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What is the difference between 5w30 and 0w30 engine oil?

1 Answers

HadleyMarie

07/29/25 4:30pm

5w30 and 0w30 engine oils differ in their low-temperature fluidity. 5w30 oil can flow normally at temperatures as low as -30 degrees Celsius, while 0w30 oil can flow normally at -35 degrees Celsius, indicating that 0w30 oil has better low-temperature fluidity. Here is some information about engine oil: 1. Engine oil is the lubricant used in engines, composed of base oil and additives. 2. The density of engine oil is approximately 0.91×10³ (kg/m³). It serves multiple functions such as lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption, earning it the nickname 'the blood of the car.'

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