Why is the fuel consumption of Civic getting higher and higher?
2 Answers
Increasing fuel consumption in a car may be due to reasons such as excessive carbon deposits or insufficient tire pressure. Insufficient tire pressure increases the contact area between the tires and the ground, leading to greater friction and thus higher driving resistance, which in turn increases fuel consumption. Excessive carbon deposits can be addressed by cleaning the throttle and fuel injectors. Insufficient tire pressure can be resolved by inflating the tires to the standard level. Additional information is as follows: 1. Poor driving habits: Poor driving habits can also increase fuel consumption. During daily driving, especially in heavy traffic, at red lights, or when changing lanes, it is common to see behaviors such as sudden acceleration and abrupt stops. Performing these actions four or five times can increase fuel consumption by 2 to 3 times compared to driving at a constant speed. Frequent sudden braking is a major cause of persistently high fuel consumption in cars. 2. Long-distance driving at high speeds in low gears: The habit of driving long distances at high speeds in low gears can increase fuel consumption. For example, driving long distances at high speeds in third gear can increase fuel consumption by 0.1 compared to driving normally in fourth gear. Using second gear instead of third gear for driving will further increase fuel consumption.
I think there could be several reasons why the Civic's fuel consumption is getting higher. In terms of the ignition system, aging spark plugs may fail to ignite properly, leading to incomplete combustion and wasted fuel. If the tire pressure is insufficient, increased friction and rolling resistance force the engine to work harder, raising fuel consumption. A clogged air filter restricts airflow, lowering combustion efficiency and naturally increasing fuel usage. Engine carbon buildup over time can clog fuel injectors, disrupting the fuel-air mixture ratio and causing higher fuel consumption. Aggressive driving habits like sudden acceleration or frequent braking also consume more fuel. Additionally, a faulty oxygen sensor can mislead the engine control unit into increasing fuel supply, resulting in sustained high consumption. I recommend doing simple checks yourself, like inspecting tire pressure or spark plug condition, adopting smoother driving habits, and regularly visiting professional shops for fuel system cleaning and component maintenance. Small investments can save big money by preventing minor issues from escalating into major repair expenses.
