Shell Tellus S2 VX 68 is a premium mineral based lubricant that is used in Hydraulic Systems. Tellus is a line of Shell Lubricants that covers a variety of hydraulic applications. The "VX" series is a group of premium Anti-Wear (AW) hydraulic oils with outstanding oxidation resistance and a High Viscosity Index (HVI) which means it has great flow properties in extreme temperature conditions. 68 represents the thickness of the oil which is an International Standards Organization Viscosity Grade (ISO VG) 68.
The Shell Tellus line has gone through many name changes over the years. The Tellus S2 VX line replaces Tellus S2 V and Tellus T Premium lines.