ENGINE [SKYACTIV-G 1.5, SKYACTIV-G 2.0]

id0100000002dl


Special Features

•  For SKYACTIV-G 1.5 and SKYACTIV-G 2.0 are the following has been implemented to lower fuel consumption.
―  Sliding resistance*1 reduction
•  Rocker arm (with built-in needle roller bearing) adopted for cam-contact area
•  Reduced valve spring load
•  Narrowed down crankshaft journal
•  Optimized piston skirt shape
•  Lowered piston ring tension
•  Lowered drive belt tension
•  Suppressed chain tensioner load by stabilized timing chain behavior
•  Oil shower pipe adopted
―  Mechanical resistance loss reduction
•  Optimized oil passage
•  Optimized oil pump shape
•  Engine oil control adopted
―  Cooling loss reduction in early stage of combustion
•  Piston cavity adopted
―  Pumping loss*2 reduction
•  Variable valve timing mechanism adopted on both intake and exhaust sides for fine control of exhaust amount and internal EGR volume
―  Cooling efficiency improvement
•  Air seal cowl adopted
•  Optimized cooling fan shape
•  Optimized engine coolant passage
•  Optimized water pump impeller shape
―  Combustion efficiency improvement
•  Multiple hole-type fuel injectors adopted
•  High-pressure fuel pump adopted
•  The HLA has been adopted to achieve the maintenance-free valve clearance.
•  The 4-2-1 type exhaust pipes have been adopted for the exhaust manifold to achieve an engine with a high compression ratio.
•  L-jetronic*3 and D-jetronic*4 types have been adopted for the intake air amount measurement to achieve stable combustion free from abnormal combustion.
―  MAF sensor adopted
―  MAP sensor adopted
―  IAT sensor No.1 and No.2 adopted
•  To improve the fuel economy and emission performance, an electric variable valve timing control has been adopted for the intake side, and a hydraulic variable valve timing control for the exhaust side. The electric type is adopted for the intake side to achieve expanded valve overlap and delayed closing of the intake valve (enlarged intake valve opening angle).
Intake side: Electric variable valve timing control
―  Intake CMP sensor adopted
―  Electric variable valve timing motor/driver adopted
―  Electric variable valve timing relay adopted
Exhaust side: Hydraulic variable valve timing control
―  Exhaust CMP sensor adopted
•  Engine hydraulic pressure switching control has been adopted to reduce the oil pump operation load on the engine.
―  Engine oil solenoid valve adopted
•  To decrease generator operation loss, i-ELOOP has been adopted which generates electricity from energy occurring when the vehicle decelerates. (With i-ELOOP) (See: i-ELOOP [i-ELOOP].)
―  DC-DC converter (i-ELOOP) adopted
•  Generator output control has been adopted to improve fuel economy/idling stability.
―  A current sensor adopted (With i-stop system)
•  To improve engine reliability, an ion sensor has been adopted which detects pre-ignition.
•  LIN communication has been adopted to the current sensor to realize wiring harness simplification. (With i-stop system)
•  i-stop control has been adopted to improve fuel efficiency, and reduce exhaust gas and idling noise. (With i-stop system)
*1  :Resistance (friction force) which occurs when objects slide. The larger the sliding resistance, the greater the energy loss.
*2  :Energy loss due to resistance in each part during intake/exhaust process is called pumping loss.
*3  :The intake air amount is directly detected by measuring the amount of intake air flow using the MAF sensor.
*4  :The intake air amount is detected indirectly by measuring the intake manifold pressure (pressure between downstream of the throttle valve and intake manifold) using the MAP sensor.

Specification

Item

Specification

SKYACTIV-G 1.5

SKYACTIV-G 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})
1,496 {1,496}
1,998 {1,998}
Bore × stroke
(mm {in})
74.5 × 85.8 {2.93 × 3.38}
83.5 × 91.2{3.29 × 3.59}
Compression ratio
13.0:1
Valve timing
IN
Open
(°)
BTDC 38—ATDC 36
BTDC 42—ATDC 32
Close
(°)
ABDC 36—ABDC 110
ABDC 36—ABDC 110
EX
Open
(°)
BBDC 64—BBDC 19
BBDC 69—BBDC 24
Close
(°)
ATDC 5—ATDC 50
ATDC 5—ATDC 50
LUBRICATION SYSTEM
Type
Force-fed type
Oil pressure (reference value)
[Coolant temperature: 80—90 °C {176—194 °F}]
(kPa {kgf/cm2, psi}[rpm])
Low oil pressure: 110―175 {1.13―1.78, 16.0―25.3}[1,500]
High oil pressure: 300―430 {3.06―4.38, 43.6―62.3}[4,500]
Oil pump
Type
Trochoid gear type
Oil filter
Type
Full-flow
Bypass pressure
(kPa {kgf/cm2, psi})
78—118 {0.80—1.20, 12.0—17.1}
Oil capacity (approx. quantity)
Total (dry engine)
(L {US qt, lmp qt})
4.9 {5.2, 4.3}
MT: 5.1 {5.4, 4.5}
AT: 5.0 {5.3, 4.4}
Oil replacement
(L {US qt, lmp qt})
4.1 {4.3, 3.6}
Oil and oil filter replacement
(L {US qt, lmp qt})
4.3 {4.5, 3.8}
COOLING SYSTEM
Type
Water-cooled, Electromotive
Water pump
Type
Centrifugal, V-ribbed belt-driven
Thermostat
Type
Wax type
Opening temperature
(°C {°F})
86.5—89.5 {188—193}
Full-open temperature
(°C {°F})
100 {212}
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}
Cooling fan type
Type
Electric type
Number of blades
9
Outer diameter
(mm {in})
335 {13.2}
Cooling fan motor output
(W)
MT: 120
AT: 160
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. 450 {4.59, 65.3}
Fuel pump
Type
Electric type
Fuel tank
Capacity
(L {US gal, lmp gal})
45 {11.9, 9.90}
EMISSION SYSTEM
Catalyst
Type
WU-TWC (monolith)
TWC (monolith)
EVAP control system
Type
Charcoal canister type
PCV system
Type
Closed type
CHARGING SYSTEM
Battery
Voltage
(V)
12
Type
(with i-stop)
Not applicable
N-55 (S)
Type and capacity
(without i-stop)
(A·h/20HR)
46B24L (45)
Generator
Output
(V-A)
12-100
Without i-ELOOP: 12-100
With i-ELOOP: 12-150
IGNITION SYSTEM
Ignition system
Type
SEI
Spark advance
Electronic
Firing order
1—3—4—2 (all cylinders independent firing)
Spark plug
Type
PE5R-18-110
PE5S-18-110
STARTING SYSTEM
Starter
Type
Coaxial reduction
Output
(kW)
1.0
Without i-stop: 1.0
With i-stop: 1.4
CONTROL SYSTEM
i-stop OFF switch
ON/OFF type switch
Neutral switch
ON/OFF type switch
CPP switch
ON/OFF type switch
MAF sensor
Hot film
IAT sensor No.1
Thermistor
IAT sensor No.2
Thermistor
MAP sensor
Piezoresistance
TP sensor
Hall element
APP sensor
Electromagnetic induction action applied to non-contact type
CKP sensor
Magnetic resistance element
Intake CMP sensor
Magnetic resistance element
Exhaust CMP sensor
Magnetic resistance element
ECT sensor
Thermistor
BARO sensor
Piezoelectric element
Fuel pressure sensor
Strain gauge
KS
Piezoelectric element
Current sensor
Voltage detecting area/Current detecting area/Temperature detecting area
A/F sensor
Zirconium element
HO2S
Zirconia element
Oil pressure switch
ON/OFF type switch
Clutch stroke sensor
Hall element
Vacuum sensor 2
Piezoelectric element
Ion sensor
Ion detection circuit

Compression pressure [SKYACTIV-G 1.5]
amxzzw00003922
Compression pressure [SKYACTIV-G 2.0]
amxzzw00003923

Engine oil [European and Taiwan]

Classification
Europe and Taiwan
Except Europe and Taiwan
Recommended Oils
Oil Quality
Mazda Original Oil Supra 0W-20
API SL/SM/SN or ILSAC GF-III/GF-IV/GF-V
Mazda Original Oil Ultra 5W-30
Alternative Oil Quality
API SN or ACEA
A5/B5
0W-20
5W-30

Engine oil [Australian specs.]

Item

Specifications
Grade
API SL/SM/SN or ILSAC GF-III/GF-IV/GF-V
Viscosity (SAE)
10W-30, 10W-40, 10W-50, 5W-20, 5W-30, 5W-40, 0W-20, 0W-30

Engine coolant capacity (approx. quantity)

Item

Capacity
SKYACTIV-G 1.5
MT
L.H.D.
5.6 L (5.9 US qt, 4.9 Imp qt)
R.H.D.
5.8 L (6.1 US qt, 5.1 Imp qt)
AT
5.6 L (5.9 US qt, 4.9 Imp qt)
SKYACTIV-G 2.0
MT
L.H.D.
6.0 L (6.3 US qt, 5.3 Imp qt)
R.H.D.
6.2 L (6.6 US qt, 5.5 Imp qt)
AT
Saudi Arabia
6.0 L (6.3 US qt, 5.3 Imp qt)
R.H.D.
5.8 L (6.1 US qt, 5.1 Imp qt)
Except above
5.7 L {6.0 US qt, 5.0 Imp qt}

Fuel type

Fuel

Research Octane Number

Country
Premium unleaded fuel
(Conforming to EN 228 and within E10)*
95 or above
New Caledonia, Turkey, Azerbaijan, Georgia, Reunion, Morocco, Austria, Romania, Bulgaria, Macedonia, Bosnia and Herzegovina, Serbia, Montenegro, Albania, Moldova, Belgium, Luxembourg, Switzerland, Liechtenstein, Denmark, Faeroe, Iceland, Spain, Canary Islands, France, Andorra, Monaco, Finland, Latvia, Lithuania, Estonia, Greece, Italy, Vatican, San Marino, Norway, Portugal, Sweden, Hungary, Germany, Poland, Croatia, Slovenia, Slovakia, Czech, The Netherlands, Ukraine, Martinique, Guadeloupe, Cyprus, Malta, Ireland, UK, Australia, New Zealand, Myanmar, Taiwan, Vietnam, The Philippines, Cambodia, Laos, Tahiti, Kuwait, Oman, Qatar, Saudi Arabia, UAE, Bahrain, Lebanon, Israel, Jordan, Tunisia, Egypt, Madagascar, Chile, El Salvador, Guatemala, Costa Rica, Ecuador, Haiti, Bolivia, Colombia, Dominican Republic (LHD), Panama, Uruguay, Honduras, Peru, Curacao, St. Martin, Singapore, Hong Kong, Indonesia, Malaysia, Thailand, Brunei, Macau, Sri Lanka, South Africa, Namibia, Botswana, Swaziland, Lesotho, Jamaica, Grenada, St. Lucia, St. Vincent, Antigua, Surinam, Trinidad and Tobago, Commonwealth of Dominica
Regular unleaded fuel
90 or above
Fiji

*  :Europe