Many people feel that the winter in the north is difficult. It is not only cold, but also very dry. It is typically wind-dry and dry. Not only do people feel cold, but this is especially true for our cars. For example, the various oils on our vehicles are actually more "sensitive" to seasonal changes than we are. If we don't pay enough attention, they may become cold. It is possible that your winter driving experience will be greatly compromised, or even worse, such as being unable to drive or throwing you on the road. So, in order to avoid this kind of thing from happening, in the following content, you'd better come with me to figure it out.
● Winter is here, and what is the most fearful thing about your car is "freezing".
I have already talked to you at the beginning. In the cold winter, not only people need to change their clothes to adapt to the cold winter, but cars also need to change their clothes. Today I want to talk to you about the three most important aspects: engine oil, Antifreeze, glass water.
● Engine oil
Some friends may have questions, my car has been using the engine oil recommended by the 4S store all year round, and nothing has happened? Why do I have to talk about this alone? Of course it is
Many people feel that the winter in the north is difficult. It is not only cold, but also very dry. It is typically wind-dry and dry. Not only do people feel cold, but this is especially true for our cars. For example, the various oils on our vehicles are actually more "sensitive" to seasonal changes than we are. If we don't pay enough attention, they may become cold. It is possible that your winter driving experience will be greatly compromised, or even worse, such as being unable to drive or throwing you on the road. So, in order to avoid this kind of thing from happening, in the following content, you'd better come with me to figure it out.
● Winter is here, and what is the most fearful thing about your car is "freezing".
I have already talked to you at the beginning. In the cold winter, not only people need to change their clothes to adapt to the cold winter, but cars also need to change their clothes. Today I want to talk to you about the three most important aspects: engine oil, Antifreeze, glass water.
● Engine oil
Some friends may have questions, my car has been using the engine oil recommended by the 4S store all year round, and nothing has happened? Why do I have to talk about this alone? Of course it is correct to use the engine oil recommended by the 4S store all year round, but do you know? It is different. Depending on the engine oil specification, its performance in winter is also different. In the cold winter, especially in northern areas, choosing an engine oil that is more suitable for winter can not only help you start the vehicle more smoothly, but also reduce damage caused by the poor cold start performance of the engine oil.
◆ Click here for engine oil characteristics
Before talking about which engine oil is suitable for winter, let's first take a look at the meaning of the SAE label in engine oil products. SAE is the abbreviation of the English "Society of Motor Vehicle Engineers". The label after SAE indicates the viscosity value of the engine oil, such as: SAE5W-40, Among them, "W" represents WINTER, and the number before "W" represents the flow viscosity at low temperature. The smaller the value, the better the low-temperature fluidity of the engine oil, and the better the protection ability of the engine when the vehicle is cold started; " The number after "W" is the viscosity of the engine oil at 100°C. The higher the number, the higher the viscosity.
● How to choose the “winter engine oil” that suits you.
According to traditional knowledge, when winter comes, we can choose engine oil with lower low-temperature viscosity, such as 5W or 0W engine oil, for most vehicles that are not too old (within 3-5 years) and are in good condition. Generally speaking, when winter comes, it is okay to choose engine oil with lower low-temperature viscosity. For example, the original manufacturer of your model recommends 5W or 10W engine oil. You can "raise" the low-temperature indicator by one level, which is the value in front of W.
The "upgrade" gear mentioned here refers to the number in front of W, such as 0W or 5W. It can make starting the vehicle smoother in the cold winter, and the engine oil will give the engine more power during the starting stage. Lubrication protection. As for the 100°C kinematic viscosity, that is, the number behind the oil label should not be changed easily. Different engine manufacturing processes have very different requirements for high-temperature lubrication performance. Changing the high-temperature lubrication performance at will may damage your engine, such as burning oil. Even the engine was scrapped.
● Please pay attention to a few models!
For most passenger cars, the above suggestions are relatively applicable, but for those minorities, we have to treat it separately. Although your car is also a 3.0L V6, so is its car, but due to the manufacturing process And due to differences in adjustment, for a small number of models, the choice of engine oil still needs to be cautious.
For example, for the previous generation 4.0 V8 BMW M3, the most suitable engine oil for it is 10W or 15W engine oil with high low-temperature starting viscosity. Although the viscosity is very high, the air tightness and cylinder pressure at this time are not suitable for it. It is even more important. In addition, the car is already very powerful. "Driving" 10W or 15W engine oil is not a problem at all. On the contrary, for those 0W and 5W engine oils I just mentioned, it must not be used indiscriminately, otherwise it will It will have extremely serious negative effects on the engine.
● Check out old cars here!
For old cars that are more than 10 years old and have mileage of more than hundreds of thousands or even hundreds of thousands of kilometers, I recommend that you use the oil recommended by the original manufacturer, although its low-temperature starting performance is not the best. But the advantage of this kind of engine oil is that it has better sealing performance, is easier to maintain oil pressure, and reduces oil consumption. Most of this kind of engine oil is mineral oil.
For most old cars, the air tightness and gaps between parts will become more or less worse and larger. Using low-temperature starting oil with very low viscosity, such as 0W, may cause oil burning, which will not satisfy the engine. The need for lubrication and protection is harmful rather than beneficial. Of course, if you feel that your car has been well maintained and is still in very good condition, and you want to try using 0W or 5W engine oil, that is another matter.
