GM E-Turbo engine
Reciprocating internal combustion engine
From Wikipedia, the free encyclopedia
The GM E-Turbo engine is a gasoline-fueled engine developed by General Motors as part of the company’s next-generation turbocharged engine family. The engine features a start-stop system, gasoline direct injection, an electric water pump and an electric turbocharger wastegate to optimize fuel efficiency.
| GM E-Turbo engine | |
|---|---|
 The LIY 1.35 L inline-3 in a Chevrolet Monza | |
| Overview | |
| Manufacturer | General Motors, SAIC-GM |
| Also called | |
| Production | 2017–present |
| Layout | |
| Configuration | I3, I4 |
| Displacement |
|
| Cylinder bore | 72.6–80 mm (2.86–3.15 in) |
| Piston stroke | 77.5–91.2 mm (3.05–3.59 in) |
| Cylinder block material | Aluminium alloy |
| Cylinder head material | Aluminium alloy |
| Valvetrain | DOHC |
| Compression ratio | 9.5–12.5:1 |
| Combustion | |
| Fuel system | Gasoline direct injection, port injection |
| Fuel type | Gasoline |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 76–208 hp (57–155 kW) |
| Torque output | 24.1 kg⋅m (174 lb⋅ft) |
| Emissions | |
| Emissions target standard | Euro 6d US Federal Tier 3 |
| Chronology | |
| Predecessor | GM Small Gasoline engine |
| Successor | PSA PureTech engine (Opel, Vauxhall) |
The engine is also known as the Eighth Generation Ecotec engine. GM introduced the engine in the 2019 Korean-market Chevrolet Malibu.[2][3]
LBP engines in 2025 Buick Envista, 2025 Buick Encore GX, 2025 Chevy Trax, and 2025 Chevy Trailblazer offer E85 Flex Fuel capability.
1.0 L
The 1.0-liter inline-3 consists of two families of engines. The first engine family is known as CSS (Cylinder Set Strategy) Prime, and is a further development of the 1.0-liter GM Small Gasoline engine family. It shares its engine block design with the 1.2-liter variants, but uses different cylinder liners. It has a bore and stroke of 74 mm × 77.5 mm (2.91 in × 3.05 in) for a displacement of 999.8 cc (61.01 cu in).[4]
The second line of engines is the SAIC-GM dual injection E-Tec engine which has a bore and stroke of 72.6 mm × 80.4 mm (2.86 in × 3.17 in) for a displacement of 999 cc (61.0 cu in).[4]
LIJ
This CSS Prime variant is used primarily in Latin American markets. It is naturally aspirated and uses port injection, and an ethanol flex-fuel capable variant is offered in the Brazilian market. It uses an oil-immersed timing belt. It has a compression ratio of 12.5:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–present | Chevrolet Onix | 76 hp (57 kW; 77 PS) @6,400 | 95 N⋅m (70 lb⋅ft) @4,100 |
| Chevrolet Onix (ethanol) | 80 hp (60 kW; 81 PS) @6,400 | 104 N⋅m (77 lb⋅ft) @4,100 |
L4G
This CSS Prime variant is used primarily in Latin American markets. It is turbocharged and uses port injection, and an ethanol flex-fuel capable variant is offered in the Brazilian market. It uses an oil-immersed timing belt. It has a compression ratio of 10.5:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–present | Chevrolet Onix | 114 hp (85 kW; 116 PS) @5,500 | 160 N⋅m (118 lb⋅ft) @2,000–4,500 |
| Chevrolet Tracker | |||
| Chevrolet Onix (ethanol) | 165 N⋅m (122 lb⋅ft) @2,000–4,500 | ||
| Chevrolet Tracker (ethanol) |
L4F
This CSS Prime variant is used primarily in Latin American markets. It is turbocharged and uses direct injection, and an ethanol flex-fuel capable variant is offered in the Brazilian market. It uses an oil-immersed timing belt. It has a compression ratio of 10.5:1.
The L4F in the Chevrolet Onix has a port injection and a reduced compression ratio of 9.5:1 and is only sold in the Argentina market.
In July 2025, the flex-fuel variant was updated to improve fuel efficiency to qualify for Brazil's new IPI Verde sustainable vehicle tax reduction program, and the oil-immersed timing belt was upgraded with a more durable model with an increased warranty of 240,000 km (150,000 mi) compared to the previous 150,000 km (93,000 mi).[5]
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–present | Chevrolet Onix | 114 hp (85 kW; 116 PS) @5,500 | 160 N⋅m (118 lb⋅ft) @2,000–4,500 |
| 2024–present | Chevrolet Tracker | 115 hp (86 kW; 117 PS) @5,000 | 180 N⋅m (133 lb⋅ft) @1,800–3,500 |
| 2024–25 | Chevrolet Tracker (ethanol) | 119 hp (89 kW; 121 PS) @5,000 | 185 N⋅m (136 lb⋅ft) @1,800–3,500 |
| 2025–present | 113 hp (84 kW; 115 PS) @5,000 | 181 N⋅m (133 lb⋅ft) @1,800–3,500 |
LJI
The LJI E-Tec was developed for SAIC-GM. It is turbocharged and has twin port injectors mounted closer to the intake valves. It has a bore and stroke of 72.6 mm × 80.4 mm (2.86 in × 3.17 in) with a compression ratio of 9.5:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2017–19 | Buick Excelle GT | 123 hp (92 kW; 125 PS) @5,600 | 170 N⋅m (125 lb⋅ft) @2,000–3,600 |
| 2018–19 | Chevrolet Cavalier | 118 hp (88 kW; 120 PS) @5,200 | 165 N⋅m (122 lb⋅ft) @1,700–4,400 |
LIW
The LIW is an updated version of the LJI which meets China 6B emissions standards. It has an increased compression ratio of 10.0:1 but still uses port injection.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–20 | Buick Excelle GT | 123 hp (92 kW; 125 PS) @5,600 | 170 N⋅m (125 lb⋅ft) @2,000–4,000 |
| 2019–22 | Chevrolet Monza |
LIV
This E-Tec variant has direct injection and is turbocharged and meets China 6B emissions standards. It has a bore and stroke of 72.6 mm × 80.4 mm (2.86 in × 3.17 in) with a compression ratio of 10.5:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–22 | Buick Encore | 123 hp (92 kW; 125 PS) @5,800 | 180 N⋅m (133 lb⋅ft) @1,350–4,500 |
| 2019–21 | Buick Verano | ||
| 2019–present | Chevrolet Onix | ||
| 2019–22 | Chevrolet Tracker | ||
| 2021–25 | Chevrolet Tracker (Philippines) | 175 N⋅m (129 lb⋅ft) @1,500–4,200 |
1.2 L
This line of engines is known as the Prime CSS (Cylinder Set Strategy) engines, and is a further development of the 1.1-liter GM Small Gasoline engine family. It shares its engine block design with the 1.0-liter variants, but uses different cylinder liners. It has a bore and stroke of 75 mm × 90.5 mm (2.95 in × 3.56 in).[4]
LIF
This variant is naturally aspirated and uses port injection with a compression ratio of 10.5:1. It is used in the Argentinian-built Chevrolet Onix.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–24 | Chevrolet Onix | 89 hp (66 kW; 90 PS) @6,200 | 115 N⋅m (85 lb⋅ft) @4,400 |
L4H
The L4H is turbocharged and has port injection, with a compression ratio of 10.5:1 in Brazil and Mexico-built vehicles, and a 9.5:1 compression ratio model used in some markets.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–22 | Chevrolet Onix | 130 hp (97 kW; 132 PS) @5,500 | 190 N⋅m (140 lb⋅ft) @2,000–4,500 |
| 2019–present | Chevrolet Tracker | ||
| 2019–present | Chevrolet Montana |
L4K
The L4K was the first CSS Prime family engine to enter production. It is the direct injected version of the L4H and also has flex-fuel capability. It was originally used by Opel in the Astra with a 10.0:1 compression ratio, while South American variants use a 10.5:1 compression ratio.
South American variants initially used port injection, which was upgraded to direct injection in 2024 to meet emissions regulations.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–21 | Opel/Vauxhall Astra | 108 hp (81 kW; 109 PS) @4,500 | 195 N⋅m (144 lb⋅ft) @2,000–3,500 |
| 129 hp (96 kW; 131 PS) @5,500 | 225 N⋅m (166 lb⋅ft) @2,000–3,500 | ||
| 143 hp (107 kW; 145 PS) @5,500 | |||
| 2020–24 | Chevrolet Tracker (ethanol) | 131 hp (98 kW; 133 PS) @5,500 | 210 N⋅m (155 lb⋅ft) @2,000–4,500 |
| 2020–24 | Chevrolet Montana (ethanol) | ||
| 2024–present | Chevrolet Tracker | 137 hp (102 kW; 139 PS) @5,000 | 220 N⋅m (162 lb⋅ft) @2,500–4,000 |
| 2024–present | Chevrolet Montana | ||
| 2024–present | Chevrolet Tracker (ethanol) | 139 hp (104 kW; 141 PS) @5,000 | 225 N⋅m (166 lb⋅ft) @2,500–4,000 |
| 2024–present | Chevrolet Montana (ethanol) |
LIH
The LIH variant is the North American market version of the L4K.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2020–present | Buick Encore GX | 137 hp (102 kW; 139 PS) @5,000 | 219 N⋅m (162 lb⋅ft) @2,500 |
| 2021–present | Chevrolet Trailblazer | ||
| 2024–present | Buick Envista | ||
| 2024–present | Chevrolet Trax |
LBP
The LBP is the E85 flex-fuel variant of the LIH exclusively for the US market.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2025–present | Buick Encore GX | 137 hp (102 kW; 139 PS) @5,000 | 219 N⋅m (162 lb⋅ft) @2,500 |
| Buick Envista | |||
| Chevrolet Trailblazer | |||
| Chevrolet Trax |
1.3 L
The 1.3-liter inline-3 engines consist of two engine families, the CSS 45T E-Turbo engine used globally and the SAIC-GM dual injection E-Tec engine used primarily in China. The CSS 45T E-Turbo has a bore and stroke of bore and stroke of 79 mm × 91.2 mm (3.11 in × 3.59 in) for a displacement of 1,341 cc (81.8 cu in) (447 cc (0.45 L) per cylinder), while the E-Tec engines have a bore and stroke of 80 mm × 89.4 mm (3.15 in × 3.52 in) for a slightly higher displacement of 1,349 cc (82.3 cu in).[4]
L3Z
This CSS 45T variant is used in the Korean and Chinese markets, and was first used in the South Korean Chevy Malibu. It was developed to meet China 6B emissions standards. It is turbocharged and direct injected and has a compression ratio of 10.3:1. It uses an electric water pump, electronic turbocharger wastegate, and electric brake booster.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2018–22 | Chevrolet Malibu (Korea) | 154 hp (115 kW; 156 PS) @5,600 | 236 N⋅m (174 lb⋅ft) @1,600–4,000 |
| 2021–present | Chevrolet Trailblazer (Korea) | ||
| 2019–22 | Chevrolet Trailblazer | 156 hp (116 kW; 158 PS) @5,600 | 240 N⋅m (177 lb⋅ft) @1,500–4,000 |
| 2019–22 | Buick Encore | ||
| 2019–22 | Chevrolet Tracker | 162 hp (121 kW; 164 PS) @5,600 | |
| 2019–20 | Chevrolet Malibu XL | ||
| 2019–23 | Buick Encore GX | ||
| 2020–21 | Buick Verano | ||
| 2020 | Buick Lacrosse[6] |
L3T
This CSS 45T variant is branded as Ecotec and is used in North American and European market vehicles. It has a compression ratio of 10.0:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–21 | Opel/Vauxhall Astra | 143 hp (107 kW; 145 PS) @5,000–6,000 | 236 N⋅m (174 lb⋅ft) @1,500–3,500 |
| 2020–present | Buick Encore GX | 155 hp (116 kW; 157 PS) @5,600 | 236 N⋅m (174 lb⋅ft) @1,500–4,000 |
| 2021–present | Chevrolet Trailblazer | ||
| 2020 | Buick Lacrosse[6] | 158 hp (118 kW; 160 PS) |
LI5
This E-Tec variant is naturally aspirated and uses twin port injectors at each cylinder mounted close to the valves. It is sold in the Chinese market. It has a compression ratio of 11.5:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2018–19 | Buick Excelle | 106 hp (79 kW; 107 PS) @6,200 | 133 N⋅m (98 lb⋅ft) @4,000 |
LGB
This variant is an updated version of the LI5 that meets China 6B emissions standards. It is primarily sold in the Chinese market, but is also exported to Mexico in the Chevrolet Onix.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–23 | Buick Excelle | 106 hp (79 kW; 107 PS) @6,200 | 130 N⋅m (96 lb⋅ft) @4,000–4,400 |
| 2019–present | Chevrolet Onix |
LI6
This E-Tec variant is turbocharged and has dual port injectors placed close to the valves. It has a compression ratio of 9.5:1.
LIY
The LIY is an update to the LI6 which meets China 6B emissions standards. It has an increased compression ratio of 10.0:1 and features a 48-volt mild hybrid system, but still uses port injection.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2019–25 | Chevrolet Monza | 161 hp (120 kW; 163 PS) @5,500 | 230 N⋅m (170 lb⋅ft) @1,800–4,400 |
| 2020–22 | Buick Excelle GT | ||
| 2020–23 | Buick GL6 | ||
| 2019–23 | Chevrolet Orlando | ||
| 2021–25 | Chevrolet Cavelier (Mexico) | 230 N⋅m (170 lb⋅ft) @1,600–4,400 | |
| 2019–22 | MG ZS | 161 hp (120 kW; 163 PS) @5,200 | 230 N⋅m (170 lb⋅ft) @1,800–4,400 |
| 2019–21 | Maxus D60 | ||
| 2019–23 | Maxus Euniq 5 PHEV | ||
| 2019–23 | Maxus Euniq 6 PHEV | ||
| 2021–25 | MG Astor (India) | 138 hp (103 kW; 140 PS) @5,600 | 220 N⋅m (162 lb⋅ft) @3,600 |
1.5 L
These 1.5-liter engines all have a bore of 74.5 mm (2.93 in) and a stroke of 85.7 mm (3.37 in) for a displacement of 1,498 cc (91.4 cu in). In China they are known as the SAIC-GM CSS (Cylinder Set Strategy) 375T engine family (374.5 cc (0.375 L) per cylinder). It is equipped with variable valve time cam phasers that are twice the speed compared to the previous generation on both intake and exhaust cams. They use a 35 MPa (5,100 psi; 350 bar) direct injection system.[4]
LJV
The LJV was the first eight-generation Ecotec engine variant introduced to China in the Buick Verano Pro.[7] It has a compression ratio of 10:1.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2021–23 | Buick Verano Pro | 181 hp (135 kW; 184 PS) @5,500 | 250 N⋅m (184 lb⋅ft) @1,500–5,000 |
| 2022–25 | Chevrolet Tracker |
LAH
The LAH is equipped with a 48-volt mild-hybrid system which contributes an additional 13 hp (10 kW; 13 PS) and 50 N⋅m (37 lb⋅ft) to the engine's total output.
LDF
The LDF is the longitudinal rear-wheel drive version of the LAH.
| Year | Model | Power | Torque |
|---|---|---|---|
| LAH | |||
| 2021–24 | Buick Envision S | 208 hp (155 kW; 211 PS) @5,500 | 270 N⋅m (199 lb⋅ft) @1,750–4,500 |
| 2022–23 | Buick Envision Plus | ||
| 2023–26 | Cadillac GT4 | ||
| 2023–present | Cadillac XT4 (China) | ||
| LDF | |||
| 2022–present | Cadillac CT4 (China) | 208 hp (155 kW; 211 PS) @5,500 | 270 N⋅m (199 lb⋅ft) @1,750–4,500 |
LP5
An updated higher output version of the LP5 was introduced in March 2025 with the Buick Envision S.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2023–25 | Buick Encore Plus | 181 hp (135 kW; 184 PS) @5,500 | 250 N⋅m (184 lb⋅ft) @1,500–5,000 |
| 2023–25 | Buick Envista (China) | ||
| 2022–24 | Chevrolet Seeker | ||
| 2025–present | Buick Envision S | 208 hp (155 kW; 211 PS) @5,500 | 270 N⋅m (199 lb⋅ft) @1,750–4,500 |
LAX
The LAX is a variant optimized for use in plug-in hybrids in the Chinese market. It uses the Miller cycle to improve efficiency.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2023 | Buick LaCrosse | 177 hp (132 kW; 179 PS) @5,500 | 250 N⋅m (184 lb⋅ft) @1,500–4,500 |
| 2024–25 | Chevrolet Equinox Plus PHEV | ||
| 2024–present | Buick GL8 PHEV | ||
| 2025–present | Buick GL8 Encasa PHEV |
LD3
The LD3 is variant optimized for use in range-extender vehicles.
| Year | Model | Power | Torque |
|---|---|---|---|
| 2025–present | Buick Electra L7 | 154 hp (115 kW; 156 PS) @5,500 | 230 N⋅m (170 lb⋅ft) @2,500–4,000 |