Miles per gallon for Models H, F, K, G

Just found an interesting bit of information in the International Trail Vol 3 no. 1 dated 1921. In a comparison of trucks it shows miles per gallon for H at 9 mpg, F 8 mpg, K 7 mpg, and G 6 mpg. Also shows oil usage at 100 miles per quart for the H, 90 miles per quart for the F, 75 miles per quart for the K, and 50 miles per quart for the G.
http://content.wisconsinhistory.org/cdm/search/collection/ihc/searchterm/The%20International%20Trail%3A%20Volume%201%2C%20number%201/order/nosort

Shoot, the H get the same mileage as the big block F250 I am currently driving, I do get better oil usage tho. ;>)