When is the best time to change the oil of your car?

It is recommended that low-grade cars can be replaced in advance with a high-quality lubricant like the Uni-President Classic. Medium and high-end cars, especially engines designed with the latest technology, are manufactured with a high degree of precision and are very close to the requirements of use, and the vehicle is already manufactured with high-quality original oil, so there is no need to change the lubricating oil in advance.

Some cars clearly state not to change the lubricating oil in advance, the reason is that in order to make the performance of the engine more perfect, the manufacturer added additives conducive to the engine run-in to the lubricating oil when leaving the factory, and required to replace it after 5000 kilometers. Therefore, whether it is necessary to replace the lubricating oil in advance depends on the specific requirements of the manufacturer. Generally, it will be mentioned in the user manual, if there is no specific instructions, you can consult the special maintenance service station.

In general, the maintenance manual of each vehicle stipulates the mileage of oil change. At present, the oil change mileage of domestic gasoline engines is generally stipulated to be 4500 to 7500 kilometers, and the oil change mileage of diesel engines is generally 8000 to 12000 kilometers.

In fact, after a period of use, the oil will lose its own quality due to oil oxidation and pollution, and lose the original good protection performance of the engine oil. Because the various additives contained in the engine oil are constantly consumed. The engine oil is constantly mixed with the combustion gas in the cylinder and the formation of sludge, carbon deposits, moisture, acid oxides, etc., will make the performance of the engine oil continue to decline.

Therefore, if the oil is not changed on time, it will significantly reduce the anti-wear and anti-corrosion performance of the engine oil.

Of course, it is not very easy to grasp a reasonable oil change mileage, because even the same car has different oil change mileage in different environments, different road conditions, different working conditions, and different use stages. If your vehicle is in poor condition, then the oil change mileage should be shortened accordingly, because the oil will deteriorate faster under such conditions. Therefore, in order to better protect the engine, it is recommended not to excessively extend the oil change mileage.

Of course, if the use conditions and condition of the vehicle are relatively good, the oil change mileage can be appropriately extended.

Different quality lubricating oil, its replacement cycle is not the same, some good imported lubricating oil its chemical stability is very good, its replacement cycle can even reach 10,000-20,000 kilometers, but in the case of the domestic environment is not very good, usually do not exceed 10,000 kilometers.

When changing with high-quality engine oil, you will find that it will flow into a line after it is released, which is really like this in the end, on the contrary, the oil that flows out is like water, and the lubrication effect of such oil can be imagined.

If your car is new, it is recommended to use a higher quality oil, and if it is an old car, you need to be cautious.

The interval of oil change will vary depending on the quality of the oil. At present, the common engine oil on the market is ordinary (mineral) engine oil, semi-synthetic engine oil, and fully synthetic engine oil. In general, the replacement cycle of the three is as follows:

Ordinary (mineral) oil: 6 months or 5000 km; Semi-synthetic oil: 8 months or 7500 km; Fully synthetic oil: 12 months or 10,000 km.

How to determine how to change the engine oil.

1. The smell method is similar to the peculiar smell of food when it is rancid, and if the engine oil deteriorates, it will also have a strong strange smell. All you need to do is take out the dipstick and sniff it to tell if the oil has deteriorated.

2. The hand twist test method only needs to use the oil dipstick to drop a few drops of the oil on the thumb and fingertips, and rub the thumb and index finger back and forth. Normal motor oil is clean, lubricated to the touch, and non-grainy. If you feel that there is a sense of impurities and the stickiness is poor, it means that there are too many impurities in the oil, and the life has reached the end of the time and needs to be replaced.

3. Take out the oil dipstick by irradiation method, and observe the oil droplets on the dipstick under strong light. If there are impurities in the oil, you need to change the oil, and if there are no impurities in the oil droplets, you can continue to use it.

Fourth, the observation method uses the oil dipstick to draw a few drops of engine oil on the oil qualitative filter paper, and then leave it static for one night, waiting for the oil on it to completely diffuse. If the edge between the oil ring, sedimentation ring, and diffusion ring of the diffuser oil is harder, the more the oil performance will decay, and you can consider changing the oil at this time.

Engine oil, that is, engine lubricating oil, is known as the "blood" of the car, which can lubricate, clean, cool, seal, reduce wear, prevent rust and corrosion of the engine. The engine is the heart of the car, and there are many metal surfaces in the engine that rub against each other, and these parts move fast, the environment is poor, and the operating temperature can reach 400°C to 600°C. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life.

Engine oil, that is, engine lubricant English name: engine oil. The density is about to be able to lubricate and reduce friction, cool and cool down the engine, seal and leak proof, prevent rust and corrosion, and absorb shock and cushion.

The engine oil on the market can be divided into two types: mineral oil and synthetic oil due to its different base oils (vegetable oil is not counted due to the scarcity of production). Synthetic oil is divided into: fully synthetic and semi-synthetic.

Fully synthetic motor oil is of the highest grade.

Engine oil is made up of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil, and additives can make up for and improve the shortcomings of base oil performance, give some new properties, and are an important part of lubricating oil.

Lubricating oil base oils are mainly divided into two categories: mineral base oils and synthetic base oils. Mineral base oils are used in a wide range of applications in large quantities (about 95% or more), but some applications require the use of synthetic base stock blends.

The decay of engine oil has a certain period of time, and ordinary and semi-synthetic ones generally begin to oxidize after about 3 months of exposure to air, and their function is reduced. In other words, if you don't drive there for 3 months after changing the oil, you should also change the oil again. Fully synthesized in about half a year.

If you drive, the country generally begins to decay at 5,000 kilometers.

The total synthesis is generally around 8000 km.

Semi-synthetic 5000 km.

Fully synthetic 8000 km.

Hello! When was the last time you changed your oil?

Many people may be buying a car for the first time, so they cherish their car very much. Seeing that a friend bought a car and drove it for a month to change the oil, and even some friends earlier, so some novice car owners also began to be apprehensive, and a week later, they also followed the wind and followed the flow, and changed the oil for their cars, and there were still some small worries in their hearts, for fear that the oil change would be late, resulting in damage to the engine!

Actually, a lot of the time. The change of engine oil mainly depends on the mileage traveled, rather than the length of time. If you don't use your car very much, it may take half a year before you change the oil for the first time.

Of course, during the run-in period, it is better to drive more, and it is not good for the car to prevent it for a long time. But here's a common sense question, that is, when the color of your car's oil changes, what happens to you? Is the oil spoiled and can no longer be used?

There are many people who think that if the engine oil turns black, it is very dirty, and they need to change the engine oil. In fact, if the mileage is not reached, there is no need to replace it. In addition, if the engine oil is always too new, it will also cause the thermal conductivity to be too strong, and finally the temperature of the engine will continue to rise, making it difficult for your machine to run.

Black might just be a little dirty, don't worry about it.

If you have any questions in the selection of a car, it is recommended that you consult the car quality network, I hope I can help you.

It depends on the type of oil to be used in the vehicle.

Generally, there are 3 types of engine oils, fully synthetic, semi-synthetic, and mineral engine oils.

Generally, fully synthetic engine oil is changed every 10,000 km or 1 year.

Generally, semi-synthetic engine oil is changed every 7500 km or 7-8 months.

The general mineral oil is changed every 5000 km or 6 months.

Under normal circumstances, it is better to change the oil three or four months between this time and the last time, and if it is in kilometers, change it every 5000 kilometers.

Hello, the current number of people consulted may not reply in a timely manner, if it is a vehicle failure problem, it is recommended to use the computer to detect the specific cause of the failure, search for "car master" can consult car problems at any time, 24 hours ** answer.

The first warranty is 3000 kilometers, and the maintenance interval can be set according to the level of oil you use.

<> "When is the car oil changed?"

Changing the engine oil is a very important part of the car maintenance project, when should you change the car oil? There is no fixed period for changing the oil. The replacement time should be determined according to the type of oil used, the environment in which the vehicle is driving and the condition of the vehicle.

For engine oil, first of all, we must understand the brand of engine oil, Shell (Qiao) brand 5W-30 or 5W-40 are the two most common engine oils on the market, and they are also relatively economical, "W" is the first letter of the English word winter, which means winter, the smaller the number of W, the better the low temperature start and the fluidity of the oil. The number behind W represents the kinematic viscosity of the oil at 100, the larger the value, the higher the viscosity of the oil, there are many brands of engine oil, and the types and qualities are also different. There are several engines that leave the factory with the correct oil label.

It can be found in the owner's manual, the best is suitable for the engine, and mineral engine oil is suitable for models with relatively low emission requirements, such as mini cars, small cars and fuel-efficient vehicles worth tens of thousands of yuan. The engine power of these models is not strong, the drop in power due to the reduction of fuel efficiency is not strong, and of course, the impact on the driving experience is not very large, and even the change is not felt. Therefore, mineral oil can be used for these types of vehicles to achieve the most economical effect, and it is replaced every 5,000 kilometers.

The best part is that no matter what brand or type of oil, it has to be changed in about a year, regardless of whether the mileage meets the regulations, even if the fully synthetic oil only takes 2,000 miles.

But the car has been standing for more than a year, and it also needs to be replaced at this time, the car often drives on busy roads, even if the vehicle does not move forward, the engine is always in an idle state, and the engine is running when idling and working with the oil at the same time, at this time, although the odometer number has not changed, the engine is still "turning", and the oil is also "refueling". In this way, even if the odometer does not reach the oil change interval, the oil has reached the performance limit, if the oil is not changed in time, it will reduce the lubrication and protection, increase the wear between the parts, and affect the service life of the car. Therefore, it is necessary to change the engine oil in time.

Don't wait until the vehicle is damaged before overtaking, changing the oil not only depends on the mileage, but also on the time, the oil has an expiration date, if the driver like this is less, you can change the oil after the expiration date, and the machine filter also has a service life. The oil can still be used, but the filter has lost its filtering effect. The cleaning effect is seriously affected, maintain it in advance, if you don't drive often, no matter how long the mileage interval between oil changes, the car will have a very little mileage, and you should also change the oil at least every six months, because the oil will deteriorate and deteriorate over time.

Another point to note is that different models of oil composition and density are different, or may not be suitable for the car at all, but also need to know more about car maintenance, in the maintenance process, it is inevitable to encounter unscrupulous traders, if you don't know anything, you will definitely be deceived.

<> "When is the most appropriate time to change the oil?"

According to observation, the oil change cycle of China's car is much shorter than that of foreign cars, often 5,000 kilometers for a change, in fact, in foreign countries, the oil change cycle of the car is less than 10,000 kilometers, everyone's behavior is called irrational rubber consumption, in foreign cars oil change requirements in 15,000 kilometers to change, the same car to China will become 5,000 kilometers, so why is this?

Engine oil is also called lubricating oil, if we compare the engine of the car to the heart of the car, then the engine oil is like the blood of the car, the oil affects the performance and life of the engine, the main function of the engine oil is lubrication, cleaning, cooling, rust prevention and sealing, now the engine oil is more divided into mineral oil, semi-synthetic oil, fully synthetic oil, when changing the oil, you need to pay attention, as long as there is no "synthetic" word, it is all "mineral oil".

Just like SL oil, the second high-grade oil in the country, is the poor road conditions in our country, no matter how bad the oil is, 10,000 to 10,000 kilometers of oil can meet the needs of car maintenance, and the smooth effect has a curve, test, SL grade oil 7500 kilometers is the best moment, but at this time many people have now turned it into waste oil.

When is the best time to change your oil? Teach you a simple and scientific method, use the oil test strip test, take a look at the current oil condition of the car, and specifically judge when the oil needs to be changed.

Why do some manufacturers recommend changing the engine oil once every 5000 kilometers? In fact, the reason is that China's road conditions, fuel quality and oil quality are relatively poor, so the manufacturer recommends a high frequency of oil changes, so that the car can maintain good fuel consumption and performance.

The distance of 5000 kilometers is just a lot of oil lubricating fluid just entered the feeling, if the oil is replaced at this time, it will not only increase the economic burden of the owner, but also waste energy, so the manufacturer recommends that 5000 kilometers change the oil, just to reduce their own risk factor, so as to obtain greater benefits.

In fact, how often you change the engine oil depends on the quality of the engine oil you choose, under normal circumstances, mineral oil is changed once every 5000 kilometers, semi-synthetic engine oil is changed once every 8000 kilometers, and fully synthetic engine oil is changed once every 10000 kilometers.