ENGINE [SKYACTIV-X 2.0]


id0100000002hf


Special Features

•  For SKYACTIV-X 2.0 the following have been adopted to lower fuel consumption.
―  Mechanical resistance loss improvement from:
•  Narrowed down crankshaft journal
•  Optimized piston skirt shape
•  Lowered piston ring tension
•  Roller follower adopted
•  Reduction of valve spring load
•  Stabilization of timing chain behavior
•  Optimized engine coolant passage
•  Optimized water pump impeller shape
•  Lowered drive belt tension
•  Optimized oil passage
•  Optimized oil pump shape
•  Oil pump discharging pressure control adopted.
―  Pumping loss improvement from:
•  Variable valve timing mechanism adopted on both sides of intake and exhaust.
•  Cooling loss improvement
―  Coolant switching valve adopted
―  Optimized engine coolant passage
•  L-jetronic*1 and D-jetronic*2 type detectors have been combined for intake air amount detection, improving the accuracy of the intake air amount measurement.
―  MAF sensor adopted
―  MAP sensor adopted
―  IAT sensor No.1 and No.2 adopted
•  Valve timing control has been adopted on both sides of the intake and exhaust, improving fuel economy and emission performance.
Intake side: Electric variable valve timing control
―  Intake CMP sensor adopted
―  Intake electric variable valve timing motor/driver adopted
―  Intake electric variable valve timing relay adopted
Exhaust side: Electric variable valve timing control
―  Exhaust CMP sensor adopted
―  Exhaust electric variable valve timing motor/driver adopted
―  Exhaust electric variable valve timing relay adopted
•  Engine oil variable control has been adopted reducing engine load.
―  Engine oil temperature sensor adopted
―  Engine oil pressure sensor adopted
―  Engine oil solenoid valve adopted
•  With the adoption of fuel pump control, fuel pump power consumption has been reduced, improving fuel economy.
―  Fuel pump control module adopted
*1  :Measures the intake air amount directly using the MAF sensor.
*2  :Measures the intake air pressure introduced into the cylinder using the MAP sensor and calculates the intake air amount indirectly.

Specification

Item

Specification

SKYACTIV-X 2.0

MECHANICAL
Type
Gasoline, 4-cycle
Cylinder arrangement and number
In-line, 4-cylinder
Combustion chamber
Pentroof
Valve system
DOHC, timing chain driven, 16 valves
Displacement
(ml {cc})
1,998 {1,998}
Bore × stroke
(mm {in})
83.5 × 91.2 {3.29 × 3.59}
Compression ratio
15.0:1
16.3:1
Valve timing
IN
Open
(°)
BTDC 42.5—ATDC 53 (HF01-12421)
BTDC 40—ATDC 55.5 (HF03-12421)
BTDC 42.5—ATDC 33 (HFH1-12421)
Closed
(°)
ABDC 17.5—ABDC 113 (HF01-12421)
ABDC 20—ABDC 115.5 (HF03-12421)
ABDC 37.5—ABDC 113 (HFH1-12421)
EX
Open
(°)
BBDC 90—BBDC 30
Closed
(°)
BTDC 20—ATDC 40 (HF01-12421)
BTDC 30—ATDC 30 (HF03-12421)
LUBRICATION SYSTEM
Type
Force-fed type
Oil pressure (reference value)
[Oil temperature 80―90 °C {176―194 °F}, coolant temperature 80―90 °C {176―194 °F}]
(kPa {kgf/cm2, psi}[rpm])
Low hydraulic pressure: 92―114 {0.94―1.16, 13.0―16.5} [1,500]
High hydraulic pressure: 176―204 {1.79―2.08, 25.5―29.6} [4,500]
Oil pump
Type
Vane pump type
Oil filter
Type
Full-flow, paper element
Bypass pressure
(kPa {kgf/cm2, psi})
140—180 {1.43—1.84, 20.3—26.1}
Oil capacity (approx. quantity)
Oil replacement
(L {US qt, lmp qt})
4.4 {4.6, 3.9}
Oil and oil filter replacement
(L {US qt, lmp qt})
4.6 {4.9, 4.0}
Total (dry engine)
(L {US qt, lmp qt})
5.6 {5.9, 4.9}
COOLING SYSTEM
Type
Water-cooled, Electromotive
Water pump
Type
Centrifugal, V-belt-driven
Electric water pump
Type
Electromotive
Thermostat
Type
Wax type
Opening temperature
(°C {°F})
63.5―66.5 {146―152}
Full-open temperature
(°C {°F})
78 {172}
Full-open lift
(mm {in})
4.5 {0.18} or more
Electric thermostat
Type
Electric type
Opening temperature
(°C {°F})
95―99 {203―210}
Full-open temperature
(°C {°F})
110 {230}
Full-open lift
(mm {in})
8.5 {0.33} or more
Radiator
Type
Corrugated fin type
Cooling system cap
Valve opening pressure
(kPa {kgf/cm2, psi})
93.2―122.6 {0.951―1.250, 13.6―17.7}
Water-cooled charge air cooler reservoir tank cap
Valve opening pressure
(kPa {kgf/cm2, psi})
24―36 {0.24―0.37, 3.5―5.2}
Cooling fan
Type
Electric type
Number of blades
8
Outer diameter
(mm {in})
402 {15.8}
Cooling fan motor output
(W)
450
FUEL SYSTEM
Fuel injector
Type
High resistance
Fuel supply method
Top-feed
Drive types
Electronic type
Pressure regulator control pressure
(kPa {kgf/cm2, psi})
Approx. 660 {6.73, 95.7}
Check valve control pressure
(kPa {kgf/cm2, psi})
Approx. 294 {3.00, 42.6}
Fuel pump
Type
Electric
Fuel tank
Capacity
(L {US gal, lmp gal})
2WD: 51.0 {13.5, 11.2}
AWD: 48.0 {12.7, 10.6}
EMISSION SYSTEM
Catalyst
Type
TWC (monolith)
EVAP control system
Type
Charcoal canister type
PCV system
Type
Closed type
CHARGING SYSTEM
Battery
Voltage
(V)
12
Type
55D23L (60)
75D23L (65)
IGNITION SYSTEM
Ignition system
Type
SEI
Spark advance
Electronic
Firing order
1—3—4—2 (all cylinders independent firing)
Spark plug
Type
HF01-18-110
STARTING SYSTEM
Starter
Type
Coaxial reduction
Output
(kW)
1.7
CONTROL SYSTEM
Neutral sensor
MR (Magnetic Resistance) element
Revolution sensor
MR (Magnetic Resistance) element
Clutch stroke sensor
Hall element
Accelerator pedal position (APP) sensor
Electromagnetic induction
Mass air flow (MAF) sensor
Silicon element
Intake air temperature (IAT) sensor
Thermistor
Manifold absolute pressure (MAP) sensor
Piezoresistance
Throttle position (TP) sensor
Hall element
Crankshaft position (CKP) sensor
MR (Magnetic Resistance) element
Camshaft position (CMP) sensor
GMR element
Engine coolant temperature (ECT) sensor
Thermistor
Barometric pressure (BARO) sensor
Piezoelectric element
High fuel pressure sensor
Semiconductor strain gauge
Low fuel pressure sensor
Semiconductor strain gauge
High fuel temperature sensor
Semiconductor strain gauge
Low fuel temperature sensor
Thermistor
Air fuel ratio (A/F) sensor
Zirconia element
Heated oxygen sensor (HO2S)
Zirconia element
Boost pressure sensor
Piezoresistance
Boost air temperature sensor
Thermistor
Engine oil temperature sensor
Thermistor
Engine oil pressure sensor
Semiconductor strain gauge
Exhaust shutter valve position sensor
Hall element
EGR valve position sensor
Hall element
Engine oil level sensor
Ultra sonic sensor
Nox sensor
Zirconia element
Water pressure sensor
Semiconductor strain gauge
Fresh-air duct position sensor
Hall element
Supercharger speed sensor
MR (Magnetic Resistance) element
Swirl control valve (SCV) position sensor
MR (Magnetic Resistance) element
Cylinder pressure sensor
Piezoelectric element
EGR pressure sensor
Semiconductor strain gauge

Engine oil

Item

Grade

Viscosity (SAE)

Recommended engine oil*1
Mazda Original Oil Supra
Mazda Original Oil Supra-X
0W-20
Mazda Original Oil Ultra
5W-30
Alternative engine oil*2
API SN or higher
0W-20

*1  :Mazda Original Oils are specially designed/tested for the respective engine. For optimum performance we recommend to use Mazda Original Oils at all times.
*2  :If you are unable to find a Mazda Original Oil, alternative oils meeting the listed specification may also be used.

Engine coolant capacity (approx. quantity)

Item

Capacity

MTX
L.H.D.
7.0 L {7.4 US qt, 6.2 Imp qt}
R.H.D.
6.9 L {7.3 US qt, 6.1 Imp qt}
ATX
L.H.D.
7.2 L {7.6 US qt, 6.3 Imp qt}
R.H.D.
7.1 L {7.5 US qt, 6.2 Imp qt}*1 / 7.0 L {7.4 US qt, 6.2 Imp qt}*2

*1  :Europe
*2  :Australia

Fuel type

Fuel

Research Octane Number

Country

Premium unleaded fuel (Conforming to EN 228 and within E10)*1
95 or above
New Caledonia, Turkey, Canary Islands, Reunion, Morocco, Austria, Greece, Italy, Switzerland, Belgjum, Denmark, Finland, Norway, Portugal, Spain, Sweden, Hungary, Germany, Poland, Bulgaria, Croatia, Slovenia, Latvia, Lithuania, France, Ukraine, Czech, Estonia, Faeroe, Iceland, Romania, The Netherlands, Macedonia, Bosnia And Herzegovina, Andorra, Vatican, Sah Marino, Serbia, Monaco, Montenegro, Liechtenstein, Albania, Moldova, Martinique, F. Guiana, Guadeloque, Cyprus, Malta, Ireland, UK, taiwan, Iran, Israel, Saudi Arabia, UAE, Singapore, Hongkong, Macau, Mauritius, Jamaica, Surinam
Premium unleaded fuel*2
Australia, New Zeland
Premium unleaded fuel (within E20)
Thailand
Regular nleaded fuel
90 or above
Trinidad And Tobago

*1  :Europe
*2  :Australia