2018 Mazda 6 III Sedan (GJ facelift ) 2.5 SKYACTIV-G (227 Hp) Automatic

The Mazda 6 III Sedan (GJ series), particularly the facelifted version introduced in 2018, represented a significant evolution of Mazda’s mid-size offering. This generation, produced from 2012-2021, aimed to blend sporty driving dynamics with premium interior appointments. The 2.5-liter SKYACTIV-G variant, producing 227 horsepower and paired with a six-speed automatic transmission, was positioned as a top-tier trim level in the North American market, offering a balance of performance and refinement. It served as a direct competitor to vehicles like the Honda Accord, Toyota Camry, and Ford Fusion.

Technical Specifications

Introduction

The 2018 Mazda 6 2.5 SKYACTIV-G Automatic represented the culmination of Mazda’s engineering efforts to create a mid-size sedan that prioritized driver engagement and sophisticated styling. The “SKYACTIV” technology suite, encompassing engine, transmission, chassis, and body design, was central to this goal. This particular variant, with its 2.5-liter engine and automatic transmission, was a key offering in the North American market, where larger displacement engines were preferred. It built upon the GJ platform, which debuted in 2012, with the 2018 facelift bringing revised styling, enhanced safety features, and refinements to the interior.

Powertrain & Engine Architecture

At the heart of this Mazda 6 variant lies the PYZ4 engine, a 2.5-liter inline-four cylinder gasoline engine. This engine is a cornerstone of Mazda’s SKYACTIV technology, designed for high compression (13:1) and efficient combustion. It utilizes direct injection, maximizing fuel atomization and improving power output. The engine also features a sophisticated dual overhead camshaft (DOHC) valvetrain with variable valve timing (VVT) on both intake and exhaust camshafts, optimizing performance across the rev range. The addition of a turbocharger and intercooler further enhances power and torque. The six-speed automatic transmission, also part of the SKYACTIV suite, is designed for smooth and responsive shifting. It features a torque converter lock-up clutch that engages across a wider range of speeds, improving fuel efficiency. The transmission’s programming is tuned to balance performance and comfort, offering both manual shift control and a drive mode selector.

Driving Characteristics

The 227 horsepower and 309.78 lb-ft of torque delivered by the 2.5-liter engine and automatic transmission provided a noticeable step up in performance compared to the base 2.0-liter engine option. While not as overtly sporty as a manual transmission-equipped model, the automatic offered brisk acceleration and effortless highway cruising. The six-speed automatic transmission was well-matched to the engine’s powerband, providing smooth and timely shifts. The gear ratios were optimized for both fuel economy and responsiveness. Compared to the manual transmission, the automatic prioritized ease of use and comfort, making it a popular choice for daily commuting and long-distance travel. The SKYACTIV chassis, with its well-tuned suspension, contributed to a composed and engaging driving experience, offering a good balance between ride comfort and handling precision.

Equipment & Trim Levels

The 2.5-liter SKYACTIV-G Automatic trim typically came well-equipped, often representing the upper echelon of the Mazda 6 lineup. Standard features generally included leather upholstery, a power-adjustable driver’s seat, a premium audio system (often Bose), a touchscreen infotainment system with navigation, and a suite of advanced safety features like Mazda’s i-ACTIVSENSE package. This package included features such as adaptive cruise control, lane departure warning, lane-keep assist, and automatic emergency braking. Optional extras could include a power moonroof, heated and ventilated front seats, and a rear cross-traffic alert system. Interior materials were generally of high quality, contributing to a premium feel.

Chassis & Braking

The Mazda 6 utilized a front-engine, front-wheel-drive layout. The suspension consisted 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 provided a good balance of ride comfort and handling stability. Braking duties were handled by ventilated discs at the front and solid discs at the rear. The braking system was equipped with ABS (Anti-lock Braking System) and electronic brake-force distribution (EBD) for enhanced safety. The steering system employed an electric power steering (EPS) system, providing precise and responsive steering feel.

Market Reception & Comparison

The 2018 Mazda 6 2.5 SKYACTIV-G Automatic was generally well-received by automotive critics. It was praised for its stylish design, engaging driving dynamics, and refined interior. Fuel economy was considered competitive for its class, achieving around 26.1 US mpg combined. Compared to other trims in the Mazda 6 lineup, the 2.5-liter variant offered a significant performance advantage, but at a slightly higher price point. The 2.0-liter engine was more fuel-efficient but lacked the same level of power. Reliability reports generally indicated good long-term dependability, although some owners reported minor issues with the infotainment system.

Legacy

The 2.5-liter SKYACTIV-G engine and six-speed automatic transmission combination proved to be a durable and reliable powertrain. In the used car market, these Mazda 6 models continue to be sought after for their blend of performance, fuel efficiency, and overall refinement. The SKYACTIV technology, pioneered in this generation, has become a hallmark of Mazda vehicles, influencing subsequent models. The 2018 facelifted Mazda 6 solidified the brand’s reputation for creating vehicles that are enjoyable to drive and offer a premium ownership experience.