Are there any government regulations regarding oil viscosity?

... oil changes & checking your oil level regularly. What do the numbers mean on motor oil? The first number of a multi-grade oil designates the ability for the oil ... ... oils can be used in most conditions. What does 5w40 actually mean? The “W” stands for “winter,” the number preceding it indicates the oil's viscosity (or ... Feb 6, 2025 ... The grade of oil will usually be “number + W + number” for example “5W-30.” The “W” means “winter.” The number before the “W” represents the cold winter ... 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". Each sticker contains the PLU (price look-up) number, but that's not all. Produce stickers are full of information about the fruit and veggies you purchase at ... 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 ... Jan 17, 2025 ... If you have questions on what RIN is, how RINs are traded, what types of RIN transactions include, and how EPA records all transactions ... 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. 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 ... Oct 10, 2023 ... SPF stands for Sun Protection Factor. The SPF number indicates the level of protection against ultraviolet (UV) B rays.