With a little smoke. Our Fireman opens the firing lever just a bit to provide some gray smoke, as our replica of the Lincoln Funeral Train makes its way east toward Philadelphia on the very same right of way traveled by the original train back in April of 1865.
Although the locomotive "Leviathan" is a replica of a wood-burning 4-4-0 American Standard, and she does carry some wood on the tender deck, she is, in fact, an oil-burner. Oil-firing has significant advantages over wood, such as better BTU value, easier refueling, and of course, a much lower danger of trackside fires.