What does 0w40 mean for engine oil?

1 Answers
OGabriel
07/29/25 2:22pm
0W40 is the SAE standard viscosity value of engine oil, where 0W indicates that the oil can be used at a minimum temperature of -35 degrees Celsius, and 40 represents the kinematic viscosity standard at 100 degrees Celsius. Here is some information about engine oil: Types: Engine oil is divided into three types: full synthetic oil, semi-synthetic oil, and mineral oil. Oil grades: The packaging of engine oil usually has markings such as 5w30, 0w20, 5w40, etc., which indicate the oil grade. The 'W' stands for winter, meaning that if there is a 'W' in the grade, the oil can be used in winter.
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