Why is the Tiida consuming more fuel?
2 Answers
Regarding the reasons why the Tiida is consuming more fuel, the following explanations are provided: 1. Insufficient tire pressure and wear: Low tire pressure will increase fuel consumption, and severe tire wear can frequently cause slipping, which also increases fuel consumption. 2. Excessive carbon buildup in the engine: A significant amount of carbon deposits in the engine can lead to higher fuel consumption. This is often caused by using substandard fuel. It is recommended to add a certain amount of cleaning agent when refueling or to visit a repair shop for engine carbon cleaning. 3. Damaged oxygen sensor: The oxygen sensor primarily monitors the air-fuel ratio in the engine. If it is damaged, the air-fuel ratio will become unbalanced, leading to abnormally high fuel consumption. When the oxygen sensor is damaged, the exhaust pipe will emit darker-colored exhaust gases during driving, and the sensor should be replaced promptly. 4. Malfunction in a control unit of the engine: The electronic control unit in the engine may fail in older vehicles. If the control unit malfunctions, it can result in increased fuel consumption, accompanied by poor performance and thick, black exhaust emissions.
After driving the Tiida for several years, I noticed the fuel consumption has gradually increased, probably because the car is getting old and the engine is starting to slack. It could be due to worn-out spark plugs or a faulty oxygen sensor, which should be replaced regularly to ensure complete fuel combustion. A clogged air filter can also make it harder for the engine to breathe, leading to higher fuel consumption. Additionally, if the engine oil isn’t changed for a long time, its viscosity increases, forcing the engine to work harder and consume more fuel. Last year, I neglected to clean the carbon deposits, and the car felt sluggish, especially during acceleration. Fuel consumption was also higher in summer than in winter, possibly due to increased use of the air conditioning, which affects performance. These issues can easily lead to a vicious cycle if left unchecked. I recommend taking the car to a mechanic for inspection and replacing any worn parts to ensure smooth and safe driving, which ultimately saves fuel and peace of mind.
