How do temperature extremes affect oil viscosity? What is the ideal operating temperature for engine oil?

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". Jul 1, 2024 ... When it comes to reporting progress, you'll often see the terminology 'Scopes 1, 2 and 3 emissions' used, but what do these numbers actually ... These are translated into the easier to understand SAE viscosity numbers you see on an oil bottle. OK . . .What does a 5W-30 do that an SAE 30 won't? When you ... What do they mean? The numbers represent the pitch size and the letter is a ... Oils for your car do not contain, for example, sufficient quantities of ... ... meaning of the preceding letters. For ... You'll notice that some components such as check valves, ball valves and isolation valves do not use tag numbers. In a 5W-30 for example, the number before the W describes the viscosity of the oil at low temperatures. The lower the number, the thinner the oil and the better ... Oct 10, 2023 ... SPF stands for Sun Protection Factor. The SPF number indicates the level of protection against ultraviolet (UV) B rays. Jan 15, 2024 ... Furnace error codes are helpful diagnostic tools that are built right into most modern heating systems. They're usually a set of numbers (or a ... Aug 28, 2013 ... What do the numbers on motor oil mean? All oils have a different viscosity and are designed to fit different types of engines. Use the wrong ... In this blog, we want to explain to you what the numbers in viscosity grades actually mean. Let's find out. To simply put it, 15w40 is a number code to specify ...