ISO VG 32, SAE 10Wt. Oil

Oil classifications may sometimes be interchangeable, or relatable in terms of viscosity. For example, sometimes an oil may be listed as both an ISO VG 32 oil and an SAE 10 Wt. oil - this isn't an error. Though the classifications are different, the two viscosities of these oils are very similar. Therefore, pay attention to both OEM specifications and oil specifications to determine which oil will work best (and most safely) in your machinery.

ISO VG is the acronym for the International Standards Organization Viscosity Grade while SAE stands for the Society of Automotive Engineers. These classifications are usually reserved for industrial lubricants and automotive lubricants, respectively.

ISO VG 32/SAE 10 lubes may be used in industrial applications and (few) automotive applications. They are most commonly employed in hydraulics, manufacturing applications (with an emphasis on environmental safety), machinery that handles food, slide ways, air and gas compressors, and some old auto engines.

Though the viscosities of these two classifications are most often interchangeable, the numbers listed for each specification may vary dependent upon the testing mechanism. For instance, ISO VG 32 oil has a midpoint kinematic viscosity of 32 mm2/s or 32 centistokes (cSt) while SAE 10 Wt. oil has a minimum high-temperature kinematic viscosity of 4.1 mm2/s (cSt). In either case, make certain that the OEM specifications of your machine match up with whatever oil spec you are looking for.

Click here to view or print the Comparative Viscosity Chart.

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