My new Kubota BX25d came with a sheet in the owner's manual bag giving advice on fuel recommendations. Please excuse my ignorance but I do not have a clue how much vegetable oil or whatever is in the diesel fuel at the local convenience store. I have read a lengthy thread on additives on here but it didn't help clarify which fuel to use in my new ( picked it up day before yesterday) BX 25D. I only have 1 bar of fuel ( LCD fuel gauge)left ! Please help so I do the best for my tractor... Thank you in advance for any help you can give me.