I had a older Kubota tractor, I forget the model, however it was probably around a 90 model or so ( I had this around 1994) and it was a 30 hp tractor. You could plow all day, or mow on 5 dollar of fuel, the engine was outstanding never used oil, nice sound to it as well. It had a two speed PTO which I never used the 1000 rpm, it was one of the finest tractors I have ever owned. The only problem I had was it was light on the front end, it could have been corrected by weights however I never did that so it would rear up easy when pulling logs etc. I just wanted to chime in on the quality of Kubota, if they have not changed they set a new standard of small diesel utility tractors.
I ended up with a Ford 4000, and that still was not really big enough for what I was doing playing farm boy.