Specifications; Electrical System; G 2.0- Page 594

2021 Mazda Mazda3 Hatchback Owners Manual

Table of Contents

When Driving
Customer Information and Reporting Safety Defects
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Speci

fi

cations

Engine

Item

Speci

fi

cation

SKYACTIV

-

G 2.0

SKYACTIV

-

G 2.5

SKYACTIV

-

G 2.5T

Type

DOHC

-

16V in-line, 4-cylinder

Bore × Stroke

83.5 × 91.2 mm (3.29 ×

3.59 in)

89.0 × 100 mm (3.50 × 3.94 in)

Displacement

1,997.6 ml (1,997.6 cc)

2,488.5 ml (2,488.5 cc)

Compression
ratio

13.0

10.5

Electrical System

Item

Classi

fi

cation

Battery

*1

12V

-

60Ah/20HR or 12V

-

65Ah/20HR

Spark-plug num-
ber

SKYACTIV

-

G 2.0,

SKYACTIV

-

G 2.5

Mazda Genuine spark
plug

*2

PE5R

-

18-110 or PE5S

-

18-110

SKYACTIV

-

G 2.5T

Mazda Genuine spark
plug

*2

PY8V

-

18-110

*

1 Check the battery installed on the vehicle and use a battery with an equal or higher performance.

However, the performance of the battery may vary even among the same battery types, consult an
Authorized Mazda Dealer for replacement.

*

2 This spark plug provides the SKYACTIV

-

G engine with optimum performance. Contact an Authorized

Mazda Dealer for details.
 

CAUTION

When cleaning the iridium plugs, do not use a wire brush. The 

fi

ne particulate

coating on the iridium alloy and platinum tips could be damaged.

Speci

fi

cations

Speci

fi

cations

9-4

Mazda3_8JM2-EA

-

20H_Edition1_new

2020-7-10 17:21:34

Detailed Information for 2021 Mazda Mazda3 Hatchback Owners Manual

Lists of information found in 2021 Mazda Mazda3 Hatchback Owners Manual - Page 594

  • 2.0 SKYACTIV - G 2.
  • 2.5T Type DOHC - 16V in-line, 4-cylinder Bore × Stroke 83.
  • 91.2 mm (3.
  • 3.59 in) 89.
  • 3.50 × 3.
  • 97.6 ml (1,997.
  • 88.5 ml (2,488.
  • 13.0 10.
  • 2.0, SKYACTIV - G 2.
  • 2.5T Mazda Genuine spark plug *2 PY8V - 18-110 * 1 Check the battery installed on the vehicle and use a battery with an equal or higher performance.