
The Atenza is equipped with a PY engine model, delivering a maximum horsepower of 192 HP, a maximum power output of 141 KW at 6100 rpm, and a peak torque of 252 Nm. The Atenza's engine is imported from Japan and incorporates Mazda's SKYACTIV technology. For daily of the Atenza's engine, the following methods can be applied: Use lubricating oil of the appropriate quality grade. For gasoline engines, select SD--SF grade gasoline engine oil based on the additional equipment in the intake and exhaust systems and usage conditions; for diesel engines, choose CB--CD grade diesel engine oil according to mechanical load, with the selection standard being no lower than the manufacturer's specified requirements. Regularly change the engine oil and filter. The quality of any grade of lubricating oil will deteriorate during use. After a certain mileage, performance degradation can lead to various engine issues. To prevent malfunctions, change the oil regularly according to usage conditions and maintain an appropriate oil level. When oil passes through the fine pores of the filter, solid particles and viscous substances accumulate in the filter. If the filter becomes clogged and oil cannot pass through the filter element, it may rupture the filter element or open the safety valve, allowing oil to bypass through the relief valve and carry contaminants back to the lubrication points, accelerating engine wear and increasing internal contamination. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal particles from component wear to form sludge. Small amounts remain suspended in the oil, while larger amounts precipitate, clogging filters and oil passages, making engine lubrication difficult and causing wear. Periodically use a radiator cleaner to flush the radiator. Removing rust and scale deposits not only ensures normal engine operation but also extends the overall lifespan of the radiator and engine.

I'm particularly fascinated by Mazda's Skyactiv Technology, and the Atenza (Mazda6) uses engines from this very system. Most Atenzas you see on the road in China are powered by the 2.5-liter naturally aspirated four-cylinder engine, though there's also a 2.0-liter option available. The most impressive aspect of this engine is its ability to achieve a high compression ratio of 13:1, which sounds pretty wild, right? But in reality, it runs perfectly fine on regular 92-octane gasoline—no need for premium fuel. Mazda's clever 4-2-1 exhaust layout also plays a key role in effectively lowering cylinder temperatures and preventing knocking. In terms of driving feel, the power delivery is incredibly smooth. While it might not pack the punch of turbocharged engines, when you stomp on the gas, the revs climb eagerly, and that linear acceleration paired with the Atenza's precise handling makes for an instant dose of driving fun. I've also noticed that newer models have added cylinder deactivation for better fuel efficiency, which is especially handy on highways.

I've been driving the Atenza for over three years now and feel particularly familiar with its engine. It's powered by Mazda's own Skyactiv-G gasoline engine, which the company invested heavily in developing. The defining characteristic of this engine series is its exceptionally intelligent balance between power and fuel efficiency. Take my 2.5L version for example - it delivers up to 192 horsepower with around 252 Nm of torque. When you drive it, you'll notice the power delivery isn't the explosive type, but rather builds progressively, especially after passing 4000 RPM where you can clearly feel the strong pulling power accompanied by a deep, satisfying engine note. Despite being naturally aspirated, its fuel consumption is remarkably well controlled - I typically get about 8-9L/100km in stop-and-go city commuting, and even better efficiency during highway cruising. Mazda's efforts on this engine truly deserve praise.

If you're a tech enthusiast, you'll definitely be interested in the Skyactiv-G engine of the Mazda6 Atenza. has squeezed remarkable performance out of it. The core principle is achieving an ultra-high compression ratio of 13:1, while ingeniously solving the traditional issues of high-compression engines being prone to knocking and requiring high-octane fuel. It employs a specially designed 4-2-1 long exhaust manifold, which reduces exhaust resistance, ensures thorough exhaust gas evacuation, minimizes residual exhaust, and significantly improves combustion efficiency. The high-pressure direct fuel injection ensures uniform and thorough air-fuel mixture, which is key to both fuel efficiency and power. The spark plugs provide fast and reliable ignition during startup, reducing cold-start difficulties. The pistons and connecting rods feature lightweight designs to reduce internal losses, resulting in naturally more responsive throttle. This naturally aspirated engine truly rivals some turbocharged engines in terms of efficiency.

My family owns a red 2020 Mazda6 (Atenza) equipped with the 2.5L Skyactiv-G engine. The first impression when driving it is how remarkably 'responsive' it feels - the throttle delivers power precisely as you press it, making driving effortless and enjoyable. The 6-speed automatic transmission tuned by works in perfect harmony with this engine, shifting quickly and smoothly with almost no noticeable jerkiness. The engine note is also pleasing - not noisy but rather a deep, sporty growl. As a family car, it offers adequate space, nimble handling, and most importantly, manageable ownership costs with reasonable maintenance expenses and fuel-efficient performance. This powertrain truly provides both comfort and driving engagement for our family trips.

Car enthusiasts may know that the Atenza (Mazda6) follows a sporty sedan approach, and its 'heart'—the Skyactiv engine—plays a crucial role. Unlike common turbocharged engines, chose to refine naturally aspirated technology and has made a name for itself. This four-cylinder gasoline engine (2.0L or 2.5L) employs techniques such as high compression ratio, precise direct fuel injection, optimized valve timing, and friction-reduction technology. The core goal is to convert every drop of fuel into effective power as efficiently as possible. As a result, it retains the smooth, linear advantages of traditional naturally aspirated engines while meeting today's stringent environmental and fuel-efficiency requirements. The seamless driving feel and 'driver-car connection' it offers are experiences that many turbocharged cars can't match.


