Page 435 of 508

Black plate (435,1)
Pay special attention to removing salt,
dirt, mud, and other foreign material from
the underside of the fenders, and make
sure the drain holes in the lower edges of
the doors and rocker panels are clean.
Insects, tar, tree sap, bird droppings,
industrial fallout, and similar deposits can
damage the finish if not removed
immediately. When prompt washing with
plain water is ineffective, use a mild soap
made for use on vehicles.
Thoroughly rinse off all soap with
lukewarm or cold water. Do not allow
soap to dry on the finish.
After washing the vehicle, dry it with a
clean chamois to prevent water spots from
forming.
WARNING
Dry off brakes that have become wet
by driving slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the brake
performance returns to normal:
Driving with wet brakes is
dangerous. Increased stopping
distance or the vehicle pulling to one
side when braking could result in a
serious accident. Light braking will
indicate whether the brakes have
been affected.When using a high water pressure car
wash
High water temperature and high water
pressure car washers are available
depending on the type of car wash
machine. If the car washer nozzle is put
too close to the vehicle, the force of the
spray could damage or deform the
molding, affect the sealability of parts,
and allow water to penetrate the interior.
Keep a sufficient space (30 cm or more)
between the nozzle and the vehicle. In
addition, do not spend too much time
spraying the same area of the vehicle, and
be very careful when spraying between
gaps in doors and around windows.
Waxing
Your vehicle needs to be waxed when
water no longer beads on the finish.
Always wash and dry the vehicle before
waxing it. In addition to the vehicle body,
wax the metal trim to maintain its luster.
1. Use wax which contains no abrasives.
Waxes containing abrasive will remove
paint and could damage bright metal
parts.
2. Use a good grade of natural wax for
metallic, mica, and solid colors.
3. When waxing, coat evenly with the
sponge supplied or a soft cloth.
4. Wipe off the wax with a soft cloth.
NOTE
A spot remover to remove oil, tar, and similar
materials will usually also take off the wax.
Rewax these areas even if the rest of the
vehicle does not need it.
Maintenance and Care
Appearance Care
8-63
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Form No.8BM5-EA-10F
Page 437 of 508

Black plate (437,1)
qAluminum Wheel Maintenanceí
A protective coating is provided over the
aluminum wheels. Special care is needed
to protect this coating.
CAUTION
Do not use any detergent other than
mild detergent. Before using any
detergent, verify the ingredients.
Otherwise, the product could discolor
or stain the aluminum wheels.
NOTE
lDo not use a wire brush or any abrasive
cleaner, polishing compound, or solvent on
aluminum wheels. They may damage the
coating.
lAlways use a sponge or soft cloth to clean
the wheels.
Rinse the wheels thoroughly with lukewarm
or cold water. Also, be sure to clean the
wheels after driving on dusty or salted
roads to help prevent corrosion.
lAvoid washing your vehicle in an automatic
car wash that uses high-speed or hard
brushes.
lIf your aluminum wheels lose luster, wax
the wheels.
(With Tire Pressure Monitoring System)
Check special requirements for Tire Pressure
Monitoring System.
Refer to Tires and Wheels on page 5-34.
qPlastic Part Maintenance
lWhen cleaning the plastic lenses of the
lights, do not use gasoline, kerosene,
rectified spirit, paint, thinner, highly
acidic detergents, or strongly alkaline
detergents. Otherwise, these chemical
agents can discolor or damage the
surfaces resulting in a significant loss
in functionality. If plastic parts become
inadvertently exposed to any of these
chemical agents, flush with water
immediately.
lIf plastic parts such as the bumpers
become inadvertently exposed to
chemical agents or fluids such as
gasoline, oil, engine coolant, or battery
fluid, it could cause discoloration,
staining, or paint peeling. Wipe off any
such chemical agents or fluids using a
soft cloth immediately.
lHigh water temperature and high water
pressure car washers are available
depending on the type of high pressure
car washer device. If the car washer
nozzle is put too close to the vehicle or
aimed at one area for an extended
period of time, it could deform plastic
parts or damage the paint.
lDo not use wax containing compounds
(polish). Otherwise, it could result in
paint damage.
lIn addition, do not use an electrical or
air tool to apply wax. Otherwise, the
frictional heat generated could result in
deformation of plastic parts or paint
damage.
Maintenance and Care
Appearance Care
8-65íSome models. Mazda3_8BM5-EA-10F_Edition2 Page437
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Form No.8BM5-EA-10F
Page 490 of 508

Black plate (490,1)
Specifications
qEngine
ItemSpecification
2.0-liter engine2.3-liter turbocharged
engine2.5-liter engine
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke87.5 × 83.1 mm
(3.44 × 3.27 in)87.5 × 94.0 mm
(3.44 × 3.70 in)89.0 × 100 mm
(3.50 × 3.94 in)
Displacement1,999 ml
(1,999 cc, 122.0 cu in)2,261 ml
(2,261 cc, 138.0 cu in)2,488 ml
(2,488 cc, 151.8 cu in)
Compression ratio 10.0 9.5 9.7
qElectrical System
ItemClassification
2.0-liter engine2.3-liter turbocharged
engine2.5-liter engine
Battery12V-40AH/5HR,
12V-52AH/5HR12V-48AH/5HR,
12V-52AH/5HR12V-40AH/5HR,
12V-48AH/5HR,
12V-52AH/5HR
Spark-plug numberLFG1 18 110
*1, L3Y2 18
110L3BD 18 110*1, L3YD 18
110LFG1 18 110*1, L3Y2 18
110
Spark-plug gap1.25―1.35 mm
(0.049―0.053 in)0.60―0.70 mm
(0.024―0.027 in)1.25―1.35 mm
(0.049―0.053 in)
*1 ex factory
NOTE
When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on the iridium
alloy and platinum tips could be damaged.
qLubricant Quality
Lubricant Classification
Engine oil Refer to the recommended SAE viscosity numbers on page 8-18.
Manual transaxle oilAPI Service GL-4
SAE 75W-80
Automatic transaxle fluid Mazda Genuine ATF M-V
Power steering fluid Mazda Genuine ATF M-III, M-V, or equivalent (e.g. Dexron® II)
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
10-4
Specifications
Mazda3_8BM5-EA-10F_Edition2 Page490
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Form No.8BM5-EA-10F