I had in mind that I needed to change the oil in my 790 so I went into the shed to make sure I had a filter. I found a filter but it looked like it was for the hydraulic/transmission rather than the oil. Unfortunately, I didn't write the "fits" on the box so then I went to look in the manual to check. Well, dang it seems I changed the engine oil about 60 hours ago and had forgotten it. I did realize that I'm due for a transmission/hydraulic change in another 50 hours or so. I need to get some more hyguard for that.
I must be getting old, can't remember what I've done. Thank goodness I remembered to write it down!