Why does the average fuel consumption fluctuate?
3 Answers
If the fuel consumption display fluctuates and the numbers jump around, it's because the interface has been adjusted to the instantaneous fuel consumption display. Here are some related extended information: 1. Working principle: The car's average fuel consumption is determined by the onboard computer based on acceleration levels. The average fuel consumption value calculates the actual fuel consumption when the engine speed varies. Average fuel consumption is the average fuel consumption per 100 kilometers, and it varies depending on the actual driving conditions. 2. Regular maintenance: Regular car maintenance also affects the vehicle's fuel consumption and lifespan. A car can accumulate a lot of carbon deposits, leading to insufficient engine combustion. At this point, engine maintenance is needed to clean the carbon deposits, and then the fuel consumption will naturally not fluctuate due to improper or insufficient maintenance.
I've been driving for many years and often encounter fluctuations in fuel consumption, mainly due to changes in driving habits. For example, sudden acceleration or hard braking during city commuting increases engine load, causing fuel consumption to spike; whereas maintaining a steady speed on highways actually reduces it. Weather also plays a significant role—cold weather slows engine warm-up, leading to higher fuel consumption, while using air conditioning in hot weather adds extra load. Additionally, insufficient tire pressure increases rolling resistance, consuming about 0.5 liters more fuel per kilometer. I believe regular checks on these aspects, such as measuring tire pressure and cleaning the air filter, can stabilize fuel consumption. Over time, engine carbon buildup is another factor; occasionally adding a cleaning agent can help prevent it. In short, developing good driving habits, avoiding impulsive overtaking, and paying attention to dashboard data can make a difference.
As a young driver who's always on the road, I'm particularly sensitive to fuel consumption fluctuations. During short-distance driving when the engine hasn't fully warmed up, fuel consumption is about 10% higher than normal; in stop-and-go traffic, the fuel efficiency constantly fluctuates. With AC running at full blast in summer, fuel consumption increases noticeably; winter also brings decreased fuel efficiency. Using a mobile app to monitor fuel consumption, I noticed greater fluctuations when the air filter is dirty or there are spark plug issues. Solutions include minimizing short trips, controlling AC usage frequency, and choosing high-quality gasoline. Regular maintenance is crucial - cleaning the air filter and checking the electrical system can save money while being eco-friendly. Plan routes carefully before long trips to avoid frequent starts and stops. This not only saves fuel costs but also extends vehicle lifespan.
