The Chevrolet Onix 1.4, specifically the facelifted version introduced in 2017, represented a significant offering in the burgeoning South American subcompact hatchback market. Produced from 2017 to 2019, this variant was positioned as a mainstream, value-oriented option within the Onix lineup, appealing to buyers seeking a fuel-efficient and practical vehicle for daily commuting. The Onix, as a whole, quickly became one of Chevrolet’s best-selling models in Brazil and other Latin American countries, competing directly with vehicles like the Fiat Palio and Volkswagen Gol. This particular 1.4-liter engine configuration, capable of running on both gasoline and ethanol (E85), was a key component of its success, offering flexibility to consumers based on fuel availability and pricing.
Technical Specifications
| Brand | Chevrolet |
| Model | Onix |
| Generation | Onix I (facelift 2017) |
| Type (Engine) | 1.4 (98/106 Hp) Ethanol |
| Start of production | 2017 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol / Ethanol – E85 |
| Weight-to-power ratio | 10.6 kg/Hp, 94.8 Hp/tonne |
| Weight-to-torque ratio | 8.1 kg/Nm, 122.8 Nm/tonne |
| Power | 98 Hp @ 6000 rpm |
| Power per litre | 70.6 Hp/l |
| Power (Ethanol – E85) | 106 Hp @ 6000 rpm |
| Power per litre (Ethanol – E85) | 76.3 Hp/l |
| Torque | 127 Nm @ 4800 rpm, 93.67 lb.-ft. @ 4800 rpm |
| Torque (Ethanol – E85) | 136 Nm @ 4800 rpm |
| Maximum engine speed | 6300 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | SPE/4 ECO |
| Engine displacement | 1389 cm3, 84.76 cu. in. |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 77.6 mm, 3.06 in. |
| Piston Stroke | 73.4 mm, 2.89 in. |
| Compression ratio | 12.4:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 3.5 l, 3.7 US qt | 3.08 UK qt |
| Coolant | 5.4 l, 5.71 US qt | 4.75 UK qt |
| Kerb Weight | 1034-1042 kg, 2279.58 – 2297.22 lbs. |
| Max. weight | 1417 kg, 3123.95 lbs. |
| Max load | 375-383 kg, 826.73 – 844.37 lbs. |
| Trunk (boot) space – minimum | 280 l, 9.89 cu. ft. |
| Fuel tank capacity | 54 l, 14.27 US gal | 11.88 UK gal |
| Length | 3933 mm, 154.84 in. |
| Width | 1705 mm, 67.13 in. |
| Width including mirrors | 1964 mm, 77.32 in. |
| Height | 1475-1476 mm, 58.07 – 58.11 in. |
| Wheelbase | 2528 mm, 99.53 in. |
| Front track | 1487-1492 mm, 58.54 – 58.74 in. |
| Rear (Back) track | 1489-1492 mm, 58.62 – 58.74 in. |
| Front overhang | 825 mm, 32.48 in. |
| Rear overhang | 580 mm, 22.83 in. |
| Ride height (ground clearance) | 123 mm, 4.84 in. |
| Minimum turning circle (turning diameter) | 10.43 m, 34.22 ft. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Torsion |
| Front brakes | Disc, 240×20 mm |
| Rear brakes | Drum, 200×31.5 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 185/70 R14; 185/65 R15 |
| Wheel rims size | 5J x 15; 5.5J x 15 |
INTRODUCTION
The Chevrolet Onix I, launched in 2013 and receiving a significant facelift in 2017, quickly became a cornerstone of Chevrolet’s strategy in South America. The 1.4-liter variant, producing 98 horsepower on gasoline and 106 horsepower on ethanol, was a key volume seller. Positioned as an entry-level to mid-range trim, it offered a balance of affordability, fuel efficiency, and practicality. The facelift brought updated styling, improved interior materials, and enhanced technology features, solidifying the Onix’s appeal in a competitive segment. Built on the GM Gamma platform, the Onix aimed to provide a modern and comfortable driving experience for the price-conscious consumer.
Powertrain & Engine Architecture
The heart of the Onix 1.4 is the SPE/4 ECO engine, a 1.4-liter inline-four cylinder engine designed to operate efficiently on both gasoline and ethanol. This flex-fuel capability was crucial in markets like Brazil, where ethanol is widely available and often cheaper than gasoline. The engine utilizes a single overhead camshaft (SOHC) valvetrain with two valves per cylinder. Fuel delivery is managed by a multi-port fuel injection system. The engine’s 12.4:1 compression ratio is optimized for both fuel types, with the ethanol-tuned version benefiting from the fuel’s higher octane rating to produce slightly more power. The 5-speed manual transmission was the standard offering for this variant, providing a relatively direct and engaging driving experience. The transmission’s gear ratios were tuned for fuel economy and everyday drivability, rather than outright performance.
Driving Characteristics
The Onix 1.4 with the 5-speed manual transmission delivers adequate performance for urban driving and highway cruising. While not a sports car, the engine provides sufficient power for overtaking maneuvers and maintaining speed on inclines. The 98 horsepower (or 106 on ethanol) translates to a respectable, if not exhilarating, acceleration. The manual transmission allows for greater driver control and engagement compared to an automatic, and the gear ratios are well-suited to the engine’s powerband. Compared to higher-trim Onix models equipped with the 1.8-liter engine, the 1.4 feels noticeably less powerful, particularly when fully loaded with passengers and cargo. However, the 1.4’s lighter weight and more economical fuel consumption make it a practical choice for daily commutes.
Equipment & Trim Levels
The 2017 facelifted Onix 1.4 typically came standard with features such as air conditioning, power steering, power windows, and central locking. Safety features included dual front airbags and an Anti-lock Braking System (ABS). Higher trim levels offered options like a more advanced infotainment system with a touchscreen display, Bluetooth connectivity, and alloy wheels. Interior upholstery was typically cloth, with a functional and durable design. The dashboard layout was straightforward and user-friendly, prioritizing ease of use over luxury. Optional extras included rear parking sensors and a more comprehensive audio system.
Chassis & Braking
The Onix 1.4 utilizes a McPherson strut front suspension and a torsion beam rear suspension. This setup provides a comfortable ride quality, absorbing bumps and imperfections in the road surface effectively. The front suspension incorporates a coil spring and anti-roll bar to minimize body roll during cornering. Braking duties are handled by disc brakes at the front and drum brakes at the rear. While adequate for everyday driving, the drum brakes on the rear wheels offer less stopping power and fade resistance compared to disc brakes. The hydraulic power steering provides a light and responsive feel, making it easy to maneuver in tight spaces.
Market Reception & Comparison
The Chevrolet Onix 1.4 was generally well-received by automotive critics in South America. It was praised for its fuel efficiency, practicality, and affordability. Compared to other subcompact hatchbacks in its class, the Onix offered a competitive level of equipment and a comfortable driving experience. The 1.8-liter Onix models offered more performance, but at a higher price point. The 1.4’s fuel economy was a key selling point, particularly in markets where gasoline prices are high. Reliability reports suggest that the SPE/4 ECO engine is generally durable and requires minimal maintenance, although regular servicing is essential to ensure optimal performance.
Legacy
The Chevrolet Onix, and specifically the 1.4-liter variant, established itself as a dominant force in the South American automotive market. Its success paved the way for the second-generation Onix, which continued to build on the first generation’s strengths. On the used car market, the 2017-2019 Onix 1.4 remains a popular choice due to its affordability, fuel efficiency, and relatively low maintenance costs. The SPE/4 ECO engine has proven to be a reliable and durable powertrain, making these Onix models a sensible option for budget-conscious buyers seeking a practical and dependable vehicle.



