When choosing a motor oil, we need to know the viscosity grade of the oil. Excessive viscosity will increaseCarsStarting resistance reduces the cooling effect, while too low viscosity leads to combustion losses of combustion chamber air and oil. Therefore, we need to choose the appropriate viscosity grade according to the vehicle's user manual or instruction.
The viscosity of motor oil refers to the fluidity of motor oil at different temperatures. Common oil viscosity grades include 5ww-40 and so on. The number in front of it"w"RepresentativesCold startTemperature,"w"The following numbers represent the viscosity at operating temperature. For example, 5w-30 oil inCold startIt has lower viscosity and better lubricating properties, making it suitable for use in cold climatesThe 10w-40 oil is suitable for use in higher temperature environments.
When choosing an engine oil, we should pay attention to the quality of the oil. Don't be superstitious about the so-called "high-tech" words in some propaganda, we should pay attention to the certification of products. The American Petroleum Institute API is an authoritative organization that evaluates the grades of motor oils. For example, APISP certification is the highest level of certification among synthetic motor oils, with excellent lubrication and friction reduction, cooling, sealing and leakage prevention, rust and corrosion prevention, shock absorption and cushioning. Therefore, we can know the quality level of the engine oil by whether the product is API certified or not.
In addition to API certification, there are other certification standards that can be referenced. For example, the European standard ACEA also evaluates the quality of motor oils. At the same time, some motor oil brands will also be certified by some industry organizations, such as:Carsmanufacturer's approval, etc. These certifications are proof of the quality of the motor oil, and we pay attention to the certification mark on the product packaging when purchasing.
Even if there is good quality engine oil, if you buy counterfeit and shoddy products, it will have a bad impact on the vehicle. When buying engine oil, we must choose a reliable purchase channel. Generally speaking, 4S shops or large chain repair shops are more reliable channels, and they are not prone to fakes. If you buy through online shopping, it is recommended to choose the official brand *** to ensure the authenticity of the product.
There are also some details to pay attention to when choosing a purchase channel. For example, some small repair shops have more channels to buy goods, and they may not know the authenticity of the goods they buy, resulting in the sale of motor oil may be counterfeit and shoddy products. When shopping online, it is best to buy at the official brand ***, which can avoid buying fakes and enjoy the official after-sales service of the brand.
Oil filterIt's the engineLubrication systemIt can effectively remove impurities and particles in the engine oil and protect the normal operation of the engine. Therefore, it is advisable to change it regularly depending on the specific use and type of oilOil filterto ensure the quality of the oil and the normal operation of the engine.
Oil filterThe replacement cycle will vary depending on the use of the vehicle. It is generally recommended to replace it as recommended in the vehicle's instruction manual or instruction manual. For vehicles that are heavily used or driven long distances, the replacement cycle may be relatively short. in replacementOil filterWe also pay attention to choosing the right model and brand to ensure its quality and compatibility.
Oil selection is an important part of maintenance, and we need to choose the right oil according to the use and requirements of the vehicle. When choosing, it is important to know the viscosity grade of the oil to avoid problems caused by too high or too low viscosity. At the same time, we should look for the quality certification of the engine oil, such as APISP certification, to understand the quality and performance of the engine oil. When purchasing, it is necessary to choose reliable purchase channels to avoid buying counterfeit and shoddy products. Also, replace it regularlyOil filterIt is also an important part of ensuring the quality of engine oil and the normal operation of the engine. Through the above points, I believe that you can be more clear when choosing engine oil.