The Difference Between 10w30 and 5w30

[Kirk]

Here are the differences between 10w30 and 5w30: 1. High-temperature viscosity: The larger the number, the better the high-temperature performance. 2. Low-temperature viscosity: The smaller the number before W, the better the low-temperature performance. 3. 5W-30 has better fluidity than 5w-40, which can reduce fuel consumption and allow the engine to dissipate heat faster. 4. 5W-40 is more stable than 5W-30 under high-temperature conditions of the engine. Additional information about engine oil: 1. 10W-30 is suitable for temperatures down to -18 degrees Celsius; if the temperature is lower than -18 degrees Celsius, 5W-30 should be used. 2. 5W-30 has high-temperature limits and is suitable for use below 40 degrees Celsius; the maximum applicable temperature for 5W-30 will drop to around 15 degrees Celsius.