How do the numbers on antifreeze/coolant relate to its properties?

Sep 30, 2023 ... What do the terms 5W40 and 5W30 mean? In both 5W30 and 5W40 engine oil grades, the 'W' stands for the word 'winter', as designed by the ... Feb 25, 2020 ... The number before the W represents the viscosity (thickness)and rates the oil's flow at -17.8 degrees Celsius. So, a 5W-30 would thicken less than a 10W-30 but ... What is the difference between different grades of motor oil? What do the numbers and letters mean? Here's a hint: the 'W" in 5W-30 does not mean "weight". Mar 19, 2025 ... Meanwhile, the number of operable crude oil refineries in the United States dropped more than 50 percent from 301 units in 1982 to 132 units in ... Aug 22, 2020 ... Oil weight doesn't refer to how heavy an oil is; it's a measure of viscosity, or the thickness of a fluid. Syrup, for example, has a high ... Aug 5, 2024 ... The Second Number represents the oil's viscosity at high temperatures. Higher numbers mean the oil is thicker, providing better lubrication at ... Sep 18, 2023 ... ... Numbers 4:16). Three times it is called the "holy, anointing oil ... What does it mean to be anointed? What is hyssop? What was hyssop ... Feb 2, 2025 ... ... number is, the heavier the oil). Look at how the darker segments of ... Come to mention it: what does this all spell for negotiations with ... Oil viscosity explained: It's the measure of oil's resistance to flow, affecting lubrication, reducing friction, and ensuring optimal engine performance. Feb 27, 2024 ... Lower numbers indicate thinner oils that flow more easily at low temperatures, while higher numbers denote thicker oils that provide better ...