What Causes a Sudden Increase in Fuel Consumption for Nissan Sylphy?

[EmilyLee]

Reasons for a sudden increase in fuel consumption in Nissan Sylphy: 1. Tire Pressure: Insufficient tire pressure or tire wear can cause increased friction between the tires and the ground, leading to higher resistance and increased fuel consumption. 2. Tires: Severely worn tires may frequently slip, also resulting in higher fuel consumption. 3. Fuel Quality: Pay attention to fuel quality and regularly clean carbon deposits. Poor-quality gasoline can lead to excessive carbon buildup, which roughens the intake pipe walls, affecting air intake efficiency and mixture quality, causing a sharp rise in fuel consumption. 4. Oxygen Sensor: Regularly inspect the oxygen sensor. If damaged, the electronic fuel injection system's computer cannot receive information about oxygen concentration in the exhaust pipe, often resulting in a higher mixture concentration in the engine and increased fuel consumption.