In article .com,
says...
My Clausing 8540 specifies Shell Tellus No. 29 Hydraulic Oil for the
variable speed drive and S.A.E No. 140 Hypoid Extreme Pressure Oil for
the hypoid gears.

I think that Valvoline 85W/140 HP Gear Oil can replace the S.A.E. No.
140 and I believe that a Mobile DTE24 hydraulic oil in an ISO32 can
replace the Shell Tellus No. 29 Hydraulic Oil. I cannot locate any
specs on the Shell Tellus No. 29 Hydraulic Oil.


I find a couple references to Tellus 29 that lead me to believe it was
closer to ISO46, in which case DTE 25 would be a closer match. DTE
Medium, which is an ISO46 turbine or circulating oil and is what I use
the headstock of my 10EE, would also be fine. McMaster sells it in
gallons.

Ned Simmons