When people buy a car, they are very entangled. Now there are so many car brands. Whether it is to look at the appearance or performance of the car, there are always several brands to choose from at a price. After you have selected the brand in the intricate car, you have to choose insurance, and finally you have to worry about car maintenance. Suddenly, it is hard to find a car to pay for the car, because not all things can be solved with money. You put The car is placed in the place of maintenance, you know how much you lost. Let me tell you how long the oil should be replaced, how to judge when to change the oil . Because the oil has a long life but no specific replacement time, so many people feel that it is very troublesome to change the oil, they will not check, they can only listen to the 4S shop. In fact, there is a very simple way to test the oil needs to be replaced. I believe everyone has heard of slow qualitative test strips, maybe they have not used them, but the price of such test strips is not high, and it is easy to find in the market. After you buy it, use a drop of oil on a slow qualitative test strip and observe the color change of the oil. It usually takes 24 hours. According to this change, it can be seen that the oil does not need to be replaced. After 24 hours you will see oil in the shape of paper are generally three types: 1. If it is a diffuse shape, it proves that the oil inside is contaminated. In this case, you can judge whether the decomposition of the diffusion and deposition rings is obvious. If it is obvious, you can still use some time, but you should pay attention to check to avoid deterioration. I still don't know. 2. If the shape of the deposit generally indicates that the pollution inside is very serious, and according to the color judgment, the darker the pollution is serious, and it needs to be replaced at this time. In fact, the most serious is the black sediment ring, which is hard to replace immediately. 3. If the oil is ring-shaped, it means that it is oxidized, and the color will gradually change from yellow to brown. The deeper the oxidation, the more serious the oxidation, but this kind of thing is the lightest one in that case. The oil can still be used for a long time and does not need to be replaced in the short term. How do you judge this? You can see the picture below. How long should the oil be replaced? How to judge when to change the oil will be finished for everyone. In fact, no one's money is blown by the wind, so people will be entangled when the car is replaced and the oil is replaced. And the price of good engine oil is indeed very high, but the replacement will affect the engine of the car, and it will cause greater losses, so many people will feel headaches in the time of oil replacement, after reading Xiaobian Does the article feel that the big problem has been solved? Tyre Repair Patch (Euro-Style) NINGBO BLUEOCEAN AUTO PARTS CO.,LTD , https://www.blueoceancarparts.com