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  1. While the two numbers specify the SAE viscosity grade, the viscosity index shows the temperature related change of viscosity. This page gives an overview of the oil specifications, see also the measurement data of engine oils and gear oils over a wide temperature range.

    • Engine Oil

      Lubricant, lube, engine oil, motor oil, viscosity, SAE. Find...

    • Viscosity Index

      Figure 2 displays how VI improvers influence the oil’s...

    • Rheology

      Rheology is a branch of physics. Rheologists describe the...

    • Density

      The values of apparent density and true density are...

  2. identify quality motor oils for gasoline- and diesel-powered vehicles. Oils displaying these marks meet performance requirements set by U.S. and international vehicle and engine manufacturers and the lubricant industry.

  3. Specifications for engine oils. SAE | ACEA | API | JASO | ILSAC | OEM approvals. In principle, all engine oils serve the same purpose. They lubricate the moving parts in the engine compartment, prevent wear and corrosion and ensure heat dissipation.

  4. 1. Performance Level Motor oils designed for cars, vans, and light trucks with gasoline engines fall under API’s “S” (Service) categories. Motor oils designed for heavy-duty trucks and vehicles with diesel engines fall under API’s “C” (Commercial) categories. Please see the Gasoline Engines and Diesel Engines charts on the next

  5. Lubricant, lube, engine oil, motor oil, viscosity, SAE. Find viscosity tables and charts for engine oil at multiple temperatures (viscosity and density values with their source).

  6. The Society of Automotive Engineers (SAE) set parameters for multigrade oils and viscosities base upon cold cranking viscosity, pumpability and cST measured at operating temperature. The table below shows these requirements. Permanent Vs Temporary Shear.

  7. 22 lis 2016 · This SAE Standard outlines the engine oil performance categories and classifications developed through the efforts of the Alliance of Automobile Manufacturers (Alliance), American Petroleum Institute (API), the American Society for Testing and Materials (ASTM), the Engine Manufacturers Association

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