, we analyzed the impact of automotive hardware technology and technical level on fuel consumption. In this issue, we will analyze the impact of automotive vulnerable parts and human factors on fuel consumption.
① oil filter
oil filter is a consumable that needs to be checked and replaced every time maintenance. If the oil filter is not replaced in time, it will have a greater impact on the lubrication operation of the engine. The friction coefficient of the engine becomes higher, the movement resistance becomes larger, and the fuel consumption becomes higher. In the same way, if the replacement oil grade is higher than that specified in the car maintenance manual, (the higher the grade, the higher the viscosity of the oil at the same temperature) the engine running resistance will increase, and the fuel consumption will also increase.
②Air filter and fuel filter The function of
air filter is to filter the air dust and impurities entering the engine. If it is used for a long time without being replaced, the air intake resistance of the engine becomes larger, resulting in a decrease in power and power. If you need to increase the power, you will 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 clogging. If the fuel is not replaced for a long time, the impurities in the fuel will easily block the fuel injection nozzle, resulting in increased fuel consumption and unstable idling.
③Spark plugs
spark plugs mainly produce electric sparks, which are used to ignite the combustible gas mixture in the cylinder. The quality of the spark plug directly affects the combustion efficiency of the engine. A layer of colloidal oxide will be produced around spark plugs that have been used for a long time, which is what we commonly call carbon deposits. When the carbon deposit reaches a certain level, it will affect the ignition time and ignition intensity. As a result, the fuel cannot be fully burned, and the power of the car will drop. If the power needs to be increased, the control unit will increase the fuel injection volume, which results in a vicious circle and fuel consumption rises quickly.
④ Battery
The battery life has a certain period, generally about two years. When the battery reaches the end of its service life, its performance will be greatly reduced, resulting in unstable fuel injector pressure and abnormal spark plug ignition, which indirectly increases fuel consumption.
⑤Brake system The basic principle of the brake system is that the driver steps on the brake pedal to apply pressure to the brake fluid in the brake master cylinder. The fluid transmits the pressure through the pipeline to the piston of each wheel brake caliper, and the piston drives the brake caliper to clamp The brake discs thus generate huge friction to slow the vehicle. However, a brake system that has been in disrepair for a long time will often cause the calipers to not be able to return well after clamping the brake disc, causing some brake pads and the brake disc to be in a state of friction, increasing the car's forward resistance, resulting in 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 frictional resistance when the car is running, 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 influence
①The trunk often puts heavy objects
Many of our friends like to put a box of water or tools in the trunk of the car. This actually increases the weight of the car indirectly. It was mentioned in the previous issue that the weight of the car has increased. The greater the frictional resistance between the vehicle and the ground, the greater the traction of the car, and the higher fuel consumption.
②Planning of the driving route
Plan the driving route reasonably in advance to avoid congestion and traffic lights, which has a critical impact on fuel consumption. Sometimes the near route is more fuel-efficient than the far route.
③Driving habits
The difference in driving habits is also part of the impact on fuel consumption. For example, heavy accelerator, sudden braking, high-speed driving with windows open, long idling, stop-and-go, frequent air conditioning, low-speed driving, insufficient predictive ability, etc., bad driving habits are often most of the factors that affect fuel consumption.
Of course, some minor faults in the car will also affect fuel consumption, so I won't introduce too much here. According to statistics, among all domestic car owners' consumption related to automobiles, fuel costs account for the highest proportion. The reason why the topic of fuel consumption has remained hot is because fuel costs are a big expense. It's not that I can't afford it, but it's persistently uncomfortable like cutting meat with a dull knife.
Friends who want to know more about car use, may as well pay attention to me, I will share a piece of car dry goods with you every day, so that you can avoid car use.
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This article comes from the author of Autohome and does not represent the viewpoint of Autohome.
