Jim, that is what you need, not the white dino version, you should just stick with that and run it all year long, it should be plenty good for your needs in all kinds of weather.
It has a little more TBN and little less volatility than the dino version. This time next year ULSD fuel should be on the market and the chances of the TBN being depleted within 100 hrs (say 60-70 gallons of fuel) should be nil.
I switched over the OEM original oil to the Amsoil 10W-40 @ 50 in both the L-39 and L03130, neither has consumed any measurable oil inbetween change outs at 100hrs. I haven't had the oil analysed in this particular application, but based on my previous experiences in my other turbodiesels over the years, I would bet it would be adequate for 200 hrs of operation. But I just as soon change out the filters and oil @100hrs anyhow, that's about every 6 months for me.
I had been trying to get 30 gallons of Kubota SuperUDT from my previous suppliers as I've been using that in both the GST equipped machines since I got them, but the suppliers cost and shipping has increased tremendously recently. I finally just received a 30 gallon barrel of Amsoil's Synthetic Hydraulic Oil rated @ 5W-30, thin enough for cold startup operation and thick enough at operational temps around 150*F to suit me. I'll let you know how it works out as I'll be changing out the SuperUDT in another couple of weeks.