Smoke Fluid No. 909 was a specially designed fluid that was to be used with locomotives No. 243, 746 and 1872. It would also work with the smoking caboose No. 6557. Available from 1957 until 1966, it was also available during the last two years of the Post War Period: 1968 and 1969.
Lionel cataloged each 2 ounce plastic squeeze bottle for separate sale. The bottles were 3-7/8 inches high and should not be confused with the 1/2 ounce bottle that is 2-1/16 inches high that was included with the smoking locomotives and cars. This smaller bottle was not available for separate sale.