Mazda diesel engines

Mazda has a long history of building its own diesel engines, with the exception of a few units that were built under license.

Inline-fours

 * PN - 1720 cc - Used in the Mazda Familia and Ford Laser
 * R2 - 2184 cc - Used in the 1984 onwards Mazda Bongo
 * SL - 3455 cc - Used in the T3500 light truck (Mazda Titan)
 * TF - 4021 cc -
 * TM - 4553 cc -
 * VS - 2956 cc -
 * WL - 2499 cc, bore x stroke 93x92 mm - naturally aspirated or turbodiesel, used in non-US 1995 Mazda MPV, various Mazda B-Series trucks.
 * W9 - 2892 cc, bore x stroke 95x102 mm - naturally aspirated diesel, an enlarged version of the WL
 * XB - 2701 cc - 81 PS, used in 1973 Mazda Parkway (AEXC), E2700 Van and T2700 Titan.
 * XC - 3663 cc -

Perkins 200 series
The Perkins 200 series engines (GA/GB/GC in internal parlance) were manufactured by licensee Toyo Kogo (Mazda) for use in automotive and other applications. Perkins 4.135, 4.154, and 4.182 manufactured replacement engine parts are used interchangeably in the Mazda S2, XA, and HA engines, respectively.
 * S2 - 2209 cc - License built Perkins 4.135 related to HA and XA, used in 1979 to 1986 Mazda Luce, Bongo/E2200, B2200, Ford Ranger
 * XA - 2522 cc - License built Perkins 4.154 related to HA and S2, used in 1970 Mazda E2500 and 1971 Mazda Titan, Mazda Parkway and some Bobcat skid-steer loaders. A six-cylinder version of this is called the "YA".
 * HA - 2977 cc - License built Perkins 4.182 related to S2 and XA

All of these engines have cast iron blocks and heads, two overhead valves per cylinder driven by maintenance-free timing gears, crossflow heads, are indirect injection. US-market B2200 and Ford Ranger trucks - and possibly the others as well - had rotary Bosch VE-style injection pumps, built by Diesel Kiki under license from Bosch.

1983
A diesel variation of the 1998 cc FE engine which shares its square internal dimensions of 86x86 mm bore and stroke - it is virtually the same block, with identical bell housing pattern and block dimensions. This could be a testament to the F-block's strength as it was over-built for naturally aspirated duty. Its alloy head is entirely different though, with valves directly actuated rather than the rockers of the FE. The glow plugs are located in remote combustion chambers, with fuel delivered by a mechanical pump. The RF is light, with the original naturally aspirated version weighing in at 146 kg, 10 kg; more than the FE. The RF The RF and R2 continue production to this day as the MZR-CD, with counter-rotating balance-shafts mounted between the engine block and oil pan as well as much evolved head and direct-injection technology. The RF is a SOHC, two valves-per-cylinder engine. One of Mazda's more popular diesel engines, it was also available with a pressure wave supercharger called Comprex.

Applications:
 * 1984–1992 Mazda Capella/626
 * 61 PS at 4000 rpm, 12.3 kgm at 2750 rpm (DIN, naturally aspirated EU version)


 * 1983–1990 Mazda E-series
 * 1999-2005 Mazda Premacy
 * 1999 Mazda 626
 * 1984–1986 Ford Tempo/Mercury Topaz
 * 1984–1987 Ford Escort/Mercury Lynx (North America)
 * 1988–1991 Kia Concord
 * 1998–2003 Kia Sportage, Turbo-intercooler diesel variant released for Asia
 * 1994–1998 Suzuki Vitara
 * 1998–2003 Suzuki Grand Vitara

1997
The emission improved version used in the Mazda 323 from mid-1997 adopted a new swirl chamber with an enlarged volume, revised swirl-chamber-to-main-chamber ratio and a narrower throat area. Engine produces 52 kW at 4500 rpm on a raised 21.7:1 compression ratio, and has an exceptionally wide spread of torque throughout its range, peaking with 128 Nm at 3000 rpm.

Further engine features:
 * optimized intake manifold, with inertia moment effect flow
 * camshaft with Mazda's Multi-Function cam profile theory (increases valve lift to 9.1 mm and enhances the engine's volumetric efficiency at lower speed range, resulting in an improved torque output, never falling below 108 Nm between 1500 rpm and 4500 rpm)
 * electrically controlled distributor-type fuel injection pump
 * electronically controlled EGR valve

Engines were mounted in:
 * Mazda 323 P 3D hatchback and 4D sedan since June 1997
 * Mazda 323 5D hatchback since August 1998

RF-CX Comprex

 * ABB Comprex pressure wave supercharger
 * 56 kW at 4,000 rpm, 172 Nm at 2000 rpm (JDM 1987)
 * 60 kW at 4,000 rpm, 181 Nm at 2000 rpm (JIS Netto, JDM Comprex 1991)
 * Used in JDM Capellas (1987–1991), introduced in June 1992 European Mazda 626

RF-T DI (2.0 DiTD)
A direct-injection turbo version 101 bhp with four valves per cylinder, called the DiTD was introduced in the June 1998 Mazda 626 Wagon 2.0 DiTD. Engine has SOHC valve train with rocker arms and mechanically adjusted screws (no hydraulic valve lifters), with Denso V5 rotary injection pump and Denso PCM.

There were three power versions:
 * 66 kW at 4000 rpm with maximum torque 220 Nm at 1800 rpm
 * 74 kW at 4000 rpm with maximum torque 220 Nm at 1800–2200 rpm
 * 81 kW at 4000 rpm with maximum torque 230 Nm at 2000–2600 rpm

Engines were mounted in:
 * Mazda 323 5D hatchback and 4D sedan since August 1998 (66 kW version)
 * Mazda 323 5D hatchback and 4D sedan since May 2001 (74 kW version)
 * Mazda 626 Capella since June 1998 (74 kW version)
 * Mazda 626 Capella since October 2000 (81 kW version)
 * Mazda Premacy as DE 2.0L (DIREC-D) Euro III

2002 (2.0 MZR-CD)
Next evolution of RF engine with common rail direct-injection was introduced in June 2002 European version Mazda 6 with output power 89 kW or 100 kW (both at 3500 rpm), depending on engine version (only difference between the two diesel drivetrains is the shape of their respective torque curves, the larger of the two engines being flatter). 2002 RF Mazda diesel engine includes new dual-mass flywheel and common rail Denso injection with max. pressure of 1800 bar, pilot and post-injection for operating smoothness and soft and acoustically unobtrusive combustion. Both versions have same compression ratio 18.3:1. Torque output (both versions have same maximum 310 Nm at 2000 rpm), fuel efficiency and NOx emissions were improved by using: Combined fuel economy is achieving 6.5 L/100 km and emission rating Euro Stage III (D4) with on a regular basis mounted catalytic converter with Lambda probe and exhaust-gas recirculation system (EGR). Engines were mounted in (in order of appearance):
 * expansive vertical vortex combustion (EVVC), which combines a special piston surface design, with ingenious fuel distribution, to produce a vertical swirl in the combustion chamber
 * variable turbine geometry (VNT) turbocharger
 * 1st generation Mazda 6 Atenza (both versions) since June 2002
 * 2nd generation Mazda MPV (only High Power version) since June 2002

2005 (2.0 MZR-CD)
Production of improved, cleaner and more powerful common rail direct-injection turbocharged version of Mazda RF engine was started with July 2005 Mazda 6 facelift. This drivetrain still has most of typical features of its predecessor including belt-driven SOHC valve train with rocker arms and mechanically adjusted screws (in contrast to frequently mismatched, absolutely different ZSD or PSA DW10 Ford Duratorq engines). Mazda applied several technologies to this MZR-CD engine to achieve Euro Stage IV: There were two power versions of this engine: Standard Power 89 kW at 3500 rpm and a maximum torque of 320 Nm at 2000 rpm, High Power 105 kW at 3500 rpm and a maximum torque of 360 Nm at 2000 rpm. Both versions come with a DPF system standard, which traps soot in a coated ceramic filter. As soon as the filter's storage capacity is exhausted, exhaust gas temperature is raised for a short period (using only diesel pre and post-injection techniques, not any fuel burner additive) and the particles burn off. As a result, the RF 2005 engines emit 80 percent less particulate matter than required by Euro Stage IV standards. Engines were mounted in (in order of appearance):
 * new variable geometry turbocharger has 14 percent less inertial moment and is more compact in design (achieved, for instance, by a shorter distance between the exhaust gas inlet and the turbine shaft)
 * Denso's 1800 bar second generation common rail system that, depending on driving conditions, uses multi-stage injection of up to nine times per cycle with six-hole injectors
 * relatively low compression ratio of 16.7:1 improves power output and torque(???), while at the same time helping to lower combustion noise and emissions
 * emissions were reduced by lowering the engine's combustion temperature
 * O2 sensor constantly measures residual oxygen in the exhaust gases and this information is sent to 32-bit powertrain control module (PCM), which continuously optimizes the air/fuel mix
 * 1st generation Mazda 6/Atenza (both versions) since July 2005
 * Mazda 5/Premacy (both versions) since January 2006
 * 1st generation Mazda 3/Axela (only High Power version) since March 2007

2007 (2.0 MZR-CD)
Slightly detuned 103 kW at 3500 rpm and 330 Nm at 2000 rpm) version of RF 2005 engine was introduced in November 2007's second generation Mazda 6. Newly calibrated powertrain control module mapping resulted in better drivability, fuel efficiency and emission performance. This engine has changed layout of the intake/exhaust, with more efficient EGR cooler, better DPF and combined fuel consumption 5.6 L/100 km, less than its predecessor. Engine was mounted in (in order of appearance):
 * 2nd generation Mazda 6 Atenza since November 2007

R2
A diesel variation of the 2184 cc F2 which shares its 86x94 mm bore and stroke. Displacement: 2184 cc Power net:(Black Top) 51.5 kW (JIS net) at 4050 rpm Torque: 142 Nm - at 2500 rpm Power net:(Silver Top) 58.1 kW (JIS net) at 4050 rpm Torque: 171 Nm - at 2500 rpm

Applications:
 * 1987–1991 Mazda B-series
 * 1990–1997 Asia Rocsta
 * 1990–1997 Kia Bongo/Besta

2008 (2.2 MZR-CD)
New generation RF-based MZR-CD 2.2-litre turbo diesel engine (stroke was lengthened by 8 mm in comparison to the MZR-CD 2.0 RF engine) was introduced in November 2002 and this powertrain is planned to totally replace RF 2007 and RF 2005 in the future with three (or more, see below) power versions:
 * MZR-CD 2.2 High Power: produces 136 kW at 3500 rpm and 400 Nm of torque from 1800 to 3000 rpm, with combined fuel efficiency in 2nd generation Mazda 6: 5.6 L/100 km/5.7 L/100 km and CO2 emissions of 149/152 g/km (sedan and hatchback/wagon).
 * MZR-CD 2.2 Mid Power: produces 120 kW at 3500 rpm and 360 Nm of torque from 1800 to 3000 rpm, with combined fuel efficiency in 2nd generation Mazda 6: 5.5 L/100 km/5.6 L/100 km and CO2 emissions of 147/149 g/km.
 * MZR-CD 2.2 Low Power: produces 92 kW at 3500 rpm and 310 Nm of torque from 1800 to 2600 rpm, with combined fuel efficiency in 2nd generation Mazda 6: 5.5 L/100 km/5.6 L/100 km and CO2 emissions of 147/149 g/km.
 * MZR-CD 2.2 Standard Power in 2nd generation Mazda 3 Axela (internal code BL): produces 110 kW at 3500 rpm and 360 Nm of torque from 1800 to 2600 rpm, with combined fuel efficiency 5.6 L/100 km and CO2 emissions of 144 g/km.
 * MZR-CD 2.2 with Selective Catalytic Reduction system in 2009 facelift Mazda CX-7 produces 127 kW at 3500 rpm and 400 Nm of torque at a low 2000 rpm, with combined fuel efficiency 7.5 L/100 km and CO2 emissions of 199 g/km.

2.2 MZR-CD engine features:
 * Denso HP3-based common rail with system injection pressure increased to 2000 bar
 * common rail injectors that have 10 spray small 0.119 mm holes (instead of the 6 used on the MZR-CD 2.0) and higher response solenoids
 * low compression ratio of 16.3:1, made possible with highly atomizing injectors
 * VNT turbocharger with curved vanes and abradable seal
 * chain-driven DOHC valve system
 * aluminium lower block combined with low-friction, front chain-drive balancer shaft
 * newly developed, high thermal resistance DPF system with global-first ceramic support matrix structure
 * newly developed EGR cooler
 * Euro Stage V emission rating
 * new Selective catalytic reduction (SCR) system with AdBlue additive significantly reduces emissions (currently only in Mazda CX-7, in special 15.5 L tank located under the luggage compartment, lasts over 20000 km under normal driving conditions)
 * electro-hydraulic power-assisted steering

Engine is mounted in (in order of appearance): Engine is planned for (in order of appearance):
 * 2nd generation Mazda 6 Atenza since November 2008 (High, Mid and Low power versions), MZR-CD 2.0-litre turbo diesel remains in the line-up in some markets
 * 2nd generation Mazda 3 Axela (High and Standard power versions)
 * 1st generation 2009 facelift Mazda CX-7
 * 1st generation Mazda 5 Premacy (High, Mid and Low power versions)

Mazda 2.2 MZR-CD R2 engine has no relation to the family of belt-driven PSA DW12B twin turbo engine.

SH 2.2 SKYACTIV-D
Introduced at the 41st Tokyo Motor Show (2009)
 * high fuel pressure common-rail system that controls piezo injectors
 * aluminium block
 * significantly reduced size and weight of reciprocating and rotating parts (aluminum block, lightweight pistons and connecting rods)
 * similar weight to the petrol version
 * wide-range, high volume EGR
 * two stage (Dual Stage two turbo) twin-turbocharger with high turbopressure over a broader engine rev range
 * PM oxidation catalyst-supported diesel particulate filter (DPF) with shorter regeneration
 * 20 percent better fuel efficiency than Mazda's R2 2.2 MZR-CD
 * These engines are subjected to a number of recalls world-wide relating to leaking fuel injectors seals resulting in carbon build-up causing vacuum pump and turbo charger failure.

WL-T 2.5

 * 2.5 Diesel Turbo 2499cc
 * 110 PS at 3500 rpm
 * 265 Nm at 2000 rpm
 * Found in Mazda Bounty (UN Chassis Code), Mazda Bongo Friendee, Ford Courier Ford Freda and Ford Ranger 1998 - 2006

Y4
Mazda Y4 engine (called 1.4 MZ-CD or 1.4 CiTD) is a rebadged PSA DV4 engine, produced in the PSA engine plant in Trémery or Ford's engine plant in Dagenham. These 1399 cc SOHC 8-valve turbo diesel engines with bore and stroke of 73.7x82 mm, and compression ratio 18.0:1 were shipped to Valencia (now in the Mazda 2 DE to Hiroshima or Hofu plants) and mounted into Mazda 2 DY and Mazda 2 DE together with a 5-speed manual transmission. The engine's maximum power is 50 kW at 4,000 rpm, maximum torque 160 Nm at 1,750 rpm.

Engine features:
 * SOHC belt-driven
 * aluminium cylinder block with cast iron liners
 * dual-mass flywheel
 * drive by wire accelerator pedal
 * VNT turbocharger, without intercooling
 * Euro Stage III emission rating; Euro Stage IV with DPF system, catalytic additive in separate 1.8 L tank, refreshed every 60000 km

Y6
The Mazda Y6 engine (called 1.6 MZ-CD or 1.6 CiTD) is a rebadged PSA DV6 engine, produced in the PSA engine plant in Trémery and the Ford engine plant in Dagenham. This 1560 cc DOHC 16-valve turbo diesel engine has a bore and stroke of 75x88.3 mm, and a compression ratio of 18.3:1. The engines are shipped to Hiroshima and mounted into the Mazda 3 (Axela) and Mazda 2 DE in three versions coupled to 5 or 6-speed manuals (Getrag-Ford developed, J65M-R) or 4-speed automatic "Activematic" transmission:
 * 66 kW at 4000 rpm, 215 Nm at 1750 rpm
 * 66 kW at 4000 rpm, 205 Nm at 2000 rpm mounted in Mazda 2 DE
 * 81 kW at 4000 rpm, 240 Nm at 1750 rpm

Engine features:
 * DOHC belt-driven
 * aluminium cylinder block with cast iron liners
 * dual-mass flywheel
 * second generation Bosch common rail injection system with pilot injection phase and 1600 bar pressure
 * 6-hole injectors
 * Bosch EDC16 powertrain control module
 * drive by wire accelerator pedal
 * Garrett GT15 (VNT15) turbocharger
 * large front mount intercooler (larger than 2.0 MZR-CD)
 * Euro Stage III emission rating (Euro Stage IV with DPF system, catalytic additive in separate 1.8 L tank, refreshed every 60000 km

Inline six

 * YA - 3783 cc, 110 PS - Mazda Boxer (EYA)
 * ZB - 4052 cc - Mazda Boxer (EZA), Mazda Titan (2nd generation), Asia/Kia Combi
 * ZC - 5494 cc -