What is 0W-20 engine oil?
1 Answers
0W-20, the "W" stands for "winter", meaning it is for winter use. The number before the "W" (5) represents the viscosity at low temperatures. The smaller the number, the better the fluidity at low temperatures and the stronger the cold resistance. "20" refers to the viscosity at 100°C. The larger the number, the higher the viscosity and the stronger the high-temperature resistance. Below is the relevant introduction: 1. Notes on selecting oil viscosity: When choosing oil viscosity, you should select the appropriate viscosity based on your driving habits, the technical characteristics of the engine, and the driving conditions. When the engine is running, the oil forms a film on the surface of each component inside the engine, which prevents direct contact and friction between the components. 2. The importance of viscosity: If the oil viscosity is insufficient, the oil cannot form a stable film, which will increase engine wear. However, if the oil viscosity is too high, it will increase the engine's operating resistance, leading to insufficient engine power. 3. Engine oil needs to be replaced regularly: The performance of engine oil will degrade over time. If the oil is not changed for a long time, it will accelerate engine wear. Each time the oil is changed, the oil filter should also be replaced. The oil filter is used to filter the oil. Without an oil filter, the oil will become very dirty after some use, which will also affect the lubrication of the oil.
