Buying a car is straightforward, but maintaining it can be challenging. For many, especially working-class individuals, fuel costs, alongside maintenance fees and insurance premiums, are a significant concern.

But after buying a car, many friends have encountered the phenomenon of a sudden increase in the car's fuel consumption. So what is the reason for the high fuel consumption of the car? Today let’s talk about car fuel consumption.

<b>1. Excessive carbon deposits in the engine:</b> Carbon deposits will seriously affect the performance of the engine, leading to insufficient fuel combustion, thereby increasing fuel consumption. Causes of carbon deposits may include using inappropriate oil, driving at low speeds for a long time, idling for a long time, etc.

<b>2. The vehicle oxygen sensor is damaged:</b> The oxygen sensor is an internal control unit of the car and is used to monitor the engine oil and gas ratio. If the oxygen sensor is damaged, it will cause the engine oil and gas ratio to be out of balance, thereby increasing fuel consumption.

<b>3. The "three filters" not replaced timely:</b> During the use of the vehicle, the machine filter, air filter, and oil filter must be replaced regularly. If they are not replaced for a long time, these filters will become dirty, affect their use, and send wrong messages to the engine control unit, resulting in insufficient fuel combustion and increased carbon deposits in the engine.

<b>4. Clutch slipping:</b> Clutch slipping will cause the engine speed to be lost, causing the vehicle speed to increase slowly, thereby increasing fuel consumption.

<b>5. Substandard tire pressure:</b> Under-inflated tires can lead to increased fuel consumption. Therefore, when you find that the car's sliding distance is significantly reduced while driving, you should check whether the tire pressure meets the air pressure standards.

<b>6. The spark plug is used for too long:</b> A damaged spark plug will reduce the ignition energy and slow down the vehicle speed, resulting in a significant increase in gasoline consumption. Therefore, when any abnormality is found in the spark plug, it should be replaced in time.

<b>7. Engine electronic control unit issue:</b> If there is a problem with the engine's electronic control unit, it will directly lead to difficulty in starting the vehicle, increased fuel consumption, poor power, and thick black exhaust gas.

In daily life, high fuel consumption in cars may be caused by many reasons, such as carbon deposits in the engine, sensor failure, and failure to replace filters in time. Therefore, timely maintenance and upkeep are key to ensuring normal vehicle operation and reducing fuel consumption.

Regularly checking the vehicle and keeping the engine and related systems in good condition can effectively reduce fuel consumption, extend the service life of the vehicle, and save drivers a lot of money. Proper investment in car maintenance not only enhances your driving experience but also makes it more economical.