The Opel Astra J (facelift, introduced in 2012) 1.4 LPG (140 hp) Ecotec represents a specific variant within the broader Astra J range, a compact family car manufactured by the German automaker Opel. Production of this particular configuration ran from 2012 to 2015. Positioned as a fuel-efficient alternative within the lineup, it catered to buyers seeking lower running costs without sacrificing a reasonable level of performance. The Astra J, as a whole, was a significant model for Opel, aiming to compete with established rivals like the Volkswagen Golf, Ford Focus, and Peugeot 308 in the highly competitive European C-segment. This LPG variant was primarily marketed in countries with established LPG infrastructure and incentives, offering a bi-fuel capability that allowed drivers to switch between gasoline and liquefied petroleum gas.
Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra J (facelift 2012) |
| Type (Engine) | 1.4 LPG (140 Hp) Ecotec |
| Start of production | 2012 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 7.9 l/100 km (29.8 US mpg, 35.8 UK mpg, 12.7 km/l) |
| Fuel consumption (economy) – urban (LPG) | 10.9 l/100 km |
| Fuel consumption (economy) – extra urban | 4.9 l/100 km (48 US mpg, 57.6 UK mpg, 20.4 km/l) |
| Fuel consumption (economy) – extra urban (LPG) | 6.8 l/100 km |
| Fuel consumption (economy) – combined | 6.0 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| Fuel consumption (economy) – combined (LPG) | 8.3 l/100 km |
| CO2 emissions | 147 g/km |
| CO2 emissions (LPG) | 129 g/km |
| Fuel Type | Petrol / LPG |
| Acceleration 0 – 100 km/h | 10.2 sec |
| Acceleration 0 – 62 mph | 10.2 sec |
| Acceleration 0 – 60 mph | 9.7 sec |
| Maximum speed | 202 km/h (125.52 mph) |
| Emission standard | Euro 5 |
| Power | 140 Hp @ 4900-6000 rpm |
| Power per litre | 102.8 Hp/l |
| Torque | 200 Nm @ 1850-4900 rpm (147.51 lb.-ft. @ 1850-4900 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | A14NET |
| Engine displacement | 1362 cm3 (83.11 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 72.5 mm (2.85 in.) |
| Piston Stroke | 82.6 mm (3.25 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 4 l (4.23 US qt | 3.52 UK qt) |
| Coolant | 6.2 l (6.55 US qt | 5.46 UK qt) |
| Trunk (boot) space – minimum | 370 l (13.07 cu. ft.) |
| Trunk (boot) space – maximum | 1235 l (43.61 cu. ft.) |
| Fuel tank capacity | 56 l (14.79 US gal | 12.32 UK gal) |
| Fuel tank capacity (LPG) | 34.20 l |
| Length | 4419 mm (173.98 in.) |
| Width | 1814 mm (71.42 in.) |
| Width with mirrors folded | 1831 mm (72.09 in.) |
| Width including mirrors | 2013 mm (79.25 in.) |
| Height | 1510 mm (59.45 in.) |
| Wheelbase | 2685 mm (105.71 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear (Back) track | 1551 mm (61.06 in.) |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | ICE drives front wheels |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent type McPherson |
| Front brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/60 R16 |
| Wheel rims size | 16 |
Introduction
The Opel Astra J 1.4 LPG (140 hp) Ecotec, introduced during the facelift of the J generation in 2012, was designed to appeal to cost-conscious buyers in European markets. The Astra J, built on the GM Delta II platform (also known as the 1HX0/A3 platform), represented a significant step forward for Opel in terms of design, technology, and overall refinement. The LPG variant specifically targeted regions where LPG fuel was readily available and economically advantageous, offering a lower cost per mile compared to traditional gasoline. This model year saw updates to the Astra J’s exterior styling, interior materials, and available technology, further enhancing its competitiveness.
Powertrain & Engine Architecture
At the heart of the Astra J 1.4 LPG lies the A14NET engine, a 1.4-liter inline-four cylinder powerplant. This engine is a naturally aspirated unit featuring multi-point fuel injection. The LPG system is a conversion integrated into the engine management system, allowing seamless switching between gasoline and LPG operation. The engine produces 140 horsepower at 4900-6000 rpm and 200 Nm (147.51 lb-ft) of torque between 1850 and 4900 rpm. The engine utilizes a timing chain, contributing to reduced maintenance compared to timing belt setups. The 6-speed manual transmission was standard, chosen for its balance of fuel efficiency and driver engagement. While an automatic transmission was available on other Astra J variants, it wasn’t offered with the 1.4 LPG engine.
Driving Characteristics
The 1.4 LPG variant of the Astra J offered a respectable, if not exhilarating, driving experience. With 140 hp, acceleration from 0-100 km/h (0-62 mph) took around 10.2 seconds. The LPG system did result in a slight power reduction compared to the gasoline-only version of the 1.4, but the difference was generally not noticeable in everyday driving. The 6-speed manual transmission provided adequate control, although the gear ratios were tuned more for fuel economy than outright performance. Compared to the more powerful 1.6-liter or 2.0-liter turbocharged Astra J models, the 1.4 LPG felt less responsive, particularly during overtaking maneuvers. However, it offered a smoother and more relaxed driving experience, making it well-suited for urban commuting and long-distance cruising.
Equipment & Trim Levels
The Astra J 1.4 LPG was typically offered in mid-range trim levels, such as ‘Enjoy’ or ‘Edition’ depending on the specific market. Standard equipment generally included air conditioning, electric front windows, a CD/MP3 stereo system, and ABS brakes. Higher trim levels added features like alloy wheels, cruise control, a touchscreen infotainment system, and parking sensors. Interior upholstery was typically cloth, with options for upgraded materials available. The dashboard layout was functional and well-designed, with a focus on ergonomics. Optional extras included a panoramic sunroof, heated seats, and a navigation system.
Chassis & Braking
The Astra J 1.4 LPG utilized a McPherson strut front suspension and a torsion beam rear suspension. This setup provided a good balance of ride comfort and handling. Front brakes were ventilated discs, while rear brakes were typically drum brakes, although some higher-spec models featured rear discs. The steering was electrically assisted, providing light and precise control. The chassis was designed to minimize weight, contributing to improved fuel efficiency and handling. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Astra J 1.4 LPG was generally well-received by critics as a practical and economical choice. Fuel economy was a key selling point, with the LPG system offering significant savings compared to gasoline. However, some reviewers noted the slight performance reduction compared to the gasoline-only version. Compared to other Astra J variants, such as the 1.6-liter petrol or the 1.7 CDTI diesel, the 1.4 LPG offered a different proposition. The diesel provided superior fuel economy and torque, while the 1.6 petrol offered more power. The LPG variant occupied a niche position, appealing to buyers specifically seeking the benefits of LPG fuel.
Legacy
The Opel Astra J 1.4 LPG (140 hp) Ecotec has proven to be a relatively reliable powertrain in the used car market. The A14NET engine is known for its durability, and the LPG system, when properly maintained, can provide years of trouble-free service. However, regular servicing of the LPG system is crucial to ensure optimal performance and prevent potential issues. Today, these Astra J models represent an affordable and economical option for buyers seeking a practical and fuel-efficient compact car. The availability of LPG infrastructure remains a key factor in the desirability of these vehicles.


