How to Solve the Issue of Nissan Sylphy Classic Consuming 10L/100km?

2 Answers
DakotaFitz
07/25/25 7:31am
Fuel consumption increase is closely related to tires. Generally, the larger the contact area between the tires and the ground, the stronger the grip. The main function of the oxygen sensor is to monitor the oxygen concentration in the exhaust. The vehicle's computer will adjust the fuel injection amount in real-time based on the data it provides. Carbon deposits inside the engine can cause unstable idling and reduced machine efficiency, leading to increased fuel consumption. Poor driving habits are also a reason for increased fuel consumption, such as sudden acceleration, sudden braking, and abrupt stops.
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VonFinley
08/10/25 6:34pm
Recently I saw you asking about the Classic Sylphy's fuel consumption soaring to 10L/100km. Having driven older cars for many years, I've encountered similar situations. I remember when I first bought my car, the fuel consumption was also high. Later I realized the key lies in driving habits: sudden acceleration and stomping on the gas pedal greatly increase engine load, wasting fuel; frequent starts in traffic jams are even worse. I changed to smooth starts, anticipating road conditions in advance to decelerate, and now my fuel consumption has dropped to around 7L. Additionally, inadequate car maintenance is another reason - like not replacing a dirty air filter restricts engine airflow; aged engine oil also affects efficiency. I recommend doing minor checks every 5,000km - you can clean filters or change oil yourself, saving hassle and money. Finally, don't underestimate tires - insufficient tire pressure can increase fuel consumption by 10%. I always keep a tire pressure gauge and inflate according to standards. If all these don't help, promptly visit a professional shop to check for engine carbon buildup or fuel system issues - don't let small problems escalate. Develop good habits and gradual improvement will come - my current car only uses 6L/100km on highways, and driving has become much more relaxed.
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