What Causes the Fuel Consumption on the Dashboard to Fluctuate?

1 Answers
JosephineFitz
07/30/25 7:06am
The reasons for fluctuating fuel consumption on the dashboard: it may display instantaneous fuel consumption, switch to average fuel consumption for a stable reading; it could also be that the average fuel consumption was reset, leading to recalculation, which initially shows large fluctuations but stabilizes after driving a few hundred kilometers. Factors causing fluctuating fuel consumption in cars: 1. The age of the car: new cars generally have lower fuel consumption, but as the car ages, especially after 5 to 10 years, fuel consumption gradually increases; 2. The level of car maintenance: carbon buildup can cause incomplete combustion in the engine. Proper engine maintenance and carbon cleaning can prevent fluctuating fuel consumption due to poor or insufficient maintenance.
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