Just some more info on how desperate they were in regard to fuel and oil. Alcohol and pin tree oil. The avgas they did have was not very good either as it sat deteriorating in storage:
"Following are notes taken from Japanese Monograph No. 23, dealing with the Imperial Army air force in the defense of the home islands. (The mixture of metric and "English" measurement appears in the original.) ....
...Imports of gasoline ended May 1945. The army had 13 million gallons of avgas on 1 Aug, with 10.5 million gal reserved for the Ketsu-go suicide attack on the U.S. fleet. Half of trainers and 10 percent of transports converted to run on alcohol. Shokon oil from pine-tree roots was in production but no deliveries before war's end."
