Reasons for Increased Fuel Consumption
2 Answers
Generally, it is caused by temperature and lack of engine maintenance. Below are the relevant explanations: 1. Temperature impact: Fluctuations in fuel consumption due to temperature changes are normal. In winter, lower temperatures typically lead to slightly higher fuel consumption, almost comparable to using air conditioning in summer. This is because low temperatures increase heat dissipation from the engine. To maintain a constant operating temperature, the engine burns more gasoline to generate heat, which is wasted as it doesn't contribute to work output, thus increasing fuel consumption unavoidably. Additionally, winter warm-up times are longer, requiring more time and gasoline from cold start until normal water temperature is reached. 2. Prolonged lack of vehicle maintenance: Dirty engine oil and air filters can also increase fuel consumption. Dirty oil leads to poor lubrication, increasing resistance in engine moving parts and requiring more energy to overcome it, thereby raising fuel consumption. A dirty air filter restricts airflow, first requiring more energy for intake and second leading to incomplete combustion as insufficient air results in unburned gasoline being expelled, naturally requiring more fuel for the same distance traveled.
My car's fuel consumption has suddenly increased, and I think it's mainly due to driving habits. For example, I usually like to drive fast, and when in a hurry, I tend to stomp on the accelerator and brakes. Every time the car accelerates, it consumes a lot of fuel, and when decelerating, energy is wasted. The air conditioning is used too frequently, especially in summer. Turning on the cold air forces the engine to work extra hard, immediately increasing fuel consumption. In winter, blasting the heater also consumes a lot of fuel. Low tire pressure is a common issue—when unnoticed, the flatter tires increase rolling resistance, making the car harder to pull, and fuel consumption naturally spikes. Also, neglecting to check the air filter for a long time leads to clogging with dust, restricting airflow and forcing the engine to burn more fuel due to lack of oxygen. From my own experience, after regular maintenance and replacing the spark plugs, the car runs much smoother and fuel consumption drops. When driving, try to maintain a steady speed, avoid racing, and coast early when approaching a red light. This can save a lot on fuel costs and extend the car's lifespan. Remember, rushing is the easiest way to increase fuel consumption.
