What are the viscosity requirements for engine manufacturing lubricants?

Jul 18, 2024 ... What do the numbers in oil names mean? The designation usually includes the letters "W" (winter) and numbers, for example, 10w30 or 5w40. 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 ... Aug 18, 2011 ... The numbers are there to show the user what the "viscosity" of the oil is. Viscosity basically means how thick or how flow-y the oil is. If the ... The viscosity of an oil is measured by its resistance to flow. There are two numbers that define viscosity meaning. The first number precedes the letter 'W' ... Mar 13, 2003 ... Grade is used to simplify the selection of a oil of a given viscosity index. Using your example it should have been stated: An oil SAE 40 has a ... Feb 3, 2023 ... For example, if the oil is 5W-30, “5W” describes the oil's viscosity at low temperatures. The lower the number, the faster the oil will flow at ... 5 days ago ... When you spray it on, it run down, but this is nice because it doesn't, like, run everywhere, and you can just rub it in. kind of like lotion. I mean, I knew it meant to be carefull for the direction you install the oil filter cartridge... but I had no idea what PA or AL meant? I had asked a few car ( ... Oil viscosity explained: It's the measure of oil's resistance to flow, affecting lubrication, reducing friction, and ensuring optimal engine performance. 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 ...