IIRR didn't you change the fluid back in 2015 when you worked on it?
what ever, Hytran is correct, but acceptable fluids are out there like those that meet the standards TSC's fluid is just one of those.
Now as far as filters, best to stick to cub, Deere or the others listed here on OCC.
Do not go by some list of "will fit" filters just because they will screw on and not leak,
as you don't want a filter that has a drain back valve.
You are shooting yourself in the foot doing that.
Cool temps, clogged filter or worse, a wrong filter or one that has moisture frozen in it will cause your symptoms.
And if you never changed the fluid, do yourself a favor and do it.
Also If you never removed the rear cover to clean the accumulated sludge in the bottom, it would be a good time to do it and you will never have to do it again.
Removing the cover is the best way to drain it.
Have fun, and remember the fluid comes out fast once the last bolt is removed.
