GM small gasoline engine
| Company type | Engine series |
|---|---|
| Industry | Automotive |
| Founded | 2014 |
| Founder | Adam Opel AG, Shanghai Automotive Industry Corporation (SAIC), MG Motor, Shanghai GM (SGM), Pan-Asia Technical Automotive Center (PATAC) |
| Products | Inline three- and four-cylinder gasoline engines (1.0 L to 1.5 L displacement) |
| Parent | General Motors |
The Small Gasoline Engine (SGE) series from GM encompasses a range of compact inline three- and four-cylinder gasoline engines with displacements between 1.0 L and 1.5 L. This engine family was developed collaboratively by Adam Opel AG, Shanghai Automotive Industry Corporation (SAIC), MG Motor (MG), Shanghai GM (SGM), and the Pan-Asia Technical Automotive Center (PATAC).
Engineered to improve fuel efficiency, enhance performance, and lower emissions, the SGE incorporates lightweight materials and cutting-edge features such as gasoline direct injection, turbocharging, variable-length intake manifolds, and compatibility with alternative fuels. Its modular architecture enables component interchangeability tailored to diverse applications.
The available engine configurations include:
- Inline-three direct injection with dual continuous variable cam phasing (DI DCVCP) turbocharged, featuring a stroke,
- Inline-three port fuel injection (PFI) with stroke,
- Inline-four DI DCVCP turbocharged with stroke, and
- Inline-four PFI with stroke.
All variants share a standardized block design according to cylinder count, maintaining a consistent bore size and bore spacing. Turbocharged models utilize single-scroll, single-stage turbochargers supplied by Mitsubishi Heavy Industries.
To reduce noise, vibration, and harshness (NVH), the direct injection fuel rail is mounted using bushings that dampen injector noise. GM reports that the 1.0-liter turbo version operates 25% more quietly than the comparable Ford engine, while the 1.4-liter variant achieves up to a 50% noise reduction compared to VW/Audi counterparts. Other NVH mitigation measures include a bed-plate cylinder block for enhanced rigidity, a strengthened aluminum cam cover, and an integrated balance shaft in three-cylinder models to ensure smoother idling.
Turbocharged engines provide 90% of their maximum torque within the 1500–5000 rpm range, reaching peak horsepower between 5600 and 6000 rpm. The compact Mitsubishi Heavy Industries turbochargers are positioned close to the cylinders via integrated exhaust manifolds within the cylinder heads to deliver rapid boost response.
Constructed predominantly from aluminum combined with composite intake manifolds, these engines achieve significant weight reductions—compared to earlier 1.4-liter turbo engines used in the Cruze—while also being lighter than VW’s 1.4-liter turbo units. GM specifies the fully assembled engine weight at .
The SGE made its debut in the 2014 Opel Adam, with initial production launching at the facility in Szentgotthárd, Hungary. Manufacturing operations later expanded to plants located in Changwon, South Korea; Toluca, Mexico; Spring Hill, Tennessee; Flint, Michigan; and Shanghai, China. By 2018, this engine family had supplanted three former GM engine lines (Daewoo S-TEC engine, GM Family 0 engine, and GM Family 1 engine) across numerous brands and global markets.
In North America, assembly was handled by Hirata Corporation at its powertrain plant situated in Kumamoto, Japan.
LV7
The LV7 represents a naturally aspirated SGE variant with multi-point fuel injection and a displacement of 1.4 L. It features a bore of , a stroke of , resulting in its total capacity. This engine operates with a compression ratio of 10.6:1 and is designed to run on regular unleaded fuel. Production takes place in Changwon, South Korea.
| Year(s) | Model | Power | Torque |
|---|---|---|---|
| 2016–2022 | Chevrolet Spark | 73 kW (98 hp) at 6200 rpm | 128 N⋅m (94 lb⋅ft) at 4400 rpm |
LE2
The LE2 represents a 1.4 L turbocharged SGE engine variant with direct injection, characterized by a bore and stroke measuring , resulting in a total displacement of . It operates with a compression ratio of 10.0:1 and utilizes regular gasoline as fuel. Certain versions are equipped with an automatic start-stop feature.
| Year(s) | Model | Power | Torque |
|---|---|---|---|
| 2016 | Buick Encore Sport Touring | 114 kW (153 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) between 2000–4000 rpm |
| 2017–2019 | Buick Encore (Optional) | 114 kW (153 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) between 2000–4000 rpm |
| 2021–2022 | Buick Encore | 116 kW (155 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) between 2000–4000 rpm |
| 2016– | Chevrolet Cruze | 114 kW (153 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) between 2000–4000 rpm |
| 2021–2022 | Chevrolet Trax | 116 kW (155 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) between 2000–4000 rpm |
L3A
The L3A is a naturally aspirated, direct-injection 1.5 L SGE engine variant utilized in the second-generation Chevrolet Volt. It features a bore and stroke combination yielding a displacement of , operates with a compression ratio of 12.5:1, and runs on regular unleaded gasoline. The engine reaches a maximum speed of 6000 rpm.
| Year(s) | Model | Power | Torque |
|---|
|- |2016–2019 |Chevrolet Volt || at 5600 rpm || at 4300 rpm |- |2017–2019 |Buick Velite 5 || at 5800 rpm || at 4400 rpm |- |2024– |MG 3 || at 6000 rpm || at 4500 rpm |- |2020– |MG 5 || at 6000 rpm || at 4500 rpm |- |2024– |MG 3 Hybrid+ || at 6000 rpm || at 4500 rpm |}
LFV
The LFV is a turbocharged, direct-injection SGE engine variant with a displacement of 1.5 L, featuring bore and stroke dimensions totaling . It runs on regular unleaded fuel with a compression ratio of 10.0:1 and has a maximum engine speed of 6500 rpm. This variant may include an Automatic Start-Stop system. Production takes place in Shanghai (China), Changwon (South Korea), Toluca (Mexico), Spring Hill (Tennessee), and Flint (Michigan).
| Year(s) | Model | Power | Torque |
|---|---|---|---|
| 2016– | Chevrolet Malibu | 122 kW (163 hp) at 5700 rpm | 250 N⋅m (184 lb⋅ft) between 2000–4000 rpm |
| 2016– | Buick LaCrosse | 126 kW (169 hp) at 5600 rpm | 250 N⋅m (184 lb⋅ft) between 1700–4000 rpm |
| 2016–2021 | Buick Envision | 126 kW (169 hp) at 5600 rpm | 250 N⋅m (184 lb⋅ft) between 1700–4000 rpm |
| 2018– | MG HS | hp} {{}}, abbr=on, order=flip} at 5600 rpm | Nm} {{}}, lbft, abbr=on} between 1700–4400 rpm |
|} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} |} } } } } } } } } } } }
LYX
The LYX represents a direct-injection 1.5 L turbocharged SGE engine variant, sharing the identical bore and stroke dimensions as the LFV, resulting in a total displacement of . It operates with a compression ratio of 10.0:1 and is designed to run on regular unleaded petrol.
| Year(s) | Model | Power | Torque |
|---|
|- |2018– MG HS FFV || at 5600 rpm || at 1700–4400 rpm |- |2020– MG HS PHEV || at 5500 rpm || at 1700–4300 rpm |- |2018–2022 Chevrolet Equinox || at 5600 rpm || at 2000–4000 rpm |- |2018–2022 GMC Terrain || at 5600 rpm || at 2000–4000 rpm |}
LSD
The LSD is an upgraded version of the direct-injection 1.5 L turbocharged SGE engine, maintaining the same bore and stroke and a compression ratio of 10.0:1, while also utilizing regular unleaded fuel. This variant delivers an increased power output of , exceeding the LYX's 170 hp, though torque remains unchanged. Enhancements include a fuel system operating at higher pressure (35 MPa compared to 20 MPa), pistons featuring PVD coatings for improved durability, and finely tuned intake phaser control to boost both efficiency and performance.
| Year(s) | Model | Power | Torque |
|---|
|- 2023– Chevrolet Equinox || at 5600 rpm || at 2000–4000 rpm |- 2023– GMC Terrain || at 5600 rpm || at 2000–4000 rpm |}
Opel Variants
| Variant | Number of cylinders | Bore x stroke | Displacement | Aspiration type | Compression ratio | Power output | Torque | Vehicle applications | Production years |
|---|---|---|---|---|---|---|---|---|---|
| B10XE | Inline-3 | 74 mm × 77.7 mm (2.91 in × 3.06 in) | 999 cc (1.0 L) | Naturally aspirated Indirect injection |
10.5:1 | 75 hp (56 kW) at 6500 rpm |
96 N⋅m (71 lb⋅ft) at 4500 rpm |
Opel Karl | from 03/2015 |
| B10XFL | 74 mm × 77.4 mm (2.91 in × 3.05 in) | Direct injection turbo |
90 hp at 3700–6000 rpm | 170 Nm at 1800–3700 rpm | Opel Adam 1.0 SGE | from 11/2014 | |||
| Opel Corsa E 1.0 SGE Turbo | from 11/2014 | ||||||||
| 105 hp at 5000 rpm | 170 Nm at 1800–4250 rpm | Opel Astra K 1.0 Turbo | from 07/2015 | ||||||
| B10XFT | 115 hp at 5000–6000 rpm | 170 Nm at 1800–4500 rpm | Opel Adam 1.0 SGE | from 11/2014 | |||||
| Opel Corsa E 1.0 SGE Turbo (115 CV) | from 11/2014 | ||||||||
| B14XE | Inline-4 | 74 mm × 81.3 mm (2.91 in × 3.20 in) | 1,399 cc (1.4 L) | Naturally aspirated Indirect injection |
10.6:1 | 101 hp at 6000 rpm | 130 Nm at 4000 rpm | Opel Astra K 1.4 16v | from 07/2015 |
| B14XFL | Direct injection turbo |
10.0:1 | 125 hp at 4000–5600 rpm | 245 Nm at 2000–3500 rpm | Opel Astra K 1.4 Turbo | from 07/2015 | |||
| B14XFT | 150 hp at 5000–5600 rpm | Opel Astra K 1.4 Turbo | from 07/2015 | ||||||
| B15XFL | 74 mm x 86.6 mm | 1490 cc (1.5 L) | 10.1:1 | 103 kW (140 hp) at 5600 rpm | 250 Nm at 2000–4100 rpm |
Opel Insignia B 1.5 Turbo |
from 06/2017 | ||
|
B15XFT |
121 kW (165 hp) at 5600 rpm |
250 Nm at 2000–4500 rpm |
Opel Insignia B 1.5 Turbo |
from 06/2017 |
See also
- GM Family 0 engine
- GM Family 1 engine
- Daewoo S-TEC engine
- GM Medium Gasoline Engine
- GM Medium Diesel engine
- GM Ecotec engine
- List of GM engines