Why is the fuel consumption of the old Mazda 6 so high?
3 Answers
The high fuel consumption of the old Mazda 6 can be attributed to several factors, including the use of low-quality fuel and severe engine carbon buildup. Here is some related information about fuel consumption: 1. Fuel consumption per 100 kilometers: Fuel consumption per 100 kilometers refers to the amount of fuel a vehicle consumes when driving at a certain speed for 100 kilometers on the road. It is a theoretical indicator for vehicles. Manufacturers measure this value under controlled conditions using a dynamometer installed on the vehicle's chassis, converting it into speed parameters. They then calculate the theoretical experimental fuel consumption per 100 kilometers for the model by driving at specified speeds. 2. Road condition fuel consumption: Road condition fuel consumption is a fuel indicator calculated by repeatedly testing a vehicle driving on specified roads at regulated speeds and times. It is also known as multi-condition road cycle fuel consumption. The standard specifies that each cycle includes various driving conditions and records metrics such as gear shift timing, parking time, driving speed, acceleration, braking, and deceleration. This method provides values that are closer to real-world conditions.
As a former owner of an older Mazda6, I found that high fuel consumption is mainly due to engine aging. The engine in this car was designed over a decade ago and wasn't very efficient to begin with; as the vehicle ages, internal engine seals wear out, compression ratios drop, leading to incomplete combustion and wasted fuel. Transmission wear also affects shift smoothness, often keeping the car in lower gears and increasing fuel consumption. Additionally, severe carbon buildup in the fuel system and poor fuel injector atomization can drive up fuel usage. I recommend regular fuel injector cleaning, oxygen sensor checks, ensuring clean air filters, and tight engine mounts; while driving, avoid sudden acceleration and braking - smooth driving saves fuel. Overall maintenance is crucial - don't wait until problems become serious to fix them.
When driving an old Mazda6 with high fuel consumption, I believe driving habits are a major factor. If you usually drive too aggressively, sudden acceleration or braking can cause unstable engine RPM and skyrocket fuel consumption. This older car responds slowly, and engine idling during acceleration consumes even more fuel. Maintaining a steady speed of 70-80 km/h on highways is ideal; in city traffic, try to minimize sudden starts and stops by gently pressing the accelerator. Also, avoid accelerating immediately after a cold start—let the engine warm up for a few minutes. Maintenance-wise, a dirty air filter can also reduce efficiency, but the key is to drive smoothly. Developing a steady driving style can significantly improve fuel economy.
