I am told you can run jet a in a diesel, but it will need additional lubrication. What will I need to ad and will this void my warranty?
Thanks,
Rich

I think that "Jet-A" is real close to #1 fuel oil or Kerosene or #1 Diesel Fuel.

We'll skip the part that says it's kind of illegal, (no road taxes), because I think you know that part already.

Boy, how much fuel additive to add to make the lubricity close to #2 road diesel. I really don't know. But you'll certainly get lousy mileage due to #1 having a lower BTU content than #2 diesel.