The difference between 5W20, 5W30, and 10W30 motor oils is how they perform at cold and hot temperatures, with 5W20 being thinner and better for cold starts, while 5W30 and 10W30 offer more protection at higher temperatures.

5W-30 is a multi-grade oil. Each element in its viscosity grade helps determine how the oil flows over a range of temperatures. Here’s what 5W-30 means: The first number, ‘5’, denotes how the oil will flow at 0°F (low temperature). The closer this number is to 0, the better the oil will perform at a low winter temperature.

2021年12月16日 · Let’s look at 5W-20 vs 5W-30 first. Then we’ll look at 5W-30 vs 10W-30. The primary difference between 5W-20 vs 5W-30 is their viscosity once your engine has reached operating temperature. Notice the different numbers in …

2024年4月15日 · Engine oil viscosity refers to the oil’s resistance to flow. It is indicated by numbers such as 5W-30 or 15W-50, where the first number denotes the oil’s viscosity at cold temperatures and the second number indicates its viscosity at operating temperatures. How is Viscosity Measured?

What does SAE 5W-30 mean? The short answer : The numbers represent the viscosity of the oil and the W stands for WINTER. The long answer : The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to …

This means at below-freezing temperatures, 5W30 is generally thinner (flowier) than 10W30. They also differ in their lowest operating temperature. 5W30 will still flow at temperatures as low as -22°F, while 10W30 will only work until 0°F. 5W30 is also somewhat more versatile for any season due to its wider temperature spread.

2024年4月10日 · The operating temperature range of your engine plays a significant role in determining the ideal viscosity grade. For lower temperatures, such as during winter or in colder climates, oils with a lower viscosity grade, like 0W-20 or 5W-20, are recommended.

2021年7月21日 · The ambient temperature range of most 5W-30 oils is from -30 degrees Celcius (-22 F) to 40 degrees Celcius (104 F). Is 5W-30 Good for High Mileage? Oil viscosity or grade doesn’t have much to do with the mileage of the car.

2023年1月14日 · Being a multigrade engine oil, Sae 5w-30 Engine oil can operate properly in a wide range of climates. Generally, Society of Automotive Engineers grade 5w-30 motor oil operates in climate condition as low as 30Cº (-22º F) to temp as high as 40º C (104º F).

For a SAE 5W-30 multi-grade oil, the first number (5W) is the 'cold' viscosity rating of the oil, the 'W' stands for winter, and the last number (30) is the 'hot' viscosity rating of the oil. Therefore, when the oil is cold (e.g. in sub-zero temperatures) it has a rating of '5W'.