After how many years will a car start consuming more fuel?
2 Answers
Cars typically start consuming more fuel after 2-10 years of use. Below is a detailed introduction about a car's fuel consumption per 100 kilometers: 1. Overview: Fuel consumption per 100 kilometers refers to the amount of fuel a vehicle consumes when traveling 100 kilometers on the road at a certain speed. It is a theoretical indicator for vehicles. Manufacturers measure this value under controlled conditions using a dynamometer installed on the vehicle's chassis, converting it into speed parameters, and then calculating the theoretical experimental fuel consumption per 100 kilometers for the model at specified speeds. 2. Additional Information: Since most vehicles approach their most economical speed at around 90 km/h, the publicly announced theoretical fuel consumption is usually based on the fuel consumption per 100 kilometers at 90 km/h.
After driving a taxi for 15 years, I've summarized the pattern of increasing fuel consumption: the first two years with a new car are the most fuel-efficient, and the third year is a turning point. Once, my car's displayed fuel consumption suddenly increased by 2 liters, and upon inspection, it was due to severe carbon buildup on the spark plugs causing decreased ignition efficiency. Now, I check the catalytic converter and oxygen sensor every 30,000 kilometers, as aging of these components can cause fuel consumption to surge by more than 10%. It's recommended to pay special attention to the condition of the transmission fluid and throttle carbon buildup, especially for cars frequently driven in urban areas. After five years, it's best to perform a comprehensive fuel system cleaning, which can save at least 15% on fuel costs.
