TheOldHokie
Well-known member
Lifetime Member
Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
I have a far more detailed and much more trustworthy analysis from Infineum that covers multiple house brands. What it revealed is that with the exception of the yellow bucket crap they were all decent GL4 level gear lubes. Some better than others. The yellow bucket crap was horrible and certainly not up to GL4 standards.. The surprise player was Harvest King which was actually pretty top of the heap.You are correct that the requirements for an HST system are less than required of a gear drive tractor. And virtually any fluid can act as a hydraulic fluid insofar as being incompressible and pumpable. Not all fluids are compatible with all seal materials and some fluids are better lubricants than others.
In all probability your seals are compatible with almost any petrolium oil. Hopefully the TSC oil offers sufficient lubricity, although, again, they are using weasel words rather than claiming to have actually been tested against a specified standard. Here's a TBN thread containing an oil analysis of used Traveller's fluid: https://tractorbynet.com/forums/thr...ller-premium-universal-hyd-trans-fluid.404461
Have a look at this datasheet for Ultraction SSL It has some pretty impressive characteristics