What is the difference between 10w50 and 10w40?

1 Answers
SanAyla
07/24/25 11:08pm
Here are the specific differences between 10w40 and 10w50: Different viscosity: The number after 'w' represents the high-temperature viscosity of the engine oil. The larger the number, the higher the viscosity. Therefore, 10w50 engine oil has higher viscosity. Different usage periods: 10W40 is generally suitable for all seasons, while 10W50 is more suitable for large-displacement vehicles in summer. Different sealing properties: 10W50 has better sealing performance. Different fuel consumption: The higher the viscosity, the higher the fuel consumption. Therefore, 10W50 engines consume more fuel, while lower viscosity has the characteristic of saving fuel.
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