What factors will affect car fuel consumption? Old drivers share dry goods.

In the last issue, we analyzed the influence of automobile hardware technology and technical level on fuel consumption. In this issue, we will analyze the influence of automobile wearing parts and human factors on fuel consumption.

① Oil filter

The mechanical oil filter is a consumable, which needs to be inspected and replaced every time. If the oil filter is not replaced in time, it will have a great impact on the lubrication of the engine. The higher the friction coefficient of the engine, the greater the motion resistance and the higher the fuel consumption. Similarly, if the label of the engine oil is higher than that specified in the automobile maintenance manual (the higher the label, the higher the viscosity of the engine oil at the same temperature), the running resistance of the engine will also increase and the fuel consumption will also increase.

② Air filter and fuel filter

The function of the air filter is to filter the air dust and impurities entering the engine. If it is used for a long time without replacement, the intake resistance of the engine will increase, resulting in a decrease in power and power. If it is necessary to improve the power, it is necessary to inject more fuel, and the fuel consumption of the vehicle will increase significantly.

The function of the fuel filter is to filter the solid impurities in the fuel and prevent the fuel system from being blocked. If it is used for a long time without replacement, impurities in the fuel will easily block the fuel nozzle, resulting in increased fuel consumption and unstable idle speed.

③ Spark plug

Spark plugs mainly produce electric sparks, which are used to ignite the combustible mixture in the cylinder. The quality of spark plug directly affects the combustion efficiency of engine. When the spark plug is used for a long time, a layer of colloidal oxide will be produced around it, which is also commonly known as carbon deposition. When the carbon deposit reaches a certain level, it will affect the ignition time and intensity. So the fuel can't be fully burned, and the power of the car will drop. If it is necessary to increase power, the control unit will increase fuel injection, which will form a vicious circle and fuel consumption will rise rapidly.

4 storage of electricity?

The life of the battery has a certain period, generally about two years. When the battery reaches its service life, its performance will be greatly reduced, resulting in unstable nozzle pressure and abnormal ignition of spark plug, which indirectly increases fuel consumption.

⑤ Brake system

The basic principle of the braking system is that the driver presses the brake pedal and applies pressure to the brake oil in the brake master cylinder. The liquid transmits the pressure to the piston of each wheel brake caliper through the pipeline, and the piston drives the brake caliper to clamp the brake disc, thus generating huge friction to slow down the vehicle. The brake system that has been in disrepair for a long time often leads to poor return of the caliper after clamping the brake disc, which leads to friction between some brake pads and the brake disc, which increases the forward resistance of the car and leads to increased fuel consumption.

⑥ Tire pressure

If the tire pressure is too low, the contact surface between the tire and the ground will increase. The larger the contact surface, the greater the friction resistance and the higher the fuel consumption. It's like riding a bicycle with insufficient tire pressure is more laborious than riding a bicycle with normal tire pressure.

Human factors?

① Heavy objects are often placed in the suitcase.

Many of our friends like to put a box of water or tools in the trunk of a car, which actually indirectly increases the weight of the car. As mentioned in the last issue, when the vehicle weight increases, the friction resistance with the ground increases, and the vehicle needs more traction, so the fuel consumption will increase relatively.

② Planning of driving route

It is very important to plan the driving route reasonably in advance to avoid traffic jams and traffic lights. Sometimes short routes consume more fuel than long routes.

③ Driving habits

Different driving habits are also part of the impact on fuel consumption. For example, heavy throttle, sudden braking, high-speed driving with windows open, long-term idling, stop-and-go, frequent air conditioning, low-speed driving, and insufficient predictive ability. Bad driving habits are often the most influential factor on fuel consumption.

Of course, some minor faults of the car will also affect fuel consumption, so I won't introduce them here. According to statistics, fuel costs account for the highest proportion of all car-related consumption of domestic car owners. The reason why the topic of fuel consumption has been kept hot is because fuel cost is not a small expense. It's not that I can't afford it, but it hurts like a blunt knife.

Friends who want to know more about car use may wish to pay attention to me. I will share a small dry car with you every day to keep you away from the trouble of using the car.

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This article comes from car home, the author of the car manufacturer, and does not represent car home's position.