Why does the Mazda 6 have high fuel consumption?

3 Answers
LeilaniDella
07/29/25 1:58pm
Mazda 6 has high fuel consumption for the following reasons: 1. The quality of the fuel added is too low: When the fuel quality added to the car is too low, the fuel and mixed gas cannot fully burn in the engine, resulting in some fuel waste, which leads to an increase in the car's fuel consumption. 2. The driver drives too aggressively: When the driver drives too aggressively, the engine speed tends to be relatively high, making it easy for the car engine to overload, thus increasing fuel consumption. 3. Severe engine carbon buildup: When the engine carbon buildup is too severe, the fuel cannot be transported normally, so the car will show symptoms of increased fuel consumption and weakened power. 4. The car's self-weight is too large: When the car's self-weight is too large, it increases the burden on the engine, leading to higher fuel consumption.
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DiPeyton
08/13/25 5:35am
I drive my Mazda6 to work in the city every day, and the high fuel consumption is really annoying. The traffic during morning and evening rush hours is terrible, with the car only able to crawl, and the engine idling wastes fuel. The average speed is less than 20 km/h, and the fuel consumption soars to over 10 liters. In summer, turning on the air conditioning makes it even worse, increasing fuel consumption by 30%. Frequent braking and accelerating result in low combustion efficiency, and the engine is always in an uneconomical state. I've tried adjusting my driving habits, like gently pressing the accelerator and avoiding sudden acceleration, and leaving early to avoid peak hours, which barely reduces fuel consumption to 8 liters. I suggest carpooling or taking public transport to share the cost and save some money. That's just how city driving is—it's impossible to completely avoid, but learning to adapt can ease the burden.
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AuroraLee
10/10/25 6:21am
As a car enthusiast, I've found that the Mazda6's high fuel consumption is related to its engine design. The older models used a naturally aspirated system, which is less efficient than modern turbocharged engines. The cylinder block loses heat quickly, leading to incomplete combustion and wasted fuel. While it provides sufficient torque at low RPMs, fuel consumption increases at high speeds due to simple intake and exhaust layouts with insufficient optimization. I tried cleaning the throttle body and replacing the spark plugs with high-efficiency ones, which slightly reduced fuel consumption by half a liter. The chassis has high aerodynamic drag and is heavy, making it even more fuel-consuming during high-speed cruising. Regular maintenance, including oil changes and tire pressure checks, can help maintain fuel economy. Although the tuning leans towards sporty driving pleasure, it sacrifices fuel efficiency, making it less friendly for daily commuting.
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