Great advise as I have added the lube to every tank since I read you advise. I have went through several gallons so far. Them old tractors will smoke a little, but they sure start, run good and know doubt last longer with fewer problems with the additive. I remember you saying don't add it to the newer diesel engines with the regen (filter) as it may not work out good with that BS.Depending on the region it was normally 20% Kerosene 80% diesel. You definitely need a lubricant like TC-W outboard 2 cycle oil.
Since 2006 diesel hasn’t had the lubricant quality and kerosene will be less as there are less long chain paraffin molecules .
I half raised the boy that’s over blending in the refinery, next time I see him and I remember I will ask what they are adding for lubrication.