Years ago, I gaumbed onto 5 gallons of a water clear hy-fluid that I think was used as the working fluid that powered the railroads Track Tie Replacement Machines. They had 3-71 GMC's as power units that ran the hy-system. No mechanical links at all! The "Tie Saw", The "Scarifier", the "Tie Handler", the "Tie Inserter", the "Tie Spiker"......
Anyway, Mom had a sale when we left the farm and our neighbor up the road bid on it and was tickled pink when he bought the stuff.
I figure he was going to use it in his Model 60, JD tractor hy-system?? But really don't know.
I bring this up here because I always thought that "hy-fluid" was red colored and not clear????