On Saturday, May 15, 2021 at 5:16:35 PM UTC-4, Ralph Mowery wrote:
In article ,
says...

Too bad to only get 300 hours out of it. Hilly yard ?
My WheelHorse has about 1100 and I expect a lot more
before it bites the dust. I only change the tranny oil & filter
about every 5 years / 250 hours - fairly flat yard and no
winter use.

The yard does have some hill to it in the back. I did use a plugging
aireator once a year on the flat front yard that may have helped wear
out the transmission. However there are lots on the Internet that say
they are only getting around 300 hours out of that transmission.

Had I known then what I know now I would have bought a higher quality
one. At the time the 48 inch cut on the mower seemed to be adiaquit for
about 1 1/2 acres.


The transmission is made by another company that produces several
qualities of them. The higher end ones have a good reputation, but they
are made for a relative easy fluid change.

IDK what's going on, but I agree with your issue. Seems like a short change
interval to me too, given that auto trannys are mostly filled for life now and
sure get used a lot more hours and harder use than a lawn tractor. I wonder
about the filled for life concept too, where you can't even check the fluid level.
You would think some of them would develop a leak and if you don't realize it,
something very bad would happen. I wonder if they have a level sensor or
similar to warn of impending disaster?