Skyactiv#2.5 L

The precursor of Skyactiv, which featured a Mazda Sky-G 2.3-liter direct injection petrol engine, a Mazda Sky-D 2.2-liter diesel engine, a Sky-Drive automatic transmission, a Mazda Kiyora with Sky-G 1.3 engine and Sky-Drive automatic transmission, was unveiled at the 40th Tokyo Motor Show in 2008.{{cite web |url=http://www.mazda.com/publicity/release/2009/200909/090929a.html| title=MAZDA: Mazda Global Premiere of Eco-Friendly and Powerful Next Generation 'SKY-G' and 'SKY-D' Engines at Tokyo Motor Show 2009 - News Releases |publisher=Mazda |access-date=13 July 2018}}{{cite web |url=http://www.mazda.co.jp/corporate/publicity/release/2009/200909/090929a.html |title=【MAZDA】ニュース |publisher=Mazda |access-date=13 July 2018}} The Skyactiv concept features a revised suspension geometry, improved automatic and manual transmission, and various improvements to Mazda's L- engine such as direct injection, upgraded exhaust manifold, increased compression ratio for cleaner burn and higher thermal efficiency, among other improvements. Mazda's previous chassis for the Mazda3 and Mazda6 were carried over to the new vehicles.

{{Infobox automobile engine

| name = Skyactiv-G

| image = Mazda_SKY-G_in_Tokyo_Motor_Show_2009.jpg

| aka = {{unbulleted list | Sky-G | Skyactiv-P }}

| production = 2012-present

| predecessor = {{unbulleted list | Mazda Z engine | Mazda L engine }}

| successor =

| configuration = {{unbulleted list |Inline-four | Inline-six }}

| displacement = {{unbulleted list | {{convert|1298|cc|cuin|abbr=on}} | {{convert|1496|cc|cuin|abbr=on}} | {{convert|1998|cc|cuin|abbr=on}} | {{convert|2488|cc|cuin|abbr=on}} |

{{convert|3283|cc|cuin|abbr=on}} }}

| bore = {{unbulleted list | {{convert|71.0|mm|in|abbr=on}} | {{convert|74.5|mm|in|abbr=on}} | {{convert|83.5|mm|in|abbr=on}} | {{convert|89.0|mm|in|abbr=on}} | {{convert|86.0|mm|in|abbr=on}} }}

| stroke = {{unbulleted list | {{convert|82.0|mm|in|abbr=on}} | {{convert|85.8|mm|in|abbr=on}} | {{convert|91.2|mm|in|abbr=on}} | {{convert|100.0|mm|in|abbr=on}} | {{convert|94.2|mm|in|abbr=on}} }}

| block = Aluminum

| head = Aluminum

| valvetrain = DOHC

| compression = {{unbulleted list | 13.0:1 | 14.0:1 | 10.5:1 (2.5 L I4 Turbo)| 12.0:1 (3.3 L I6 Turbo)}}

| turbocharger = Single with dynamic pressure anti-lag device and air-to-air or air-to-liquid intercooler (PY-VPTS)

| fuelsystem = Petrol direct injection

| management =

| fueltype = Petrol / Petrol Flexifuel (Some Version)

| oilsystem = Wet sump

| coolingsystem = Water-cooled

| length =

| width =

| height =

| weight =

}}

The Skyactiv-G{{cite web|url=http://www.autoblog.com/2010/09/01/report-prototype-mazda3-with-2-0l-sky-g-engine-gets-30-40-mpg/|title=Prototype Mazda3 with 2.0L Sky-G engine gets 30/40 mpg|website=Autoblog.com|date=September 2010 |access-date=13 July 2018}} is a family of direct injection petrol engines. The engine compression ratio is 14:1, except in the U.S. market where it is 13:1 so the engine can operate on regular instead of premium gasoline; the lower compression ratio reduces torque and fuel economy by 3 to 5 percent.{{cite magazine |url=http://www.caranddriver.com/news/mazda-engine-news-mazda-sky-gas-and-diesel-details |title=Mazda Skyactiv-G and Skyactiv-D Engines in Detail |magazine=Car and Driver |date=30 August 2010 |access-date=13 July 2018}} To suppress engine knock with the high compression, residual gas is reduced{{dubious|date=December 2024}} by using a 4-2-1 engine exhaust system, implementing a piston cavity, and optimizing fuel injection.{{Citation needed|date=December 2024}} Combustion duration is shortened by intensifying air flow, increasing injection pressure, and using multi-hole injectors.{{Citation needed|date=December 2024}}

This engine family uses all-aluminum construction with chain-driven dual overhead camshafts, variable valve timing, gasoline direct injection, and direct ignition. The engines meet US ULEV emission standards.{{Citation needed|date=December 2024}}

The Skyactiv-G 1.3 (P3-VPS) is a naturally aspirated engine of {{convert|1298|cc|cuin|1|abbr=on}} displacement, with a {{convert|71|mm|in|abbr=on}} bore and an {{convert|82|mm|in|abbr=on}} stroke. It was unveiled at the 2011 Automotive Engineering Exposition.{{cite web |url=http://www.mazda.com/publicity/release/2011/201105/110518a.html |title=Mazda Develops Highly Efficient "SKYACTIV-G 1.3" Direct-Injection Gasoline Engine - News Releases |publisher=Mazda |access-date=13 July 2018}}{{cite web |url=http://www.mazda.co.jp/corporate/publicity/release/2011/201105/110518a.html |title=【MAZDA】ニュース |publisher=Mazda |access-date=13 July 2018}}

Five Mazda engineers were awarded the 2011 Japan Society of Mechanical Engineers Medal on April 20, 2012 for their development of this engine.{{cite web |url=http://integrityexports.com/2012/04/20/mazda-engineers-win-medal-for-skyactiv-tech/ |title=Skyactiv Tech Wins 2011 Japan Society of Mechanical Engineers Medal |website=Integrity Exports |access-date=13 July 2018}} It was first used in the Mazda Demio 1.3-Skyactiv—the only Skyactiv engine to be paired with a CVT.{{cite web |url=http://www.mazda.com/publicity/release/2011/201106/110609a.html |title=Pre-Orders Start for Facelifted Mazda Demio in Japan - News Releases |publisher=Mazda |access-date=13 July 2018}}{{cite web |url=http://www.mazda.co.jp/corporate/publicity/release/2011/201106/110609a.html |title=【MAZDA】ニュース |publisher=Mazda |access-date=13 July 2018}}

It is rated at {{convert|62|kW|PS hp|abbr=on}} and {{convert|113|Nm|0|abbr=on}}.{{cite magazine |url=http://blog.caranddriver.com/mazda-2-with-new-1-3-liter-skyactiv-g-engine-gets-claimed-50-percent-mileage-boost/ |title=Mazda 2 with New 1.3-liter SKYACTIV-G Engine Gets Claimed 50-Percent Mileage Boost |magazine=Car and Driver |access-date=13 July 2018}}

Applications:

• 2011–present Mazda Demio/Mazda2

The Skyactiv-G 1.5, designated (PR-VP RS) for RWD applications and (P5 VPS F-P5) for FWD applications, is a {{convert|1496|cc|cuin|1|abbr=on}} naturally aspirated engine with a {{convert|74.5|mm|in|abbr=on}} bore and an {{convert|85.8|mm|in|abbr=on}} stroke. It was introduced in the 2014 Mazda3 for the Asian and European markets. It develops {{convert|85|kW|hp|abbr=on}} at 6,000 rpm and {{convert|150|Nm|lbft|0|abbr=on|order=flip}} at 4,000 rpm, as configured for certain Asian markets. It greatly improved performance and fuel economy over the MZR 1.5 engine of the previous model.{{Citation needed|date=December 2024}}

Applications:

• 2014–present Mazda Axela/Mazda3
• 2014–present Mazda Demio/Mazda2
• 2016–present Mazda Roadster/MX-5
• 2016–2020 Mazda2/Scion iA/Toyota Yaris (North America)
• 2020–present Mazda CX-3

The Skyactiv-G 2.0 (PE-VPS) was the first engine in the Skyactiv-G family to be produced.

This naturally aspirated engine has a displacement of {{convert|1998|cc|L cuin|1|abbr=on}}, with a bore and stroke of {{convert|83.5x91.2|mm|in|abbr=on}}. The U.S. version has a compression ratio of 13.0:1 producing {{cvt|155|bhp|kW PS|0|disp=flip}} at 6000 rpm and {{convert|200|Nm|0|abbr=on}} of torque at 4600 rpm.{{cite web|url=https://www.carfolio.com/specifications/models/car/?car=511236|website=carfolio.com|title=Mazda MX-5 Miata RF Club, 2017 MY US|date=February 22, 2017|access-date=July 27, 2018}} In some markets, a Flexifuel variant capable of running on E85 is available, producing {{cvt|162|bhp|kW PS|0|disp=flip}} and {{convert|210|Nm|0|abbr=on}} of torque.

Compared to the engine in the 2011 Mazda3 (with an automatic transmission), fuel economy improved from {{convert|10.2|L/100km|mpgus|abbr=on}} to {{convert|8.4|L/100km|mpgus|abbr=on}} in city driving, and from {{convert|7.1|L/100km|mpgus|abbr=on}} to {{convert|5.8|L/100km|mpgus|abbr=on}} in highway driving.{{cite news |title=Turning Up the Pressure to Keep Gas in the Game |url=https://www.nytimes.com/2011/11/13/automobiles/turning-up-the-pressure-to-keep-gas-in-the-game.html?_r=1&ref=science |quote=But the most daring advance is the 2-litre Skyactiv-G gasoline engine. That 4-cylinder power plant made its North American debut in the 2012 Mazda 3, where it raised the fuel economy rating to 8.5 L/100km in town and 5.8 on the highway with an automatic transmission, from 24/33 for the 2011 model sedan with a 2-litre engine. ... |newspaper=New York Times |date=11 November 2011 |access-date=14 November 2011}}

File:Mazda Skyactiv-G 2.0 PE-VPS.jpg

Applications:

• 2012–present Mazda Axela/Mazda3
• 2013–present Mazda Atenza/Mazda6
• 2013–present Mazda CX-5
• 2013–2018 Mazda Biante
• 2013–2015 Mazda Premacy/Mazda5
• 2015–present Mazda CX-3
• 2016–present Mazda Roadster/MX-5
• 2016–2024 Mazda CX-4 (China)
• 2019–present Mazda CX-30
• 2023–present Mazda CX-50 (China)

The Skyactiv-G 2.5 (PY-VPS) is a {{convert|2488|cc|cuin|abbr=on}} naturally aspirated engine first used in the 2013 Mazda 6. It has an {{convert|89.0|mm|in|abbr=on}} bore and a {{convert|100.0|mm|in|abbr=on}} stroke.

The U.S. version with 13:1 compression produces {{cvt|187|hp|kW PS|disp=flip}} at 6,000 rpm and {{convert|186|lbft|Nm|abbr=on|order=flip}} at 4,000 rpm.{{cite web |url=https://news.mazdausa.com/2020-07-08-2021-mazda3-well-suited-with-added-powertrains |title=2021 MAZDA3: WELL-SUITED WITH ADDED POWERTRAINS |publisher=Mazda USA |date=8 July 2020}} In 2023, the engine's power output was increased to {{cvt|191|hp|kW PS|disp=flip}}, although the torque remained the same.{{Cite web |title=2023 Mazda3 Review {{!}} The premium performance sweet spot |url=https://www.autoblog.com/article/2023-mazda3-review/ |access-date=2023-05-02 |website=Autoblog |date=29 August 2022 |language=en}}

Skyactiv-G 2.5 engines manufactured from 2018 on feature cylinder deactivation to improve fuel economy.{{cite web |url=https://insidemazda.mazdausa.com/the-mazda-way/technology/mazdas-new-cylinder-deactivation/ |title=Mazda's New Technology Makes Skyactiv-G Even Better |date=20 December 2017 |publisher=Mazda |access-date=2020-12-21}}

The turbocharged (PY-VPTS) version has a 10.5:1 compression ratio,{{cite web |url=https://www.mazdausa.com/static/manuals/2020/cx-9/contents/10020100.html?kw=specifications&hw=specifications |title=2020 Mazda CX-9 Digital Owner's Manual |publisher=Mazda USA |access-date=28 October 2020}} and produces {{cvt|250|hp|kW PS|disp=flip}} at 5,000 rpm and {{convert|320|lbft|Nm|abbr=on|order=flip}} at 2,500 rpm on 93 AKI octane (98 RON) gasoline, and {{cvt|227|hp|kW PS|disp=flip}} at 5,000 rpm and {{cvt|310|lbft|Nm|order=flip}} at 2,000 rpm on 87 AKI octane (91 RON).{{cite web|url=https://news.mazdausa.com/2020-07-08-2021-Mazda3-2-5-Turbo-Refined-Performance|title=2021 MAZDA3 2.5 TURBO: REFINED PERFORMANCE|date=8 July 2021|website=Mazda USA}} Maximum boost pressure is {{cvt|17.4|psi|disp=flip}}. A specially-designed set of passages and butterfly valves act at low engine RPMs to force exhaust gases through smaller orifices, spooling the turbo more quickly and minimizing turbo lag. The engine has a unique 4-3-1 exhaust manifold to improve exhaust scavenging and a cooled exhaust gas recirculation system, both designed to reduce combustion chamber temperatures and allow for increased boost with better fuel economy.{{cite magazine |url=https://www.wardsauto.com/engines/mazda-s-innovative-4-cyl-engine-pulls-big-v-6 |title=Mazda's Innovative 4-Cyl. Engine Pulls Like Big V-6 |first=Gary |last=Witzenburg |magazine=Ward's |date=2017-11-09 |access-date=2021-06-05}} On the CX-9 and CX-5 vehicles, the engine has an air-to-air intercooler, while on the Mazda3 and CX-30, an air-to-liquid intercooler is used instead, integrated into the intake manifold to save space.

For the CX-60, the engine is paired with a plug-in hybrid system which includes a {{cvt|134|hp|kW PS|0|disp=flip}} electric motor and a 17.8 kWh lithium-ion battery. Combined outputs are {{cvt|323|hp|kW PS|disp=flip}} and {{cvt|500|Nm|kgm lbft|abbr=on|sigfig=3}}.

Applications:

• 2013–present Mazda Atenza/Mazda6
• 2013–present Mazda CX-5
• 2014–present Mazda Axela/Mazda3
• 2016–2024 Mazda CX-4
• 2016–present Mazda CX-9
• 2018–present Mazda CX-8
• 2019–present Mazda CX-30
• 2022–present Mazda CX-50
• 2022–present Mazda CX-60{{cite web |url=https://www.carexpert.com.au/car-news/2023-mazda-cx-60-officially-revealed |title=2023 Mazda CX-60 officially revealed |first=James |last=Wong |website=CarExpert |date=8 March 2022 |access-date=9 March 2022}}
• 2022–present Mazda CX-60 PHEV
• 2023–present Mazda CX-90 PHEV{{Cite web |date=2023-02-01 |title=2024 Mazda CX-90 debuts - new three-row SUV; 3.3L turbo mild hybrid inline-six, 2.5L PHEV; standard AWD - paultan.org |url=https://paultan.org/2023/02/01/2024-mazda-cx-90-debuts/ |access-date=2023-02-02 |website=Paul Tan's Automotive News |language=en-US}}

File:Skyactiv-G3.3 25CX70 NoCover.jpg

The Skyactiv-G 3.3 (H3T) is a longitudinal 3.3-litre turbocharged inline-six petrol engine with an {{convert|86.0|mm|in|abbr=on}} bore and {{convert|94.2|mm|in|abbr=on}} stroke. It was introduced in the Mazda CX-90 in 2023, in two versions. They produce either {{cvt|280|hp|kW hp PS|0|order=out}} and {{cvt|450|Nm|lbft|0}} or {{cvt|340|hp|kW hp PS|0|order=out}} and {{cvt|500|Nm|lbft|0}}, respectively.{{Cite web |last=Anderson |first=Brad |date=2022-10-13 |title=2023 Mazda CX-60 Gets Three Engines In Australia, 3.3L Turbo Straight-6 Makes Only 280HP |url=https://www.carscoops.com/2022/10/mazda-cx-60-heading-to-australia-with-three-electrified-powertrains/ |access-date=2022-10-14 |website=Carscoops |language=en-US}} The engine is available with a lower and a higher output, with slight differences in programming and requiring premium gasoline for the higher output option. If the high output version (for the CX-90 Turbo S) is filled with regular gasoline, power drops to {{cvt|319|hp|kW hp PS|0|order=out}}.{{cite web | url = https://www.caranddriver.com/reviews/a45873287/2024-mazda-cx-90-turbo-s-reliability-maintenance/ | archive-url = https://web.archive.org/web/20241203193607/https://www.caranddriver.com/reviews/a45873287/2024-mazda-cx-90-turbo-s-reliability-maintenance/ | archive-date = 2024-12-03 | title = Our Long-Term Mazda CX-90 Puts the "Um" in "Premium" | work = Car and Driver | first = Greg S. | last = Fink | date = 2024-10-07 | publisher = Hearst Autos, Inc. }}

• 2023–present Mazda CX-60
• 2023–present Mazda CX-70/CX-90

{{Infobox automobile engine

| name = Skyactiv-X

| image = Mazda SkyActiv-X at the Tokyo Motor Show 2019.jpg

| aka = {{unbulleted list | Sky-X }}

| production = 2019-present

| predecessor =

| successor =

| configuration = {{unbulleted list | Inline-four | Inline-six }}

| displacement = {{unbulleted list | {{convert|1998|cc|cuin|abbr=on}} | {{convert|2998|cc|cuin|abbr=on}} }}

| bore = {{convert|83.5|mm|abbr=on}}

| stroke = {{convert|91.2|mm|2|abbr=on}}

| block = Aluminum

| head = Aluminum

| valvetrain = DOHC

| compression = 16.3:1

| fuelsystem = Petrol direct injection

| supercharger = Lean Supercharged Operation

| management =

| fueltype = Petrol

| oilsystem = Wet sump

| coolingsystem = Water-cooled

| length =

| width =

| height =

| weight =

}}

Skyactiv-X is the first commercial petrol engine to use homogeneous charge compression ignition (HCCI), in which the fuel-air mixture ignites spontaneously when compressed by a smaller, separately ignited charge of fuel. This allows it to reach a compression ratio of 16:1, an improvement over the 14.0:1 ratio of the Skyactiv-G. The engine can operate much leaner than a conventional spark ignition engine, reducing fuel consumption and emissions.{{cite web |url=http://www2.mazda.com/en/publicity/release/2017/201708/170808a.html |title=Mazda Announces Long-Term Vision for Technology Development, 'Sustainable Zoom-Zoom 2030' - News Releases |publisher=Mazda |access-date=13 July 2018}}{{cite web |url=http://www2.mazda.com/en/next-generation/technology/ |title=Next-Generation Skyactiv-X gasoline engine |publisher=Mazda |access-date=2 April 2018}}

This engine targets 20-30% greater fuel efficiency by utilising HCCI technology. In order to handle ignition problems caused by compression ignition, each cylinder also incorporates a spark plug featuring Spark Controlled Compression Ignition (SPCCI) technology.{{Citation|last=Engineering Explained|title=Mazda Creates The Holy Grail Of Gasoline Engines - HCCI SkyActiv-X|date=2017-08-13|url=https://www.youtube.com/watch?v=9KhzMGbQXmY|access-date=2017-08-13}}{{Better source needed|Source mostly summarizes Mazda press release.|date=February 2023}} A small Roots-type supercharger further expands the compression ignition operating window by feeding more air into the engine, leaning out the mixture sufficiently for compression ignition even at higher speeds.{{cite magazine |url=https://www.caranddriver.com/reviews/a15081390/2019-mazda-3-with-skyactiv-x-compression-ignition-gas-engine-prototype-drive-review/| title=Driving Mazda's Next Mazda 3 with Its Skyactiv-X Compression-Ignition Gas Engine |magazine=Car and Driver |access-date=29 January 2021}}

SPCCI works by drawing in a lean, homogeneous air-fuel mixture, it then compresses the mixture until it approaches the point at which it would spontaneously detonate. A second injector then adds a secondary charge of fuel directly on the spark plug. This secondary charge is ignited by the spark plug, causing the cylinder pressure to very quickly rise to a point where the rest of the fuel undergoes compression ignition. The presence of the spark plug allows the engine to also operate as a spark-ignition engine under some operating conditions, such as high-speed high-load situations. Revealed June 5, 2019, the output is {{cvt|132|kW|PS hp|0}} and {{cvt|224|Nm|lbft|0}}.

Mazda is developing an inline-six variant of the Skyactiv-X, with displacements of 3.0 and 3.3 liters and a rear-wheel-drive layout. It was believed that production of the new engine would begin in 2022 with the Mazda CX-60 and possibly a fourth generation rear-wheel drive Mazda6.{{cite web |url=https://www.autoblog.com/2021/01/07/mazda-inline-six-rear-wheel-drive-platform/ |title=Mazda's upcoming inline-six, rear-wheel-drive platform detailed by suppliers |first=Ben |last=Hsu |website=Autoblog |date=7 January 2021 |access-date=27 May 2021}}{{cite magazine |url=https://www.caranddriver.com/news/a32109038/mazda-6-rwd-confirmed-2022/ |title=Next-Gen Mazda 6 Switching to RWD Layout, Inline-Six Power |first=Jared |last=Gall |magazine=Car and Driver |date=13 April 2021 |access-date=27 May 2021}} However, according to Road & Track magazine, in the March 2022 edition of Autocar magazine Mazda Europe's Development & Engineering Senior Manager Joachim Kunz stated that there were no plans for a Mazda rear drive sedan, since Mazda was prioritizing SUV sales.{{cite magazine |url=https://www.roadandtrack.com/news/a39493743/rear-drive-mazda-6-not-happening/#:~:text=The%20old%20Mazda6%20was%20discontinued,company's%20new%20rear%2Ddrive%20platform. |title=The Rear-Drive I-6 Mazda6 Isn't Happening |first=Chris |last=Perkins |magazine=Road & Track |date=21 March 2022 |access-date=21 July 2022}}

Applications:

• 2019–present Mazda3
• 2019–present Mazda CX-30

{{Infobox automobile engine

| name = Skyactiv-D

| image = MAZDA SH-VPTS DIESEL 1.JPG

| aka = Sky-D

| production = 2014-present

| predecessor = Mazda R engine

| successor =

| configuration = {{unbulleted list | Inline-four | Inline-six }}

| displacement = {{unbulleted list | {{convert|1497|cc|cuin|abbr=on}} | {{convert|1759|cc|cuin|abbr=on}} | {{convert|2191|cc|cuin|abbr=on}} | {{convert|3287|cc|cuin|abbr=on}} }}

| bore = {{unbulleted list | {{convert|76|mm|in|abbr=on}} | {{convert|79|mm|in|abbr=on}} | {{convert|86|mm|in|abbr=on}} }}

| stroke = {{unbulleted list | {{convert|82.5|mm|in|abbr=on}} | {{convert|89.7|mm|in|abbr=on}} | {{convert|94.3|mm|in|abbr=on}} }}

| block = Aluminium

| head =

| valvetrain = DOHC

| compression = {{unbulleted list | 14.8:1 (1.5L / 1.8L) | 14.0:1 / 14.4:1 (2.2L) | 15.2:1 (3.3L)}}

| fuelsystem = Common rail

| management =

| fueltype = Diesel

| oilsystem = Wet sump

| coolingsystem = Water-cooled

| length =

| width =

| height =

| weight =

| manufacturer =

}}

File:MAZDA ATENZA SEDAN GJ XD L Package 03.JPG)]]

Skyactiv-D is a family of turbocharged diesel engines, designed to comply with global emissions regulations.

To eliminate the need of NOx and particulate treatment in contemporary diesel engines, the cylinder compression ratio is reduced to 14.0:1. Cold engine start is achieved via multi-hole piezo injectors with 3 programmable injection patterns, and adoption of ceramic glow plugs. Engine misfiring is prevented via variable valve lift at exhaust, which opens exhaust valves during the intake stroke, which in turn increases engine air temperature. The Skyactiv-D also uses a two-stage turbocharger, in which one small and one large turbo are selectively operated, according to driving conditions.

The Skyactiv-D 1.5 (S5-DPTS/S5-DPTR) is a {{convert|1497|cc|cuin|1|abbr=on}} engine first introduced in the fourth generation Mazda Demio/Mazda2. It features a compression ratio of 14:1.{{cite web |url=http://www2.mazda.com/en/publicity/release/2014/201406/140610a.html |title=Next Mazda2 will Feature New SKYACTIV-D 1.5 Small-Displacement Clean Diesel Engine |publisher=Mazda |date=2014-06-10 |access-date=2018-11-12}}

Applications:

• 2014–2017 Mazda Demio/Mazda2
• 2014–2018 Mazda Axela/Mazda3
• 2015–2018 Mazda CX-3

The Skyactiv-D 1.8 (S8-DPTS/S8-DPTR) is a {{convert|1759|cc|cuin|1|abbr=on}} that was introduced in the 2018 facelifted Mazda CX-3.{{cite magazine |url=https://www.autocar.co.uk/car-news/new-cars/facelifted-mazda-cx-3-arrives-first-18-skyactiv-d-engine |title=Facelifted Mazda CX-3 arrives with first 1.8 Skyactiv-D engine |first=Jimi |last=Beckwith |magazine=Autocar |date=2018-08-22 |access-date=2018-11-12}}

Applications:

• 2018–present Mazda CX-3
• 2019–present Mazda3
• 2019–present Mazda CX-30

The Skyactiv-D 2.2 (SH-VPTS/SH-VPTR) is a {{convert|2191|cc|cuin|1|abbr=on}} engine that was the first Skyactiv-D engine used in production vehicles. It was first used in the Mazda CX-5.{{cite web |url=http://www.mazda.com/publicity/release/2011/201110/111025a.html |title=Mazda to Introduce Next-Generation Clean Diesel Vehicles in Japan - News Releases |publisher=Mazda |access-date=13 July 2018}}{{cite web |url=http://www.mazda.co.jp/corporate/publicity/release/2011/201110/111025a.html |title=【MAZDA】ニュース |publisher=Mazda |access-date=13 July 2018}} In the Mazda6, it produces {{convert|129|kW|hp|0|abbr=on}} and {{convert|420|Nm|lbft|0|abbr=on}}.{{cite magazine |url=http://www.caranddriver.com/reviews/2014-mazda-6-sedan-first-drive-review |title=2014 Mazda 6 2.5L / 2.2L Diesel |magazine=Car and Driver |date=5 October 2012|access-date=13 July 2018}} An upgraded version of the Skyactiv-D was run in the 2013 Rolex Sports Car Series season and helped Mazda win the GX manufacturer's championship. The engine is slated to be used again in two Lola LMP2s in the United SportsCar Series.

Applications:

• 2012–present Mazda CX-5
• 2012–present Mazda6
• 2013–2018 Mazda3
• 2017–present Mazda CX-8

The Skyactiv-D 3.3 is a longitudinally-positioned, inline-six {{convert|3287|cc|cuin|1|abbr=on}} engine that was introduced in the Mazda CX-60 in 2022.{{Cite web |title=新型クロスオーバーSUV「MAZDA CX-60」の日本仕様を初公開 |url=https://newsroom.mazda.com/ja/publicity/release/2022/202204/220407a.html |access-date=2022-04-10 |website=マツダ ニュースリリース |date=5 May 2019 |language=ja}}

Applications:

• 2022–present Mazda CX-60
• 2023–present Mazda CX-90{{Cite web |title=GLOBAL DEBUT FOR FIRST-EVER MAZDA CX-90 |url=https://www.mazda.com.au/mazda-news/global-debut-for-first-ever-mazda-cx-90/ |access-date=2023-03-18 |website=www.mazda.com.au}}

The Skyactiv-D is the first low compression diesel in a production car, having a significantly lower compression in the first generation of 14:1 rather than typical compression ratios of 16:1 and beyond.{{Cite news|url=https://www.economist.com/babbage/2013/07/08/difference-engine-born-again|title=Difference Engine: Born again|date=2013-07-08|newspaper=The Economist|access-date=2019-05-02|issn=0013-0613}} Numerous university studies have investigated the benefits of low compression diesel for decades, with the major benefit, noted in single cylinder university tests, being a drastic reduction in NOx emissions while also reducing particulate matter and combustion noise.{{Cite journal|last1=Pacaud|first1=P.|last2=Perrin|first2=H.|last3=Laget|first3=O.|date=2009|title=Cold Start on Diesel Engine: Is Low Compression Ratio Compatible with Cold Start Requirements?|journal=SAE International Journal of Engines|volume=1|issue=1|pages=831–849|doi=10.4271/2008-01-1310 |issn=1946-3936|jstor=26308324}}{{Cite web|url=https://www.researchgate.net/publication/290496580|title=A survey on low compression ratio diesel engine|website=ResearchGate|access-date=2019-05-02}} These studies all concluded that while there were noticeable reductions in emissions, this came at the expense of difficult cold starts. Mazda resolved this in the Skyactiv-D by using piezoelectric fuel injectors with multiple nozzles that change their pattern depending on operating conditions. Furthermore, exhaust valves are left slightly open as the engine starts, causing exhaust gases to be sucked into the cylinders and help the engine warm up quickly.

The CX-5 with Skyactiv-D engines were reported to have oil levels rising earlier than expected upon release, which required owners to check the vehicle's engine oil every 1000 kilometres or every month and return to the dealer if the oil appeared over the level of the dipstick.{{cite web |url=http://news.drive.com.au/drive/motor-news/backlash-over-mazda-cx5-diesel-oil-issues-20120821-24k6w.html |title=Backlash over Mazda CX-5 diesel oil issues |website=Drive.com.au|access-date=13 July 2018 |archive-url=https://web.archive.org/web/20140306014721/http://news.drive.com.au/drive/motor-news/backlash-over-mazda-cx5-diesel-oil-issues-20120821-24k6w.html |archive-date=6 March 2014 |url-status=dead}} This procedure was initiated by Mazda worldwide as a precaution. Mazda resolved the issue in the first few months of the engine's availability via a software revision and a new dipstick with a corrected level.{{citation needed|date=May 2020}}

This was later found out to be false, the core issue being the injector seals - the method Mazda employed to secure these did not result in sufficient clamping force whenever a low temperature Diesel Particulate Filter regeneration cycle was triggered, leading to exhaust leaking into the valvecover and contaminating the oil. In addition, it also overpressurized the engine block resulting in high volumes of unmetered fuel/oil mixture re-entering the combustion chamber.{{citation needed|date=March 2025}}

The end result was either a clogged oil pickup resulting in engine failure, or a very costly feedback loop of extreme cylinder pressures, clogged up intake manifold, ash filled particulate filter, the exhaust- and intake manifold pressure sensors, and a skyrocketing fuel consumption due to near constant regeneration cycles.{{citation needed|date=March 2025}}

Mazda officially refuses to acknowledge this, except for the Australian market,{{cite web |url=https://www.aaaa.com.au/news/mazda-recalls-35000-diesel-powered-vehicles/ |title=Mazda Recalls 35,000 Diesel Powered Vehicles |website=aaaa.com.au|access-date=March 8, 2025 |archive-url=https://web.archive.org/web/20200323021009/https://www.aaaa.com.au/news/mazda-recalls-35000-diesel-powered-vehicles/ |archive-date=23 March 2020 |url-status=live}} even though there are several different Mazda Service Information documents on the issue, and resolving it. Most notably M001/007A which documents the new SHY1-13-148A injector nut/washer fastening procedure.{{citation needed|date=March 2025}}

At launch in 2012, Mazda claimed the Skyactiv-D engine would only comply with Euro 5 emission standards (NOx of 0.18 g/km), and further work was required to achieve stricter emission standards.{{citation needed|date=June 2020}}

In the aftermath of the Volkswagen emissions scandal, the Japanese government performed testing of all diesel engines produced in Japan to ensure Japanese manufacturers were not falsifying emissions as had been done by Volkswagen. It was determined that the Skyactiv-D engine was the only engine which tested at or near the standard.{{Cite magazine |url=https://www.forbes.com/sites/bertelschmitt/2016/03/05/japan-releases-nasty-diesel-test-results-germany-sits-on-them/ |title=Japan Releases (Nasty) Diesel Test Results, Germany Sits On Them |last=Schmitt |first=Bertel |magazine=Forbes |date=5 March 2016 |access-date=2 May 2019}}

At the 2019 New York Motor show, Mazda announced that it would commence pre-sales of the 2019 CX-5 with the Skyactiv-D 2.2L engine.{{Cite web |url=https://www.mazda-press.com/eu/news/2019/mazda-announces-cx-5-diesel-sales-start-in-north-america/ |title=Mazda announces CX-5 diesel sales start in North America |publisher=Mazda |access-date=2 May 2019}} Changes required to achieve the US EPA emissions standards, however, resulted in significant performance and economy penalties when compared with the Euro 5 compliant engine, as illustrated below.

The Euro stage V compliant Australian Skyactiv-D 2.2L has the following specifications:{{Cite web |url=https://www.mazda.com.au/cars/cx-5/specifications/?bodystyle=Medium%20SUV&drivetrain=AWD&grade=Akera |title=Mazda CX-5 {{!}} Specs & Prices |publisher=Mazda Australia |access-date=2 May 2019}}

• Power: {{convert|140|kW|hp|abbr=on}} @ 4,500 rpm
• Torque: {{convert|450|Nm|abbr=on}} @ 2,000 rpm
• Fuel consumption (Australian ADR 81/02)
• Combined 5.7 L/100 km (41.3 mpg)
• City 6.5 L/100 km (36.2 mpg)
• Highway 5.2 L/100 km (45.2 mpg)

The US EPA compliant US Skyactiv-D 2.2l has the following specifications:{{Cite web |url=https://www.mazdacx-5diesel.com/ |title=Reserve 2019 MAZDA CX-5 SIGNATURE SKYACTIV®-D |publisher=Mazda USA |access-date=2 May 2019}}

• Power: {{cvt|168|hp|disp=flip}} @ 4,000 rpm
• Torque: {{cvt|290|lbft|disp=flip}} @ 2,000 rpm
• EPA Estimated fuel economy:
• City {{cvt|27|mpgus}}
• Highway {{cvt|30|mpgus}}

In September 2016, Mazda recalled 130,000 vehicles in Japan over a defect that could lead to diesel engine failure.{{cite news |url=https://www.bloomberg.com/news/articles/2016-09-01/mazda-recalls-japan-diesel-models-after-846-consumer-complaints |title=Mazda Recalls Japan Diesel Models |last1=Horie |first1=Masatsugu |publisher=Bloomberg L.P. |date=1 September 2016 |access-date=1 October 2016}}

Although most problems were fixed later on, the 2.2 suffered from bad carbon build up that would block the intake manifold. Other faults include a turbo diversion valve failure that required replacement of the complete twin turbo unit.

Mazda recalled the 2012 to 2018 model year diesel Mazda 3, Mazda 6 and CX-5 because of a build-up of carbon deposits.{{cite news |url=https://www.caradvice.com.au/799235/mazda-3-6-cx-5-recalled/#:~:text=Mazda%20Australia%20has%20issued%20a,wear%20of%20certain%20engine%20components.&text=Potential%20engine%20stall%20with%20no,emit%20from%20the%20engine%20compartment |title=Mazda 3, 6, CX-5 recalled |website=CarAdvice.com |access-date=10 June 2020}}

The Skyactiv-Hybrid technology is an electric hybrid engine technology using Skyactiv-G engine with technology from Toyota's Hybrid Synergy Drive, originally licensed for use with the Sky engine for vehicles sold in 2013.{{cite web |url=http://www.mazda.com/jp/publicity/release/2010/201003/100329b.pdf |title=トヨタとマツダ、ハイブリッドシステムの技術ライセンス供与に合意 |publisher=Mazda|access-date=13 July 2018}}{{cite web |url=http://www.mazda.com/publicity/release/2010/201003/100329b.pdf |title=TMC and Mazda Agree to Hybrid System Technology License |publisher=Mazda |access-date=13 July 2018}}

The first retail Mazda Skyactiv-Hybrid vehicle, a Mazda3 Skyactiv-Hybrid with Skyactiv-G 2.0 engine with 14:1 compression, was unveiled at the 2013 Tokyo Motor Show.{{cite web |url=http://www.autoblog.com/2013/11/21/mazda-mazda3-axela-skyactiv-hybrid-cng-tokyo-2013/ |title=Mazda3 Skyactiv-Hybrid and CNG Concept shown in Japan |website=Autoblog |date=21 November 2013 |access-date=13 July 2018}}{{cite web |url=http://www.autoblog.com/2013/10/22/mazda3-cng-hybrid-tokyo-motor-show/ |title=Mazda3 to showcase CNG, Hybrid versions in Tokyo |website=Autoblog |date=22 October 2013 |access-date=13 July 2018}}

The Skyactiv-CNG engine is powered by compressed natural gas. The first retail Mazda Skyactiv-CNG prototype vehicle, a Mazda3 Skyactiv-CNG Concept, was unveiled in 2013 Tokyo Motor Show.{{cite web |url=http://www.mazda.com/jp/publicity/release/2013/201310/131021a.html |title=【MAZDA】マツダ、東京モーターショーに新型「アクセラ」を出品｜ニュースリリース |publisher=Mazda |access-date=13 July 2018}}{{cite web |url=http://www.mazda.com/publicity/release/2013/201310/131021a.html |title=MAZDA: Mazda to Exhibit All-New Mazda3 at Tokyo Motor Show - News Releases |publisher=Mazda |access-date=13 July 2018}}

The Skyactiv-R engine is Mazda's new generation rotary engine.

The Mazda RX-Vision Concept, powered by a Skyactiv-R rotary engine, was unveiled in 2015 Tokyo Motor Show.{{cite web |url=https://newsroom.mazda.com/en/publicity/release/2015/201510/151028a.html |title=Mazda Reveals Mazda RX-VISION Concept |date=5 May 2019 |publisher=Mazda |access-date=22 February 2020 |language=en}}

In 2023, Mazda unveiled the first production version of this generation of rotary engines. Used in the Mazda MX-30 R-EV, the engine provides {{cvt|75|hp|disp=flip}} at 4500rpm and has a displacement of 830 cc in a single-rotor design.{{cite web |url=https://www.automotivepowertraintechnologyinternational.com/features/tech-insider-mazda-rotary-returns.html |title=Tech Insider: Mazda, rotary returns |first=Richard |last=Aucock |website=Automotive Power Technology International |date=12 May 2023 |access-date=15 January 2024}}

e-Skyactiv is the battery-electric powertrain.{{cite web |url=https://www.mazda-press.com/eu/news/2019/mazda-mx-30--an-electric-car-for-the-environment-and-the-driver/ |title=Mazda MX-30 – An electric car for the environment…. and the driver |publisher=Mazda |date=23 October 2019 |access-date=27 May 2020}}

Applications:

• 2020–present Mazda MX-30

e-Skyactiv-G is the first Mild Hybrid powertrain.

Applications:

• 2019–present Mazda3
• 2019–present Mazda CX-30

Skyactiv-Drive is a family of automatic transmissions named SKY-Drive. Mazda rejected dual-clutch technology in automatic transmissions because the dual-clutch behavior in certain situations was sub-optimal.{{cite magazine |url=http://www.caranddriver.com/reviews/2014-mazda-6-25l-first-drive-review |title=2014 Mazda 6 2.5L – First Drive Review |first=Tony |last=Swan |magazine=Car and Driver |quote=The engineering team nixed a CVT option early on and then decided against a dual-clutch type a little later in the planning process. The reasoning: A dual-clutch automated manual delivers sportier performance, but Mazda felt it was a little abrupt for everyday urban driving. As a result, the new self-shifter is a conventional automatic, with paddle shifters available in higher trim levels. |date=February 2013 |access-date=2 April 2014}} Instead, Mazda chose to re-design the conventional automatic transmission, making the torque converter take less duty while a multi-plate clutch disengages the torque converter most of the time. The new Skyactiv automatic transmission is designed to have six or eight gears forward, one reverse gear, a short torque converter, and a clutch integrated with the torque converter.{{cite web |url=http://www.motorauthority.com/news/1064742_mazda-rejects-dsgs-redefines-automatic-transmissions-instead |title=Mazda Rejects DSGs, Redefines Automatic Transmissions Instead |first=Bengt |last=Halvorson |website=Motor Authority |publisher=High Gear Media |date=8 October 2011 |access-date=2 April 2014}}

Skyactiv-MT is a family of manual transmissions. To achieve lighter shift effort with a short shift lever stroke, the lever ratio is increased. However, to overcome the shorter internal stroke, a small module spline is used. Shift throws are reduced by 15 percent, making it the shortest shifting of any passenger car.{{Cite web|url=https://www.mazda.com/en/innovation/technology/skyactiv/skyactiv-mt/|title = Mazda: Skyactiv-Mt | Skyactiv Technology}}

To reduce weight, the triple-shafted gear train is designed with the reverse and first gears on the same shaft, and uses a shorter secondary shaft.

The Skyactiv Multi-Solution Scalable Architecture is a car platform that supports both front-wheel drive models with a transverse engine layout (under the Small Product Group) and rear-wheel drive cars with a longitudinal engine layout (under the Large Product Group).{{Cite web |title=Mazda unveils plans for EV architecture, new hybrid and PHEV models |url=https://www.carexpert.com.au/car-news/mazda-unveils-plans-for-ev-architecture-more-hybrid-and-phev-models |access-date=2023-05-07 |website=CarExpert |date=17 June 2021 |language=en}}

The Small Product Group is a front-wheel drive and all-wheel drive car platform designed with a transverse engine layout.{{Cite web |title=Mazda News: Mazda Will Add Three All-New SUV Models Added Over Next Two Years |url=https://www.theautochannel.com/news/2021/10/08/1056189-mazda-news-mazda-wiil-add-three-all-new-suv-models.html |access-date=2023-05-07 |website=www.theautochannel.com}}{{Cite web |last=Roberts |first=Graeme |date=2022-11-22 |title=New Mazda PHEV reorientates driveline |url=https://www.just-auto.com/features/new-mazda-phev-reorientates-driveline/ |access-date=2023-05-07 |website=Just Auto |language=en-US}}

Applications:

• 2019–present Mazda3
• 2019–present Mazda CX-30
• 2020–present Mazda MX-30
• 2022–present Mazda CX-50

The Large Product Group is a rear-wheel drive and all-wheel drive car platform designed with a longitudinal engine layout.{{cite web |url=https://newsroom.mazda.com/en/publicity/release/2021/202106/210617a.html |title=Mazda Announces New Technology and Product Policy towards 2030, Based on Sustainable Zoom-Zoom 2030 |publisher=Mazda |date=17 June 2021 |access-date=9 March 2022}}

Applications:

• 2022–present Mazda CX-60
• 2023–present Mazda CX-90
• 2024–present Mazda CX-70
• 2024–present Mazda CX-80

{{Reflist|30em}}

• [http://www.mazda.com/mazdaspirit/skyactiv/ Mazda SkyActiv Technology page]
• [http://www.mazda.ca/en/innovation/skyactiv-technology/ Mazda Canada SkyActiv Technology page]

{{Mazda vehicles}}

Category:Gasoline engines by model

Category:Diesel engines by model

Category:Automotive engine technologies

Category:Diesel engine technology

Category:Mazda engines

Category:Mazda Technologies

Category:Straight-four engines

Category:Straight-six engines

Category:Automatic transmission tradenames