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Engine oil (engine maintenance: how to choose oil and Walletinvestor digi plusreplace the cycle correctly?) Engine oil is the key to engine maintenance. It can not only lubricate the engine and reduce wear, but also reduce friction and loss, and maintain the running performance of the engine.However, it is crucial to choose the appropriate engine oil and follow the correct replacement cycle. In this article, we will introduce how to choose the right engine oil and the time to change the oil. How to choose the right engine oil? When choosing engine oil, the following guidelines should be followed. 1. To understand the specifications of the car, first of all, you need to determine the type of oil and viscosity level recommended by the manufacturer of the car. This information can be found in your car manual, and you can find the recommended oil type and viscosity level in the manual. If you don't know that your car model or manual is lost, you can look up the information on the Internet. Two. Learn about a variety of oil brands and understand the oil brands you need. Of course, different brands of oil are similar, but there are also differences. Product configuration, service life, price and other factors mayIt varies from brand to brand, so knowing the information of multiple brands will help determine the most suitable oil for your engine. 3. Observe the level of oil. When buying oil, you need to pay attention to the level used, such as the level of API SJ or SL. This refers to the rules formulated by the Petroleum Association, which stipulate the required oil quality. Commonly used grades include SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM and SN. It is recommended to choose the highest grade engine oil. The higher the grade, the higher the quality of the oil. Four. To determine the capacity of the oil, you need to know the required amount of oil. In some cars, you have to look for indicators in the operating manual or on the engine cover. After determining the amount of oil, you can buy the necessary quantity. When to change the engine oil? Now that you know how to choose the appropriate engine oil, let's see when to change the engine oil?1. Check the engine oil level. First, if you find that the engine oil has turned yellow or black and the quality has deteriorated (ungloss), it needs to be replaced. In addition, it needs to be replaced when foam, silt and other substances are found, or water is found. Two. Understand that before the replacement cycle is ten years, the concept of car maintenance is fixed time and mileage. For example, it needs to be replaced every 3 months or every 3,000 miles. However, today's cars are more durable than before and use more advanced lubrication technology, so the replacement cycle has changed. Most Hyundai car manufacturers recommend that the oil should be changed according to the recommendation of each brand. This can be found in the operation manual or inside the car's suggestions. 3. The important thing about self-testing is that you can change the cycle through self-testing. It is recommended to check the oil quality at certain intervals, for example, every 1,000 miles or every 3 months.In addition, it is recommended to replace the oil filter when changing the oil to protect the impurities in the engine filter and pipeline. Conclusion The use of the correct engine oil and replacement cycle can ensure the long-term use of the car, extend the life of the engine, and enhance the overall operating performance. Use this guide to choose the most suitable oil for your car and guide you through the cycle of changing engine oil.

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