Understanding Viscosity Grades in Magnum Diesel Oils

Understanding viscosity grades in MAGNUM Diesel Oils is essential for selecting the right lubricant for heavy-duty engines. Viscosity grades, defined by the Society of Automotive Engineers (SAE), indicate how the oil flows at different temperatures. For example, in SAE 15W-40, the “15W” represents the oil’s performance in cold temperatures (W stands for winter), ensuring smooth engine start-up, while “40” indicates its thickness at high operating temperatures, providing strong protection under heavy loads. Choosing the correct viscosity grade helps maintain optimal lubrication, reduce engine wear, improve fuel efficiency, and extend engine life, especially in demanding industrial and commercial applications.