Motor oil, also known as engine lubricating oil, can lubricate and reduce friction, assist in cooling, seal and prevent leakage, prevent rust and corrosion, and provide shock absorption and buffering for the engine. Known as the "blood" of cars. As the engine working time increases, the engine oil becomes contaminated due to factors such as high-temperature oxidation, wear and tear of mechanical parts, and fuel vapor corrosion. And there will be a certain amount of consumption. So it must be replaced every 5000 kilometers.
2. Clean the throttle valve
The throttle valve is just like people's throat. It is connected to the air filter and the engine cylinder. It is used to control the flow of gas into the engine cylinder. Traffic, its status is very critical. If there is too much carbon deposit on the throttle, it will directly lead to less air intake, unstable idling, and engine vibration. Because the ratio of gasoline and air is incorrect, it will lead to incomplete combustion and aggravate the production of carbon deposits in other parts. Therefore, the throttle valve must be cleaned every 15,000 kilometers.
3. Inlet duct
The inlet and passage of air required by the air jet engine. The intake duct not only supplies a certain flow of air to the engine, but also the intake flow field must ensure the normal operation of the compressor and combustion chamber. The reason for carbon deposits in the intake pipe is also very simple. When the engine is turned off, the intake valves of some cylinders cannot be completely closed, and some unburned fuel continues to evaporate and oxidize, which will produce some soft carbon deposits in the intake pipe, especially behind the throttle. black carbon deposits. On the one hand, these carbon deposits will roughen the wall of the intake pipe, and the intake air will generate vortices in these rough places, affecting the air intake effect and the quality of the mixture. So it needs to be cleaned every 20,000 kilometers.
4. Fuel injector
The fuel injector is an important component of fuel. The fuel is sprayed out at high speed through the annular gap between the needle on the head of the needle valve and the nozzle hole. , forming a mist, which is conducive to complete combustion. If the fuel injector has carbon deposits, it may cause uneven injection, which will affect the atomization effect and cause fuel consumption. Therefore, you will feel that the fuel consumption will increase. There will also be a lack of motivation. Therefore, it is recommended to drive every 30,000 kilometers. Just go and clean the fuel injector.
5. Spark Plug
The function of the spark plug is to ignite. When the cylinder runs to top dead center, the gasoline can be burned to generate energy through the ignition of the spark plug. Therefore, the stronger the ignition ability of the spark plug, the better. Many experienced drivers do not change the spark plugs for a long time, even when the mileage is reached, thinking that they can be used as long as they are not broken. In fact, this idea is wrong. Even if the spark plugs are not broken, the ignition capacity will decrease, which will affect the power and fuel consumption. However, it will affect the power and fuel consumption every day. It dropped a little, and the change was so slow that I didn't even notice it. It is recommended to replace it every 40,000 kilometers.