Shell Tellus S3 M 32 is the direct successor of Shell Tellus S 32. This name change was made in 2014. This is a better filterable hydraulic oil with a high base oil quality that can handle higher pressures than the Tellus S2 series.Shell Tellus S3 M hydraulic fluids are high performance lubricants that use exclusive zinc-free technology to provide outstanding protection and performance in most manufacturing and many mobile equipment operations.