Owners manual says nothing about a transmission filter change or even what to add to the tank that I could find. Doing a Google search and for other models it seems to be every 200 hours using 20W-50 oil.
Got the mower this spring and has 450 hours on the meter with no history of previous maintenance.
Plan on changing the filters/oil at the end of season and was wondering what the cross reference number might be for a name brand filter i.e Wix, Fram, etc ... as I get a 25% discount through work at the local parts place. They don't carry Hydro-Gear filters.