The Mazda 6 III Sedan (GJ series), particularly the facelifted version introduced in 2018, represented a significant evolution of Mazda’s mid-size offering. The 2.5 SKYACTIV-G variant, producing 250 horsepower and paired with a six-speed automatic transmission, was positioned as the premium engine choice within the North American market. Production of this specific configuration began in 2018 and continued through the end of the GJ generation’s run, offering a blend of performance, refinement, and Mazda’s signature driving dynamics. This model aimed to compete directly with established players like the Honda Accord, Toyota Camry, and Ford Fusion, offering a more engaging driving experience and a more upscale interior.
Technical Specifications
| Brand | Mazda |
| Model | 6 |
| Generation | III Sedan (GJ, facelift 2018) |
| Type (Engine) | 2.5 SKYACTIV-G (250 Hp) Automatic |
| Start of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.2 l/100 km (23.1 US mpg) |
| Fuel consumption (extra urban) | 7.6 l/100 km (30.9 US mpg) |
| Fuel consumption (combined) | 9 l/100 km (26.1 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.5 kg/Hp, 154.8 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 260.1 Nm/tonne |
| Power | 250 Hp @ 5000 rpm |
| Power per litre | 100.5 Hp/l |
| Torque | 420 Nm @ 2000 rpm (309.78 lb.-ft. @ 2000 rpm) |
| Maximum engine speed | 6300 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | PYZ4 |
| Engine displacement | 2488 cm3 (151.83 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 100 mm (3.94 in.) |
| Compression ratio | 13:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC-VVT |
| Engine oil capacity | 4.8 l (5.07 US qt | 4.22 UK qt) |
| Coolant | 8.3 l (8.77 US qt | 7.3 UK qt) |
| Kerb Weight | 1615 kg (3560.47 lbs.) |
| Trunk (boot) space (minimum) | 416 l (14.69 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Length | 4895 mm (192.72 in.) |
| Width | 1839 mm (72.4 in.) |
| Height | 1450 mm (57.09 in.) |
| Wheelbase | 2830 mm (111.42 in.) |
| Front track | 1595 mm (62.8 in.) |
| Rear track | 1585 mm (62.4 in.) |
| Ride height (ground clearance) | 165 mm (6.5 in.) |
| Drivetrain Architecture | 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 |
| Tires size | 225/45 R19 |
| Wheel rims size | 7.5J x 19 |
Powertrain & Engine Architecture
The heart of this Mazda 6 variant is the PYZ4 2.5-liter inline-four cylinder engine. This engine is a key component of Mazda’s SKYACTIV technology, designed to maximize efficiency and performance. It features direct injection, a high compression ratio of 13:1, and a sophisticated dual overhead cam (DOHC) valvetrain with variable valve timing (VVT) on both intake and exhaust camshafts. The addition of a turbocharger and intercooler significantly boosts power output to 250 hp and 310 lb-ft of torque. The engine’s design prioritizes a broad torque curve, making it responsive in everyday driving situations. The six-speed automatic transmission, also part of the SKYACTIV suite, is tuned for smooth shifts and efficient operation. It features a torque converter lock-up clutch that engages across multiple gears to reduce slippage and improve fuel economy.
Driving Characteristics
The 2.5-liter turbocharged engine and six-speed automatic combination delivers a noticeably more spirited driving experience compared to the naturally aspirated 2.5-liter engine offered in lower trims. Acceleration is brisk, and the engine provides ample power for highway passing and merging. The automatic transmission is generally responsive, although some reviewers noted a slight hesitation during downshifts. The gear ratios are well-chosen to balance performance and fuel efficiency. Compared to manual transmission versions, the automatic offers greater convenience, particularly in urban traffic, but sacrifices some driver engagement. The suspension tuning, common across most Mazda 6 variants, provides a comfortable ride without sacrificing handling precision.
Equipment & Trim Levels
The 2.5T trim, as this variant was often designated, typically included a comprehensive list of standard features. These generally included leather upholstery, a power-adjustable driver’s seat, a premium sound system (often Bose), a navigation system, and a suite of advanced safety technologies such as adaptive cruise control, lane departure warning, and automatic emergency braking. Optional extras often included a power sunroof, heated and ventilated front seats, and a 360-degree view monitor. Interior materials were generally of high quality, contributing to the upscale feel of the cabin.
Chassis & Braking
The Mazda 6 utilizes a front-engine, front-wheel-drive layout. The suspension consists of an independent McPherson strut setup at the front and an independent multi-link setup at the rear, both incorporating coil springs and anti-roll bars. This configuration provides a good balance of ride comfort and handling stability. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The braking system is augmented by ABS (Anti-lock Braking System), electronic brake-force distribution (EBD), and brake assist. Steering is provided by an electric power steering system, offering a responsive and precise feel.
Market Reception & Comparison
The 2.5T Mazda 6 received generally positive reviews from automotive critics. It was praised for its stylish design, engaging driving dynamics, and upscale interior. Fuel economy was considered competitive for its class, although not class-leading. Compared to the base 2.5-liter engine, the turbocharged version offered a significant performance upgrade, justifying the higher price tag for many buyers. Reliability reports have been generally favorable, with few widespread issues reported for this powertrain. However, like any turbocharged engine, proper maintenance, including regular oil changes with the correct specification oil, is crucial for long-term reliability.
Legacy
The 2.5 SKYACTIV-G turbocharged engine became a hallmark of the Mazda 6’s later years. The powertrain proved to be relatively durable, and well-maintained examples continue to be sought after in the used car market. While not as ubiquitous as some of its competitors, the Mazda 6 2.5T established a reputation for offering a unique blend of style, performance, and refinement. Its legacy lies in demonstrating Mazda’s commitment to creating vehicles that are enjoyable to drive and offer a premium ownership experience. The engine’s technology also paved the way for future Mazda powertrains, continuing the brand’s focus on efficiency and responsiveness.
