Understanding viscosity grades in Magnum diesel oils is essential for selecting the right lubricant for heavy-duty engines. Viscosity refers to the oil’s resistance to flow, and it is classified using SAE grades such as 15W-40, 20W-50, or SAE 40, where the “W” indicates winter performance and the numbers represent oil thickness at low and high temperatures. In Magnum diesel oils, the ... https://millenniumgroup.ae/understanding-viscosity-grades-in-magnum-diesel-oils/