The Kia Optima III, specifically the facelifted version introduced in 2013, represented a significant step forward for the Korean automaker in the mid-size sedan segment. Produced from 2013 to 2015, the 2.4 GDI (Gasoline Direct Injection) variant with the automatic transmission was a key offering, positioned as a well-equipped and relatively efficient choice within the Optima lineup. This model year saw styling refinements and technological updates aimed at enhancing the Optima’s appeal in a competitive market. It was primarily sold in North America, Europe, and parts of Asia, offering a compelling alternative to established Japanese and European rivals.
Technical Specifications
| Brand | Kia |
| Model | Optima |
| Generation | Optima III (facelift 2013) |
| Type (Engine) | 2.4 GDI (194 Hp) Automatic |
| Start of production | 2013 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (combined) | 8.7 l/100 km (27 US mpg, 32.5 UK mpg, 11.5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.6 kg/Hp, 130.7 Hp/tonne |
| Weight-to-torque ratio | 6.1 kg/Nm, 165.1 Nm/tonne |
| Power | 194 Hp @ 6300 rpm |
| Power per litre | 82.2 Hp/l |
| Torque | 245 Nm @ 4250 rpm (180.7 lb.-ft. @ 4250 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | G4KJ |
| Engine displacement | 2359 cm3 (143.96 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 88 mm (3.46 in.) |
| Piston Stroke | 97 mm (3.82 in.) |
| Compression ratio | 11.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.8 l (5.07 US qt | 4.22 UK qt) |
| Coolant | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1484 kg (3271.66 lbs.) |
| Trunk (boot) space – minimum | 436 l (15.4 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4845 mm (190.75 in.) |
| Width | 1830 mm (72.05 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 2795 mm (110.04 in.) |
| Front track | 1595 mm (62.8 in.) |
| Rear (Back) track | 1595 mm (62.8 in.) |
| Front overhang | 965 mm (37.99 in.) |
| Rear overhang | 1085 mm (42.72 in.) |
| Drag coefficient (Cd) | 0.285 |
| Minimum turning circle (turning diameter) | 11.2 m (36.75 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 | 6 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 215/55 R17 |
| Wheel rims size | 6.5J x 17 |
INTRODUCTION
The 2013-2015 Kia Optima 2.4 GDI Automatic represented a sweet spot in the Optima range for many buyers. It offered a balance of performance, fuel efficiency, and features at a competitive price point. Built on the TF platform (internally designated as the 1HX0/A3), the Optima aimed to challenge established mid-size sedans like the Toyota Camry, Honda Accord, and Ford Fusion. The facelift brought revised front and rear styling, along with interior enhancements, to further refine the Optima’s appeal. This variant was particularly popular in the North American market, where the demand for comfortable, well-equipped, and reliable family sedans was high.
Powertrain & Engine Architecture
At the heart of the Optima 2.4 GDI Automatic lies the G4KJ engine, a 2.4-liter inline-four cylinder powerplant. This engine utilizes Gasoline Direct Injection (GDI) technology, where fuel is injected directly into the combustion chamber, improving efficiency and power output. The G4KJ produces 194 horsepower at 6300 rpm and 245 Nm (180.7 lb-ft) of torque at 4250 rpm. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its responsive nature. Paired with this engine is a six-speed automatic transmission, designed for smooth shifting and optimized fuel economy. This transmission wasn’t known for being particularly sporty, prioritizing comfort and efficiency over aggressive gear changes. The engine’s design focused on providing adequate power for everyday driving situations, rather than outright performance.
Driving Characteristics
The Optima 2.4 GDI Automatic delivered a comfortable and predictable driving experience. While not a performance-oriented vehicle, the 194 hp engine provided sufficient power for merging onto highways and overtaking slower traffic. The six-speed automatic transmission, while smooth, wasn’t particularly quick to downshift, and the gear ratios were tuned for fuel efficiency rather than acceleration. Compared to the more powerful 2.0T turbocharged engine option, the 2.4 GDI felt less eager to rev, but it offered a more linear power delivery. Against the base 2.0-liter engine, the 2.4 GDI provided a noticeable improvement in performance. The suspension was tuned for comfort, absorbing bumps and road imperfections well, but it didn’t offer the same level of handling precision as some of its European competitors.
Equipment & Trim Levels
The 2.4 GDI Automatic trim typically included a generous array of standard features. These commonly included air conditioning, power windows and locks, a touchscreen infotainment system with Bluetooth connectivity, a rearview camera, and alloy wheels. Higher trim levels, such as the Limited, added features like leather upholstery, a panoramic sunroof, heated and ventilated front seats, and a premium audio system. Optional extras often included navigation, advanced safety features like blind-spot monitoring and lane departure warning, and upgraded wheel designs. The interior design was modern and well-appointed, with a focus on providing a comfortable and user-friendly environment.
Chassis & Braking
The Optima 2.4 GDI Automatic utilized a front-wheel-drive layout with an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear. This suspension setup provided a good balance of ride comfort and handling. The braking system consisted of ventilated discs in the front and solid discs in the rear, equipped with an Anti-lock Braking System (ABS). The steering was a rack-and-pinion system, providing reasonably precise steering feel. The chassis was designed to provide a stable and secure driving experience, prioritizing comfort and safety over sporty handling.
Market Reception & Comparison
The Kia Optima 2.4 GDI Automatic was generally well-received by automotive critics. It was praised for its stylish design, spacious interior, and long list of standard features. Fuel economy was considered competitive for its class, averaging around 27 mpg in combined driving. Compared to other trims in the Optima lineup, the 2.4 GDI offered a good balance of performance and efficiency, making it a popular choice for families and commuters. The 2.0T offered more performance, but at a higher price point and with slightly lower fuel economy. The base 2.0-liter engine was more affordable, but lacked the power and refinement of the 2.4 GDI.
Legacy
The Kia Optima 2.4 GDI Automatic has proven to be a relatively reliable vehicle in the used car market. The G4KJ engine is generally considered durable, although some owners have reported issues with oil consumption over time. The six-speed automatic transmission has also proven to be fairly reliable, with few widespread issues reported. Today, these Optimas represent a good value for buyers seeking a comfortable, well-equipped, and affordable mid-size sedan. Their continued presence on the road is a testament to Kia’s improved build quality and the Optima’s overall appeal.
