What are the components that affect fuel consumption?

[LaMartin]

Mainly include tires, spark plugs, and oxygen sensors. Detailed introduction is as follows: Tires: When the tire pressure is below the standard pressure, it increases rolling resistance and enlarges the contact area between the tires and the ground, which not only accelerates tire wear but also increases fuel consumption. If the tire pressure is normal, check the tire wear condition. Spark plugs: Aging spark plugs can also increase fuel consumption. Common issues with spark plugs include carbon buildup and natural aging. Resistance spark plugs generally need replacement every 20,000 kilometers, platinum spark plugs every 40,000 kilometers, and iridium spark plugs every 60,000 to 80,000 kilometers. Oxygen sensor: The oxygen sensor monitors the oxygen concentration in the exhaust pipe and sends feedback signals to the ECU. The ECU then controls the fuel injector's fuel injection volume based on these signals. If the oxygen sensor malfunctions, it can cause excessive fuel injection, leading to a rich air-fuel mixture and increased fuel consumption.