Why is the fuel consumption of the old Mazda 6 so high?
2 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.
