Fiat JTD engine. Multijet is a Fiat and General Motors joint venture, established in 1996, in manufacturing diesel engines with turbo and common rail direct injection technology. Most of the Fiat S.p.A., Fiat Professional, Groupe PSA (Peugeot and Citroën), Alfa Romeo, Maserati, Lancia, Chrysler, Chevrolet, Daewoo Motors, Cadillac, Karsan, Temsa, Iveco, Jeep, Opel, Vauxhall Motors, RAM Trucks, Mitsubishi Fuso, Maruti Suzuki, Suzuki, Tata Motors and Saab Automobile branded vehicles are equipped with Multijet engines. Ownership of some Fiat Multijet designs is shared with General Motors as part of a settlement of the failed merger between the two auto conglomerates. The GM Powertrain Torino group in Turin, Italy, manages its interest in these engines. Some PSA Peugeot Citroën diesel engines are also rebadged JTD units, and vice versa. Fiat's common-rail diesel engine is also known as JTD, an initialism of UniJet Turbo Diesel.

Characteristics 
The main improvement that distinguishes the Multijet from previous generations of common-rail diesel engines from FCA is the combustion process of the fuel, which is split into multiple injections, thus allowing for a more complete, quieter combustion in the cylinder. Compared to the first-generation JTD engines (Unijet system), which only featured a smaller pilot and a larger main injection, Multijet is capable of up to five injections per combustion cycle which enables better, more efficient cold running, better performance especially in the lower rev-range, quieter operation, as well as even lower consumption and emissions. The time between injections has been reduced to 150 microseconds while the minimal injection quantity has been reduced from two to less than one microlitre. This enables even mid-sized sedans like the Alfa Romeo 156 and Lancia Lybra equipped with the 1.9L JTD to achieve fuel economy upwards of 45 mpgUS (55 mpgimp or 5L/100 km) on country roads and highways while offering an equal amount of torque as the 3.0L 24V V6 engine.
A sophisticated electronic control unit controls the injection and changes the injection logic and number of injections based on a multitude of parameters, most importantly revolutions per minute of the engine, engine torque requested by the driver and the temperature of the coolant.
The injection pressure of the diesel fuel on the second-generation Multijet is limited to between  bar ( psi) on the 1.3 Multijet and  bar ( psi) on the 2.4 Multijet 20V.

Multijet II 
In 2009, Fiat Powertrain introduced the third generation of this technology, called Multijet II. With its new and innovative injectors with a hydraulically balanced solenoid valve and even higher injection pressure of 2,000 bar (29,000 psi) it is capable of even more precise controlling of the injected diesel fuel, injecting it in a quicker and more flexible manner. It enables up to eight consecutive injections per combustion cycle and implemented Injection Rate Shaping technology, which provides two very close pilot injections making the fuel delivery more continuous and modulated. This results in an engine that is quiet and has a smoother operation, lower emissions, better fuel mileage and higher performance compared to the previous generation.

Automotive engines

1.0 

A  3-cylinder variant, (called XSDE, Xtra Smart Diesel Engine) or Smartech Diesel, was introduced in 2011. Co-developed by GM Powertrain Torino and the GM Technical Center India for the Indian market the engine is rated at  of power and  of torque.

Applications:
 2011–2017 Chevrolet Beat (India)

1.3 JTDm/Multijet/CDTI/D/DDiS/HDi 

A small 1.3 L () version (called the SDE, Small Diesel Engine) introduced in February 2003 is produced in Bielsko-Biała, Poland, in Ranjangaon, Pune, India, by Fiat India Automobiles and Tata Motors joint venture plant since 2008, and by Maruti Suzuki in Gurgaon, Haryana, India since 2012. The Multijet 75 PS version was chosen in 2005 as the International Engine of the Year in the 1-litre to 1.4-litre category. There are five versions of this engine: a  and a  (used in the Punto, Panda, Doblo, Palio, Albea, Idea, 500; Opel Corsa, Combo, Meriva; Suzuki Ritz, Swift; and Tata Indica Vista), a  (used in the Fiat 500L and Fiat Doblo), a variable inlet geometry  (used in the Fiat Grande Punto, Linea; Opel Corsa, Astra; Suzuki Ertiga, SX4; Tata Indigo Manza and Alfa Romeo MiTo) and a  from the Multijet II generation, and a  available on the Lancia Ypsilon. Newton metre torque in the , ,  and . At the time of the launch this was the smallest four-cylinder diesel engine available and it had a fuel consumption of  in some applications. The engine is able to meet Euro IV emission standards without the use of a diesel particulate filter. In January 2008, Tata Motors introduced the new Indica Vista model, which features a new Quadrajet branded version of this engine. The second generation Ford Ka uses 1.3 Multijet named as Duratorq TDCi. In GM nomenclature, it is called Small Diesel Engine (SDE).

During 2009, Fiat launched a new generation badged Multijet II, with a new injection management system (up to 8 injections per cycle, instead of 5) and able to meet Euro V emission standards. It is available with several power outputs, from , with fixed geometry turbocharger, to , with variable geometry turbocharger.

As of 2013, more than 5 million 1.3 MultiJet engines were produced. In January 2020, the production of the 1.3 Multijet ended in India in both the Maruti Suzuki plant and the Fiat-Tata JV, as the BS6 emission regulations came into effect in the country from 1 April 2020. Fiat-Tata built a total of 800,048 engines over 12 years.

Applications

FCA 
Alfa Romeo MiTo
Fiat 500
Fiat 500L
Fiat 500X
Fiat Albea
Fiat Doblò
Fiat Fiorino
Fiat Grande Punto
Fiat Idea
Fiat Linea
Fiat Palio
Fiat Panda
Fiat Punto
Fiat Qubo
Fiat Strada
Fiat Tipo (2015)
Lancia Musa
Lancia Ypsilon

General Motors 
Chevrolet Aveo
Chevrolet Spark
Chevrolet Spin
Daewoo Matiz
Daewoo Gentra
Opel Agila
Opel Astra
Opel Combo
Opel Corsa
Opel Meriva
Opel Tigra TwinTop

PSA 
 Citroën Nemo
 Peugeot Bipper

Suzuki 
Suzuki Baleno
Suzuki Ciaz
Suzuki Dzire
Suzuki Ertiga
Suzuki Ignis
Suzuki Splash
Suzuki Swift
Suzuki SX4 Sedan
Suzuki SX4 S-Cross
Suzuki Vitara Brezza

Tata Motors 
Tata Bolt
Tata Indica Vista
Tata Indigo Manza
Tata Zest

Others 
DFSK Super Cab (Indonesia)
Ford Ka (2008)
Premier Rio

1.6 JTDm/Multijet/CDTI/DDiS 

In 2006 Fiat Powertrain announced a downsized version of the 1.9 16V Multijet, a new 1.6L 16V Multijet (1,598 cc) with two power levels of , ,  and  to replace the still-used 1.9L 8-valve engine. The new 1.6 Multijet diesel with , ,  and .

Applications

FCA 
Alfa Romeo Mito
Alfa Romeo Giulietta (2010)
Alfa Romeo Tonale
Fiat 500L
Fiat 500X
Fiat Bravo (2007)
Fiat Doblò
Fiat Punto
Fiat Idea
Fiat Linea
Fiat Tipo (2015)
Jeep Renegade
Jeep Compass
Lancia Delta (2008)
Lancia Musa

General Motors 
Opel Combo D

Suzuki 
Suzuki Vitara (2015)
Suzuki SX4 S-Cross (from 2013)

1.9 JTD/JTDm/Multijet/Twin Turbo Multijet/CDTI/TiD/TTiD/DDiS 

The most common JTD engine is the 1.9 L straight-4 found on various brands and models. The first car that used this engine was the Alfa Romeo 156 in 1997 (), making it the world's first common-rail diesel passenger car. In 1999, it was introduced in the Fiat Brava, Bravo and Marea range, as well as in the Fiat Punto JTD with a smaller, fixed-geometry turbocharger and . There were also , , , and  versions available. The engine block weighs approximately , the cylinder head features an overhead camshaft with directly actuated valves. The Multijet second generation features an advanced common-rail system and is available with seven different power outputs. The 8-valve version has , , or  and the 16-valve version has , , , or . Except for the 101 PS Multijet, all engines feature a variable-geometry turbocharger. Opel also uses a version of this engine. Their CDTI engine, manufactured in Pratola Serra, Italy and Kaiserslautern, Germany, is the product of the half-decade joint venture between GM and Fiat.  It is used in the Vectra, Signum, Astra, Zafira, Cadillac BLS and Suzuki SX4 as well as some Saabs marked as TiD and TTiD (twinturbo version).

Applications

FCA 
Alfa Romeo 145
Alfa Romeo 146
Alfa Romeo 147
Alfa Romeo 156
Alfa Romeo 159
Alfa Romeo GT
Fiat Bravo
Fiat Brava
Fiat Croma II
Fiat Doblò
Fiat Grande Punto
Fiat Marea
Fiat Multipla
Fiat Punto
Fiat Idea
Fiat Sedici
Fiat Stilo
Fiat Strada
Lancia Delta
Lancia Lybra
Lancia Musa

General Motors 
Cadillac BLS
Opel Astra H
Opel Signum
Opel Vectra C
Opel Zafira B
Saab 9-3
Saab 9-5

Suzuki 
Suzuki SX4

Others 
Alenia Aeronautica Sky-Y
DR5

SAIC Motor 
MG 6

Twin Turbo

Fiat Powertrain Technologies released information about a new two stage turbo (twin turbo) version of this engine in summer 2007, which is available with two power levels, one producing  and one , both with a maximum torque output of  at 2000 rpm. The 180 PS version production started summer 2007. The engine weighs approximately . This engine will be sold both to Fiat Group Automobiles and other brands, but the  version is reserved only to Fiat Group Automobiles.

Applications 
Cadillac BLS
Lancia Delta
Saab 9-3

2.0 JTDm/CDTI/TiD/TTiD/VCDi/Multijet II/DDiS 

A new 2 litre (1,956 cc, 83 mm bore, 90.4 mm stroke) Multijet diesel was introduced in third generation Lancia Delta in summer 2008. At its first version this engine produces . For 2009 the engine was fitted to Alfa Romeo 159 as  variant. Fiat Sedici, Suzuki SX4 and the new Fiat Doblò generation use a  variant of this engine. GM Powertrain separately developed their diesel engines based on 1.9 JTD, after end of the GM and Fiat partnership, and first was the  version for Astra and Insignia, which was later upgraded to 165 PS for Astra (163 PS in restyled version of Insignia), and less powerful version for Insignia with 110 PS and 130 PS. In 2011 GM Powertrain Europe developed a new derivative - the twin-turbocharger BiTurbo version, with , which is used in the Insignia and starting with 2013 in the Astra J. Internally the new engine is referred to as GM Ecotec Family B engine. The same engine was also available in the 2011 Saab 9–5 with 160 PS and 190 PS twin-turbo. In 2013 Opel introduced cleaner and more fuel efficient versions of the 2.0 CDTI engine and the ecoFLEX version, with 99 g/km of CO2 and 120 PS (140 PS for Insignia).

Applications

FCA 
Alfa Romeo Giulietta (2010)
Alfa Romeo 159
Fiat Bravo (2007)
Fiat Doblò II
Fiat Ducato III
Fiat Freemont
Fiat Sedici
Fiat Toro
Fiat 500X
Jeep Compass
Jeep Cherokee (KL)
Jeep Meridian
Jeep Commander
Jeep Renegade
Lancia Delta III

General Motors 

2014–2015 Chevrolet Cruze (NA)
2016-2017 Chevrolet Captiva (KOR)
2013-2015 Chevrolet Malibu
Daewoo Lacetti
Opel Antara
Opel/Vauxhall Astra J (single and twin turbo)
Opel/Vauxhall Cascada (single and twin turbo)
Opel/Vauxhall Insignia (single and twin turbo)
Opel/Vauxhall Zafira Tourer (single and twin turbo)
Saab 9-5 (single and twin turbo)
2020 Cadillac XT4 (EU market)

SAIC Motor 
 MG Hector

Suzuki 
Suzuki SX4

Tata Motors 
Tata Harrier
Tata Safari

2.2 JTDm/Multijet II 

The 2.2 Multijet II (2,184 cc) was introduced by Fiat Chrysler in mid-2015. These engines produce  and  with  of torque at 2500 RPM in the Jeep Cherokee. It was developed to offer more torque in the low-rev range compared to the 2.0L Multijet. This engine further improves the existing 2.0 Multijet in various areas, such as a higher injection pressure (2,000 Bar instead of 1,600 Bar) with Injector Rate Shaping, an oil pump with variable displacement and counterbalance-shafts to reduce noises and vibrations. This engine meets Euro 6 emission norms without the use of diesel exhaust fluid injection. A 2.2 Multijet III (2,184 cc) was introduced by Stellantis on the Fiat Ducato in 2021 with 4 power outputs: 120, 140, 160, & 180 hp. It meets Euro 6d emissions standards.

A further development of this engine with a 2,143 cc displacement, and a die-cast Aluminium block, is used in the Alfa Romeo Giulia (952), Alfa Romeo Stelvio, and Jeep Wrangler (JL).

Announced in 2023, a new version of the 2.2 Multijet Evo (2,184 cc) four-cylinder engine (code B.B2) entered production in 2024 and was Euro 7 approved in 2025. This engine produced in the Pratola Serra (Avellino) factory is mounted on the Fiat Ducato (and twins Opel Movano, Citroën Jumpy, Peugeot Boxer and Toyota Proace Max), Peugeot Landtrek, Fiat Titano, RAM Rampage, Fiat Toro, Jeep Compass and Jeep Commander (in Brazil). South american version was Proconve L8 homologated.

From 2025, the 2.2 Multijet Evo engine will also be adopted by K0 commercial vehicles (Peugeot Expert, Fiat Scudo/Ulysse, Citroën Jumpy, Opel Vivaro/Zafira Life, Toyota Proace/Proace Verso), replacing the previous 1.5 HDI and 2.0 HDI engines of PSA origin.

Applications 
2,143 cc aluminium block
Alfa Romeo Giulia (952)
Alfa Romeo Stelvio (949)
Jeep Wrangler (JL)

2,184 cc cast-iron block
Fiat Ducato and Peugeot/Opel/Citroën twins
Fiat Scudo and other K0 twins
Fiat Toro
Jeep Cherokee (KL)
Jeep Compass (Brasil)
Jeep Commander (Brasil)
Ram Rampage
Peugeot Landtrek

2.4 JTD/JTDm/Multijet 

The 2.4 L (2,387 cc) straight-5 version is based on the 2.4  5 cylinder TD engine as used in the Mk1 Fiat Marea and the Mk1 Lancia Kappa. The JTD version benefits from the solid build of the TD block, and an improved head/injection system. There are 2 versions of the 2.4 JTD, the 10-valve as used in the Fiat Marea 130 JTD and the earlier Alfa Romeo 156/Alfa Romeo 166/Lancia Lybra diesels where it was available as , ,  and later a Multijet 20-valve version  as used in the later (2003>) Alfa Romeo 156 as well as some Lancia vehicles. It was designed for transverse front-wheel drive use and was deemed too long and tall for widespread use in other GM Ecotec or Fiat products. A newer Multijet variant of this engine, capable for , is used in the Alfa Romeo 159, Alfa Romeo Brera and Fiat Croma. The latest version of this engine produces  and  at 1500 rpm, and is used in Alfa Romeo vehicles.

Applications 
Alfa Romeo 156
Alfa Romeo Spider
Alfa Romeo Brera
Alfa Romeo 159
Alfa Romeo 166
Fiat Croma II
Fiat Marea
Lancia Kappa
Lancia Lybra
Lancia Thesis

2.8 

Evolution of VM Motori A 428 DOHC in the inline-4 engine with 1,800 bar (26,000 psi) common rail injection system and piezoelectric injectors

Applications 
 2011–2013 Lancia Voyager power: 163 PS (120 kW; 161 hp); torque: 360 N⋅m (266 lb⋅ft)
 2013–2016 Lancia Voyager power: 178 PS (131 kW; 176 hp); torque: 360 N⋅m (266 lb⋅ft)

3.0 

A  double overhead camshaft V6 engine, featuring four valves-per-cylinder and common-rail direct fuel injection. A variant complying with the emission norms of the North America market (NAFTA) is the 3.0 V6 Multijet II and marketed by Fiat Chrysler as the FPT Multijet II. The high-performance, single turbo version is Jeep.

A630 applications (Europe) 
 2011 Jeep Grand Cherokee (Also Australia)
 power , torque 
 2012 Lancia Thema
 power  @ 4000 rpm, torque  @ 1600-2800 rpm
 power  @ 4000 rpm, torque  @ 1800-2800 rpm
 2014 Jeep Grand Cherokee (FPT Multijet II)
 power  @ 4000 rpm, torque   @ 2000 rpm

L630 applications (North America) 
 2021–2023 Jeep Gladiator Branded as EcoDiesel
 power  @ 3600 rpm, torque   @ 2000 rpm
 2014–2019 Jeep Grand Cherokee Branded as EcoDiesel
 power  @ 3600 rpm, torque   @ 2000 rpm
 2020–2023 Jeep Wrangler Branded as EcoDiesel
 power  @ 3600 rpm, torque   @ 2000 rpm
 2014–2018 Ram 1500 Branded as EcoDiesel
 power  @ 3600 rpm, torque   @ 2000 rpm
 2019–2023 Ram 1500 Branded as EcoDiesel
 power  @ 3600 rpm, torque   @ 2000 rpm

A630 HP applications (Europe) 
 2013 Maserati Ghibli III
 power  @ 4000 rpm, torque  @ 2000 rpm
2013 Maserati Quattroporte VI
 power  @ 4000 rpm, torque  @ 2000-2600 rpm
2016 Maserati Levante
 power  @ 4000 rpm, torque  @ 2000-2600 rpm
 power  @ 4000 rpm, torque  @ 2000-2600 rpm

Light commercial vehicle engines

1.5 Multijet II 

The Multijet II engine is a 1.5 L (1,499 cc) inline-four found on various brands and models. Versions of this engine include the PSA DV5 in the third generation Fiat Doblò and third generation Fiat Scudo. Power outputs are ,  with maximum torque output of  or  at 2000 rpm. The PSA HDi engine variant is manufactured by Groupe PSA as a product of the joint venture with Stellantis.

Applications

Fiat 
 Fiat Doblò
 Fiat Scudo

1.6 Multijet II 

The 1.6 Multijet II (1560 cc) was developed by PSA HDi engine and Ford Duratorq engine for heavy-duty applications and is available in three versions 90 Multijet (PSA DV6) these engines produce  respectively.

Applications 
Fiat Scudo

2.0 JTD/Multijet 

The 2.0 JTD/Multijet (1998 cc) was developed by PSA HDi engine for heavy-duty applications and is available in three versions 90 JTD (PSA DW10), 110 JTD (PSA DW10), 120 MultiJet (PSA DW10), 136 MultiJet (PSA DW10), 150 MultiJet (PSA DW10) and 180 MultiJet (PSA DW10)  these engines produce , , , ,  and  respectively.

Applications 
Fiat Ulysse
Fiat Scudo
Lancia Zeta
Lancia Phedra

2.3 JTD/Multijet 

The 2.3 Multijet (2,287 cc) was developed by Iveco for heavy-duty applications and is available in three versions 120 MultiJet (Sofim F1AE0481D), 130 MultiJet (Sofim F1AE0481N or F1AE6481D) and 150 MultiJet (Sofim F1AE3481E), these engines produce ,  and  respectively.

Applications 
Fiat Ducato
Iveco Daily
Karsan Jest
UAZ Patriot

2.4 Multijet 

The 2.4 Multijet (2,442 cc) was developed by Mitsubishi 4N15 for Mitsubishi L200 applications and is available in three versions these engines produce  and  respectively.

Applications 
Fiat Fullback

2.8 JTD/HDi 

The 2.8 JTD (2,800 cc) made by Iveco (SOFIM) was used in second generation Fiat Ducato, it produces  or .

Applications 
 Citroën Jumper
 Fiat Ducato
 Iveco Daily
 Iveco Massif
 Peugeot Boxer
 Renault Mascott

3.0 Multijet Power/HDi 

The 160 MultiJet Power, introduced in 2007, saw displacement increased to 3.0 L (2,998 cc). This engine produces  or  in Fiat-badged models. In Iveco Massif this engine is also available as  version.

Applications 
 Citroën Jumper
 Fiat Ducato
 Iveco Daily
 Iveco Massif/Campagnola
 Mitsubishi Canter
 Multicar Fumo
 Peugeot Boxer
 RAM ProMaster
 Temsa Prestij
 Karsan Jestronic

See also
 Fully Integrated Robotised Engine
 Fiat Global Small Engine
 Fiat Pratola Serra modular engines

Notes

References
 
 
 
 

Fiat engines
General Motors engines
PSA engines
Peugeot engines
Alfa Romeo engines
Lancia engines
Suzuki engines
Daewoo engines
Cadillac engines
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Diesel engines by model
Diesel engine technology
Straight-three engines
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