What fluid for Ariens hydrostatic drive?

[Thumbcocker]

Doing the annual servicing of the Ariens zero turn. I want to change the hydrostatic drive fluid and filters. What type of fluid should I use?

Note, I have an abundant supply of new formula (about 20 weight) tractor hydraulic fluid. Any possibility I could use it?

[Gone_rabid]

I suggest looking up what is suitable for your model.

We have a cub cadet zero turn that recommends their oil and elsewhere in the book says rotella 15w-40 can be used so that is what I use now. Strange isn’t it.

[Jsm180]

I use 20w50 in my Hustler zero turn, straight 20wt might be a little thin.

[Finster101]

I believe it is a 20w50 full synthetic oil not hydraulic fluid.

[Winger Ed.]

If you don't have a owner's manual for it, most are available on line from the manufacturer.
Or, call a shop that works on them and ask.

I put the wrong stuff in a transmission once thinking, "Ahhh, this otta work and I've already got plenty of it'.
I turned a oil change into a full rebuild.
After I blew out the seals and ruined the bearings in it, I'm more careful now.
Now days, I've learned to think that the folks who build these things might know more about them than I do.

[wildwilly501]

It should be 15W-50 synthetic motor oil.But just to be sure what’s the model #