Car oil is the blood that sustains the life of the engine. It is the component that can cool and lubricate the engine. Nowadays, more and more owners have realized the importance of oil, but little is known about the correct use of oil.
1. When to change the oil
People often say: The car should change oil regularly. But in the end, how often does it change? Basically, every car's manual will be clearly written. The past standard was every 5,000 kilometers, but in recent years, automakers have continued to develop research and hope that the engine's construction can be improved and the time needed for regular maintenance and replacement of oil can be extended. Therefore, many new cars in the general driving situation, if you use synthetic oil, you can basically change the oil every 10,000 kilometers, and some can even drag 20,000 kilometers. Auto maintenance professionals believe that "general driving" refers to the fact that they often travel on highways and rarely stop and walk. However, if you are driving in a city, you have traffic lights everywhere, and traffic jams, and most of the trips are no more than a dozen kilometers. This kind of driving method is "destructive driving."
In the "depleting driving" situation, the engine wear is relatively large, and the requirements for oil are also relatively high. Therefore, it is recommended to shorten the interval between oil changes to effectively protect the engine.
Tip: At ordinary times, it is difficult for us to determine whether the oil is changed by the naked eye or touch, but after long-term use, the engine oil will accumulate a lot of impurities. If the new oil is not replaced in time, these impurities will wear out the engine for a long time and shorten the car. Life expectancy.
2, how to choose how to choose oil
Choosing good oil can make the car more durable and more motivated. Good engine oils, especially fully synthetic ones, can save on gasoline costs in addition to protecting the engine and reducing the number of oil changes. Therefore, it is twice as expensive as regular oil and is the best choice for many car owners.
Optional oil note four elements
Under normal circumstances, the following four elements must be taken into consideration when selecting motor oil:
a. The choice of engine oil should be selected according to the requirements of the engine. It is not necessary to use too high-grade engine oil on lower-required engines, nor to use lower-grade engine oil on higher-demand engines.
b. Multi-stage oils should be selected as much as possible. Multi-stage oils have good protection effects on the engine due to savings, long life, and high efficiency. Based on the characteristics of multi-grade oils, premature blackening may occur during use, and the oil pressure is smaller than ordinary oil.
c. Some domestically-made brand-name engine oils are of fairly good quality, and the prices are lower than those of similar imported products, and they can be used with confidence. There is no need to blindly pursue "youyang oil."
d. If the engine is in good condition and the seasonal temperature is low, use less viscous engine oil as far as possible so that the oil path is open. For example, in high temperature season or severe engine wear conditions, the use of high viscosity oil is conducive to the formation of oil film and reduce engine wear.
Tip: There are hundreds of oil brands on the market, and the oil with a better grade will be more expensive, but the protection of engine parts will be better.
3, the amount of oil should be slightly lower than the scale on the oil dipstick
As we all know, oil is very important for the engine's movement, because it shoulders two major functions of lubrication and heat dissipation. Therefore, at any time, engine oil must never be lacking. However, the excessive addition (exceeding the upper limit of the scale) has a very bad result. Too much oil will increase the crankshaft's resistance to rotation and reduce the engine's output power, and those excessive oil will enter the combustion chamber to participate in the combustion, causing the vehicle to burn oil, emit blue smoke, and even increase fuel consumption. Residues of oil after combustion (which are mainly carbon, very hard) will accumulate on the walls of the combustion chamber, reducing the combustion chamber space, thereby reducing the compression ratio of the engine. At the same time, it will also accelerate the wear of the cylinder and the piston and thus reduce the vehicle's Service life.
When adding lubricating oil, it must be kept slightly lower than the scale on the oil dipstick. In addition to grasping the oil model, season, climate, engine displacement, technical performance and many other factors. Therefore, it is best to choose a professional car care center, after careful judgment of the car, select the appropriate oil, and carefully operate in the maintenance process to prevent hidden troubles. Of course, the general car care center will not increase the maintenance of oil (cost control), but if it is the oil you bring yourself, the car care center will not be too concerned about, then you have to pay attention to not add more oil.
Tip: Adding more oil is an erroneous operation. If more oil is found, it is best to ask the car care center to let it go.
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