POE stands for Polyolester, which is a distinctive base fluid used in synthetic lubricants that are often preferred in industrial applications due to their compatibility with other lubricants, both blended and fully synthetic.* These lubricants perform exceptionally well in different compressor types but are primarily intended for use in rotary compressors. They are formulated to exceed the performance characteristics of mineral-based oils.
ISO VG 68 oils have a midpoint kinematic viscosity of 68 mm2/s, also referred to as centistokes (cSt). The midpoint is derived by taking the average of both the minimum and maximum kinematic viscosities. In the case of ISO VG 68 oil (also AGMA 2 oil), those numbers are 61.2 cSt and 74.8 cSt, respectively. These numbers refer to the standard testing mechanisms used to determine how much resistance to flow (i.e. viscosity) these oils demonstrate.
*Check with OEM specifications to determine if POE-based fluids will be compatible with your lubricants and/or machinery.
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