Exact Tank Car Capacities

Someone posted a 1919 Boyd's Tank Car List, which lists exactly all tank car capacities
down to the last gallon, not rounded off to amounts that end in "00," like "6500
gallons." The list also breaks down the shell capacity and the dome capacity.

books.google.com/books?id=4y0wAAAAYAAJ&pg=PA1#v=onepage&q=&f=false

(you will have to cut and paste after the []). It is
also downloadable into PDF.

A word of caution about heaters in D&RGW tank cars. Sometime between 1920 and
1945, the D&RGW put internal steam heating pipes in some of its tank cars.
These occupied a volume and reduced the capacity from what is listed in the 1919
Boyd's List. I have determined that the Type E heating pipes occupied 113
gallons. So, if a D&RGW tank car had a Type E heater, you subtract 113 gallons
from the amount shown in the 1919 Boyd's.

The way that I determined 113 gallons is that I found a 1929 Boyd's, by the time
of which the Type E heaters had been installed, and found that almost all cars
with Type E heaters had a 113 gallon difference. A few had a 112 gallon
difference, probably due to rounding. Other types of heaters, such as the Type
W, had not been installed by 1929.

For now, I presume that the other types of heaters occupied somewhere between
100 and 125 gallons.