The Nissan Bluebird U12, produced between 1987 and 1991, represented a significant evolution in Nissan’s mid-size sedan offerings. Positioned as a comfortable and reliable family vehicle, the U12 Bluebird aimed to compete with established rivals like the Toyota Corolla and Honda Accord. Within the U12 range, the 1.8i variant, producing 110 horsepower, served as a popular choice, offering a balance between performance and fuel efficiency. This model was primarily marketed in Japan, Australia, and select Asian markets, with limited presence in North America. It was a key component of Nissan’s strategy to offer a modern, well-equipped sedan to a broad customer base.
Technical Specifications
| Brand | Nissan |
| Model | Bluebird |
| Generation | Bluebird (U12) |
| Type (Engine) | 1.8i (110 Hp) |
| Start of production | 1987 |
| End of production | 1991 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 7.4 l/100 km (31.8 US mpg, 38.2 UK mpg, 13.5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Power | 110 Hp @ 6000 rpm |
| Power per litre | 59.8 Hp/l |
| Torque | 150 Nm @ 4000 rpm (110.63 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | SR18Di |
| Engine displacement | 1838 cm3 (112.16 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82.5 mm (3.25 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Single-point injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Fuel tank capacity | 60 l (15.85 US gal, 13.2 UK gal) |
| Length | 4520 mm (177.95 in.) |
| Width | 1690 mm (66.54 in.) |
| Height | 1375 mm (54.13 in.) |
| Wheelbase | 2550 mm (100.39 in.) |
| Front track | 1460 mm (57.48 in.) |
| Rear track | 1440 mm (56.69 in.) |
| Minimum turning circle | 10 m (32.81 ft.) |
| Drivetrain | Front wheel drive |
| Number of gears | 5 gears, manual transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
Powertrain & Engine Architecture
The heart of the Bluebird 1.8i was the SR18Di engine, a 1.8-liter inline four-cylinder powerplant. This engine utilized a single-point fuel injection system, a common technology for the time, delivering fuel to the intake manifold rather than directly into the cylinders. The SR18Di featured a double overhead camshaft (DOHC) valvetrain, contributing to improved breathing and overall engine efficiency. The engine’s 9.5:1 compression ratio was a compromise between performance and the fuel quality available in various markets. The 110 horsepower output was achieved at 6000 rpm, while peak torque of 150 Nm (110.63 lb.-ft.) arrived at 4000 rpm. The engine was transversely mounted in the front of the vehicle, driving the front wheels. The U12 Bluebird 1.8i was exclusively offered with a 5-speed manual transmission, providing drivers with direct control over the engine’s power delivery.
Driving Characteristics
The 1.8i Bluebird offered a comfortable and predictable driving experience. While not a performance-oriented model, the 110 hp engine provided adequate power for everyday driving situations. Acceleration was reasonable, though not particularly brisk, and the 5-speed manual transmission allowed drivers to keep the engine in its optimal power band. The gear ratios were tuned for fuel efficiency and smooth cruising, rather than aggressive acceleration. Compared to the more powerful variants, such as those equipped with larger engines, the 1.8i prioritized fuel economy and ease of use. The front-wheel-drive configuration provided good traction in most conditions, and the suspension offered a comfortable ride, absorbing bumps and imperfections in the road surface effectively.
Equipment & Trim Levels
The Bluebird 1.8i typically came equipped with a respectable level of standard features for its time. These included power steering, a basic audio system, cloth upholstery, and manual windows and locks. Higher trim levels offered options such as air conditioning, upgraded audio systems, and power windows. Interior appointments were generally functional and durable, reflecting the Bluebird’s focus on practicality. The dashboard layout was straightforward and easy to use, with clearly labeled controls. The 1.8i trim often served as the entry point to the U12 Bluebird range, making it an accessible option for budget-conscious buyers.
Chassis & Braking
The U12 Bluebird utilized a conventional front-wheel-drive chassis layout. The front suspension consisted of MacPherson struts, while the rear suspension employed a torsion beam setup. This configuration provided a good balance between ride comfort and handling stability. Braking duties were handled by ventilated discs at the front and drum brakes at the rear. While adequate for normal driving conditions, the drum brakes on the rear wheels were a cost-saving measure and didn’t offer the same stopping power as disc brakes. The Bluebird’s chassis was designed to prioritize comfort and durability, rather than sporty handling characteristics.
Market Reception & Comparison
The Nissan Bluebird 1.8i was generally well-received by critics and consumers alike. It was praised for its reliability, fuel efficiency, and comfortable ride. However, some reviewers noted that the engine lacked the power and refinement of its competitors. Compared to other trims in the Bluebird lineup, the 1.8i offered the most affordable entry point, making it popular with families and first-time car buyers. Its fuel economy was notably better than the larger-engined variants, making it an attractive option for those prioritizing running costs. The 1.8i’s simplicity also contributed to its reliability, as there were fewer complex components that could potentially fail.
Legacy
The Nissan Bluebird U12 1.8i has proven to be a durable and reliable vehicle, with many examples still on the road today. The SR18Di engine is known for its longevity and relatively simple maintenance requirements. In the used car market, the U12 Bluebird 1.8i is often sought after by enthusiasts looking for a classic Japanese sedan that is both affordable and dependable. While not a particularly rare or collectible model, it represents a significant chapter in Nissan’s history and remains a testament to the company’s commitment to building quality vehicles. Its straightforward design and robust powertrain continue to appeal to those seeking a practical and reliable mode of transportation.
