What is the difference between 10W-30 and 10W-40? What does multigrade oil mean?

Jun 27, 2003 ... what do those numbers mean? For lack of a better way to explain it the lower number is the viscosity of the oil at a certain low temperature ... ... oil and grease (O&G)]. Solids - A measurement of the concentration of ... My lab reports lists my results in “ppm.” What does that mean? Most ... 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 ... Feb 15, 2022 ... ... should know about your vehicle's oil system. Read below to take a deep dive into what those oil lights on the dash mean. If you want to ... 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 ( ... 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 ... These numbers refer to the oil's viscosity, or thickness, at different temperatures. ... The Society of Automotive Engineers (SAE) sets the standards for engine ... Do NOT recycle motor oil, chemical, or pesticide bottles. Due to ... What do the Numbers on the Plastic Containers Mean? This link opens in a new ... 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 ... Common Acura Service Codes: What Do These Combinations Mean? Code Name, Code Meaning. A12. Replace engine oil; Rotate tires; Replace air cleaner element ...