How to determine the correct oil change cycle?
Generally speaking, the oil change period of internal combustion engine oil for vehicles is 5000km. Many car owners friends take this as a fixed understanding. In fact, each vehicle due to the engine condition, the use of internal combustion engine oil and the use of different environment, its reasonable oil change cycle should also have a certain difference, can not be generalized.
Generally speaking, the oil change period of internal combustion engine oil for vehicles is 5000km. Many car owners friends take this as a fixed understanding. In fact, each vehicle due to the engine condition, the use of internal combustion engine oil and the use of different environment, its reasonable oil change cycle should also have a certain difference, can not be generalized.
(1) Engine condition
The interior of the new car engine is clean and there are few impurities such as carbon deposits, so the oil change period can be appropriately extended. But it should not exceed 7500km. No matter how good the internal combustion engine oil is used for a certain mileage, its chemical properties will also change, especially the additive components will gradually fail, which will not protect the engine. Old engines, especially engines that lack maintenance, have more carbon deposits inside. After the new engine oil is added, it is easy to be contaminated, causing color and qualitative changes. Therefore, the oil change period should be appropriately shortened. Of course, if there are conditions, it is best to thoroughly clean the inside of the engine.
(2) Used oil
There are two standards for the identification of internal combustion engine oil: quality grade (API) and viscosity (SAE). The quality level is generally from SC, SD to SJ level, the higher the level, the better the quality. Modern cars, especially cars, are mostly high-speed engines, which have higher requirements for oil products. Generally speaking, internal combustion engine oil above SF grade has good oxidation resistance, abrasion resistance, clean dispersion and viscosity stability under high temperature and high shear, which can provide reliable protection for the engine, and its quality stability remains unchanged for a long time. Under normal circumstances, it can completely meet the 5000km oil change cycle. However, some car owners, mostly taxi owners, use SD or even SC grade internal combustion engine oil in order to save money, so it is not appropriate to follow the 5000km oil change requirement. Because the low-level internal combustion engine oil has poor stability under harsh working conditions, fast deterioration, and easy to generate carbon deposits. From the perspective of caring for vehicles, if this type of internal combustion engine oil is used, the oil change period should be shortened to 3000km or even shorter. It is best to use the internal combustion engine oil recommend in the car manual, otherwise it may not save money due to the shortening of the oil change cycle.
(3) the impact of the use of the environment
The environment also has a certain impact on internal combustion engine oil. High temperature, extremely cold and dusty environments are easy to accelerate the deterioration of engine oil. The owner should not only choose the appropriate level and viscosity of internal combustion engine oil for the environment, but also shorten the oil change period appropriately. The specific requirements depend on the situation. Generally, it is appropriate to shorten the period by 1/5-1/3.
Many car owners have a vague understanding of the use of internal combustion engine oil, thinking that as long as it is engine oil, it can be changed at 5000km. However, the type of internal combustion engine oil is not properly selected, the oil change cycle is not well grasped, and long-term use will have a great impact on the vehicle. Some of the same models are still in good condition with a driving 2. of 300,000 kilometers. In addition to driving methods, the rational use of internal combustion engine oil is also very important. As long as you can pay attention to summing up experience, carefully comparing, scientifically selecting engine oil and mastering the oil change cycle, your car will be youthful and permanent.
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