How to Choose the Right Engine Oil Viscosity Grade?
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Choosing the right engine oil viscosity grade: Temperature and operating conditions are two key criteria for selecting engine oil. In regions with low winter temperatures, opt for a grade with a smaller number before the "W." For those who enjoy driving fast or have older vehicles, choose a grade with a higher viscosity coefficient after the "W," preferably from higher-end brands. When selecting engine oil, focus on two main aspects: the oil's performance level and its viscosity. Additional Information: 1. The performance level of engine oil can be found on the outer packaging of the oil container, with different levels suited for different engines. Generally, engines with higher RPMs or vehicles with higher cylinder pressures require higher-quality oil. Refer to the vehicle's manual; if the same performance level is unavailable, choose one grade higher than recommended, never lower. 2. For viscosity selection, consider the vehicle's usage and engine condition. In cold northern winters, choose oil with strong low-temperature fluidity. For older engines with poor cylinder wall sealing, thicker oil is recommended, as overly thin oil may lead to oil consumption issues. In southern regions with stable temperatures, 10W-20 oil is sufficient, and there's no need to opt for expensive options.
