What is the difference between 10w and 5w engine oil?

1 Answers
DiLyla
07/30/25 5:51am
The difference between 10w and 5w engine oil lies in their low-temperature viscosity, maximum applicable temperature, and wear reduction effects. Here are the specific details: 1. Firstly, 10w engine oil has poorer low-temperature viscosity and fluidity compared to 5w engine oil, and it is suitable for higher minimum temperatures. 2. Secondly, 10w engine oil can withstand higher maximum temperatures than 5w engine oil, and it has a broader applicable temperature range. 3. The wear reduction effect of 10w engine oil on parts is better than that of 5w engine oil. The 'w' stands for 'winter,' and the smaller the number before 'w,' the lower the applicable temperature. When choosing engine oil for your car, it is essential to select the appropriate grade based on the temperature conditions of your location. In northern regions where temperatures are lower, a smaller number before 'w' is definitely better.
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