How much gas should I fill my car?
In general, the oil filling should be between the upper and lower limits of the dipstick and not below the middle scale, because the high temperature of the engine will dilute the oil when driving at high speed, and if the amount of oil is small, the lubrication effect and cooling effect will be reduced. Practice has proved that it is ideal to refuel below the upper limit of 1/4. In addition, we must master many factors such as engine oil model, season, climate, engine displacement and technical performance. Therefore, it is best to choose a professional automobile maintenance center, carefully judge the automobile, select the applicable engine oil, carefully operate the maintenance process, and put an end to hidden dangers. Of course, the general car maintenance center will not refuel more (cost control), but if you bring your own oil, the car maintenance center will not care too much, so you should be careful not to refuel more.
What are the hazards of increasing or decreasing automobile oil?
As we all know, engine oil is very important for the movement of the engine, because it shoulders the two functions of lubrication and heat dissipation. Therefore, at any time, there is no shortage of oil for the engine. However, excessive addition (exceeding the upper limit of the scale) has very bad consequences. Too much engine oil will increase the rotation resistance of the crankshaft and reduce the output power of the engine, and those excessive engine oil will rush into the combustion chamber to participate in combustion, which will cause the vehicle to burn engine oil, emit blue smoke and even increase fuel consumption. Residue (mainly composed of carbon and very hard) after engine oil combustion will accumulate on the combustion chamber wall, reducing the combustion chamber space, thus reducing the compression ratio of the engine. At the same time, it will also accelerate the wear of cylinders and pistons, thus reducing the service life of vehicles. If the oil is too little, some parts of the engine, such as cam tappets and valves, will not get enough lubrication, which will cause parts to wear, and even lead to cylinder pulling and bushing burning accidents.
Therefore, it is best to refuel according to the specified amount, and check the amount of oil regularly to ensure that there is neither too much nor too little oil. Usually every car has a dipstick, so that the owner can check the fuel quantity. A simple long iron bar can't be correctly judged by just pulling it out and looking at the amount of oil.
Knowing the proper amount of automobile oil, let's take a look at the method of automobile oil inspection.
The correct inspection method is to pay attention to the inspection conditions, not when the car starts. During inspection, stop the car, tighten the handbrake, start the engine, and turn off the engine for a few minutes when the normal working temperature is reached, so that the oil can flow back to the oil pan. At this time, take out the dipstick again, dry it, take it out again after insertion, and check the oil level. If it is between the "MIN" and "MAX" marks at the lower end of the dipstick, it means that the oil quantity is normal. If it is lower than the "minimum value (min)", you need to add an appropriate amount of engine oil. Sometimes the owner who is used to checking the dipstick from time to time can be said to be a very good car user. Many people have no such habit at all. As long as the oil lamp doesn't work or it's not time to change the oil, they won't consider the oil problem. In fact, it is necessary to check the dipstick once a week, which can find hidden dangers in time and is not troublesome.
Upward attitude: those things about engine oil inventory
1. Automobile oil has four main functions: cooling the engine temperature, lubricating engine parts, cleaning engine impurities, and sealing the engine to keep the combustion chamber sealed.
2. Automobile engine oil can be divided into mineral engine oil and synthetic engine oil. Generally speaking, synthetic engine oil is used for family cars, so you should pay attention to it when buying.
3. What does the code on the engine oil mean? We will see that the engine oil will say 5W40 or 10W40. What does this mean? This is too complicated to say. Simply put, the smaller the number before the letter, the better the cold resistance, and the less likely it is to freeze. The larger the number, the higher the year, which is more suitable for high-speed engine operation.
4. Check the dipstick. If you don't know much about the car, you suddenly feel that the power of the car drops and the fuel consumption increases obviously. Some dashboards in the car will show whether the oil should be changed. It is an icon of a small oil pot. You can look at the dipstick. The oil should be in the correct position, and the display of oil between the highest and lowest dipstick is appropriate.
5. The oil change time, first of all, is the oil change time, which will be written in the basic maintenance manual, but some people accidentally lost the maintenance manual, usually every 5,000 kilometers.
6. Check the quality of the oil in the car. Dip a tissue into the oil in the dipstick. If it is black or has impurities, it needs to be replaced.