Bio fuels in the military
The military has done near constant annual fuel compatibility testing of bio fuels since WW II.
They are considered a war time fall back fuel source. Too expensive for regular use, but handy to have as a fall back.
As such the US has constantly maintained a modest bio fuel production capability for decades that produced the small amounts of fuel needed for testing in everything from generators to tanks.
The problem now is that with tightening military budgets the Navy and others are being forced to spend excessive amounts of money on expanded bio fuel testing that is serving no real purpose beyond buying fuel from people and companies who donated to the 2008 and 2012 Obama campaigns.
Just an FYI. The 2012 training fuel budget allocated for a military unit I have connections in was just $36,000. That is supposed to provide all of the operational fuel for 192 vehicles for 12 months. A joke that means they can do no real training with their vehicles.
Yet the unit is also required to purchase $200,000 in bio fuel for testing. It is enough bio fuel to fill just 12 vehicles 3 times each. It works out to just over $31 a gallon for the fuel.
Something is wrong with that picture.