Home heating oil is NOT diesel fuel, it contains a minimum of 3,000ppm sulfur and upwards to 7,0000ppms, whilst road diesel contains <500 ppms, usually around 350ppms or so. Not to mention its cetane value is not even measured but usually below 40...
Try getting some <300ppm 50 cetane BP Supreme Diesel and your Kubota will sound like it suddenly became a smooth jet turbine engine, instead of sounding like a Mack truck.
Home heating oil is great if you wish to contaminate your crankcase oil with sulfuric acid and dissolve your crank bearings. Have fun, save a few cents in the short run and pay big time in the long run.... /forums/images/graemlins/confused.gif